/ nucl-ex CERN-EP-2016-153


Multiplicity-dependent enhancement of strange and multi-strange hadron production in proton-proton collisions at $\sqrt{s} = 7$ TeV


Adam, Jaroslav (Prague, Tech. U.) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (INFN, Turin) ; Agrawal, Neelima (Indian Inst. Tech., Mumbai) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) ; Aiola, Salvatore (Yale U.) ; Akindinov, Alexander (Moscow, ITEP) ; Alam, Sk Noor (Calcutta, VECC) ; Silva De Albuquerque, Danilo (Campinas State U.) ; Aleksandrov, Dmitry (Kurchatov Inst., Moscow) ; Alessandro, Bruno (INFN, Turin) ; Alexandre, Didier (Birmingham U.) ; Alfaro Molina, Jose Ruben (Mexico U.) ; Alici, Andrea (INFN, Bologna) ; Alkin, Anton (BITP, Kiev) ; Alme, Johan (Bergen Coll. Higher Educ.) ; Alt, Torsten (Frankfurt U., FIAS) ; Altinpinar, Sedat (Bergen U.) ; Altsybeev, Igor (St. Petersburg State U.) ; Alves Garcia Prado, Caio (Sao Paulo U.) ; An, Mangmang (Hua-Zhong Normal U.) ; Andrei, Cristian (Bucharest, IFIN-HH) ; Andrews, Harry Arthur (Birmingham U.) ; Andronic, Anton (Darmstadt, EMMI) ; Anguelov, Venelin (Heidelberg U.) ; Anticic, Tome (Boskovic Inst., Zagreb) ; Antinori, Federico (INFN, Padua) ; Antonioli, Pietro (INFN, Bologna) ; Aphecetche, Laurent Bernard (SUBATECH, Nantes) ; Appelshaeuser, Harald (Frankfurt U., Inst. Kernphys.) ; Arcelli, Silvia (Bologna U.INFN, Bologna) ; Arnaldi, Roberta (INFN, Turin) ; Arnold, Oliver Werner (Tech. U., Munich (main)) ; Arsene, Ionut Cristian (Oslo U.) ; Arslandok, Mesut (Frankfurt U., Inst. Kernphys.) ; Audurier, Benjamin (SUBATECH, Nantes) ; Augustinus, Andre (CERN) ; Averbeck, Ralf Peter (Darmstadt, EMMI) ; Azmi, Mohd Danish (Aligarh Muslim U.) ; Badala, Angela (INFN, Catania) ; Baek, Yong Wook (Konkuk U.) ; Bagnasco, Stefano (INFN, Turin) ; Bailhache, Raphaelle Marie (Frankfurt U., Inst. Kernphys.) ; Bala, Renu (Jammu U.) ; Balasubramanian, Supraja (Yale U.) ; Baldisseri, Alberto (IRFU, Saclay) ; Baral, Rama Chandra (Bhubaneswar, Inst. Phys.) ; Barbano, Anastasia Maria (Turin U.INFN, Turin) ; Barbera, Roberto (Catania U.INFN, Catania) ; Barile, Francesco (Bari U.INFN, Bari) ; Barnafoldi, Gergely Gabor (Wigner RCP, Budapest) ; Barnby, Lee Stuart (CERN) ; Ramillien Barret, Valerie (Clermont-Ferrand U.) ; Bartalini, Paolo (Hua-Zhong Normal U.) ; Barth, Klaus (CERN) ; Bartke, Jerzy Gustaw (Cracow, INP) ; Bartsch, Esther (Frankfurt U., Inst. Kernphys.) ; Basile, Maurizio (Bologna U.INFN, Bologna) ; Bastid, Nicole (Clermont-Ferrand U.) ; Basu, Sumit (Calcutta, VECC) ; Bathen, Bastian (Munster U.) ; Batigne, Guillaume (SUBATECH, Nantes) ; Batista Camejo, Arianna (Clermont-Ferrand U.) ; Batyunya, Boris (Dubna, JINR) ; Batzing, Paul Christoph (Oslo U.) ; Bearden, Ian Gardner (Bohr Inst.) ; Beck, Hans (Heidelberg U.) ; Bedda, Cristina (INFN, Turin) ; Behera, Nirbhay Kumar (Inha U.) ; Belikov, Iouri (Strasbourg, IPHC) ; Bellini, Francesca (Bologna U.INFN, Bologna) ; Bello Martinez, Hector (Puebla U., Mexico) ; Bellwied, Rene (Houston U.) ; Belmont Iii, Ronald John (Wayne State U.) ; Belmont Moreno, Ernesto (Mexico U.) ; Espinoza Beltran, Lucina Gabriela (Sinaloa U.) ; Belyaev, Vladimir (Moscow Phys. Eng. Inst.) ; Bencedi, Gyula (Wigner RCP, Budapest) ; Beole, Stefania (Turin U.INFN, Turin) ; Berceanu, Ionela (Bucharest, IFIN-HH) ; Bercuci, Alexandru (Bucharest, IFIN-HH) ; Berdnikov, Yaroslav (St. Petersburg, INP) ; Berenyi, Daniel (Wigner RCP, Budapest) ; Bertens, Redmer Alexander (Utrecht U.) ; Berzano, Dario (CERN) ; Betev, Latchezar (CERN) ; Bhasin, Anju (Jammu U.) ; Bhat, Inayat Rasool (Jammu U.) ; Bhati, Ashok Kumar (Panjab U.) ; Bhattacharjee, Buddhadeb (Gauhati U.) ; Bhom, Jihyun (Cracow, INP) ; Bianchi, Livio (Houston U.) ; Bianchi, Nicola (Frascati) ; Bianchin, Chiara (Wayne State U.) ; Bielcik, Jaroslav (Prague, Tech. U.) ; Bielcikova, Jana (Rez, Nucl. Phys. Inst.) ; Bilandzic, Ante (Tech. U., Munich (main)) ; Biro, Gabor (Wigner RCP, Budapest) ; Biswas, Rathijit (Bose Inst., Kolkata@@@CAPSS, Kolkata) ; Biswas, Saikat (Bhubaneswar, NISER) ; Bjelogrlic, Sandro (Utrecht U.) ; Blair, Justin Thomas (Texas U.) ; Blau, Dmitry (Kurchatov Inst., Moscow) ; Blume, Christoph (Frankfurt U., Inst. Kernphys.) ; Bock, Friederike (Heidelberg U.) ; Bogdanov, Alexey (Moscow Phys. Eng. Inst.) ; Boggild, Hans (Bohr Inst.) ; Boldizsar, Laszlo (Wigner RCP, Budapest) ; Bombara, Marek (Kosice U.) ; Bonora, Matthias (CERN) ; Book, Julian Heinz (Frankfurt U., Inst. Kernphys.) ; Borel, Herve (IRFU, Saclay) ; Borissov, Alexander (Pusan Natl. U.) ; Borri, Marcello (Daresbury) ; Bossu, Francesco (iThemba LABS) ; Botta, Elena (Turin U.INFN, Turin) ; Bourjau, Christian (Bohr Inst.) ; Braun-Munzinger, Peter (Darmstadt, EMMI) ; Bregant, Marco (Sao Paulo U.) ; Breitner, Timo Gunther (Goethe U., Frankfurt) ; Broker, Theo Alexander (Frankfurt U., Inst. Kernphys.) ; Browning, Tyler Allen (Purdue U.) ; Broz, Michal (Prague, Tech. U.) ; Brucken, Erik Jens (Helsinki Inst. of Phys.) ; Bruna, Elena (INFN, Turin) ; Bruno, Giuseppe Eugenio (Bari U.INFN, Bari) ; Budnikov, Dmitry (RFNC-VNIIEF, Sarov) ; Buesching, Henner (Frankfurt U., Inst. Kernphys.) ; Bufalino, Stefania (CERN) ; Buncic, Predrag (CERN) ; Busch, Oliver (Tsukuba U.) ; Buthelezi, Edith Zinhle (iThemba LABS) ; Bashir Butt, Jamila (COMSATS, Islamabad) ; Buxton, Jesse Thomas (Ohio State U.) ; Cabala, Jan (Kosice Tech. U.) ; Caffarri, Davide (CERN) ; Cai, Xu (Hua-Zhong Normal U.) ; Caines, Helen Louise (Yale U.) ; Calero Diaz, Liliet (Frascati) ; Caliva, Alberto (Utrecht U.) ; Calvo Villar, Ernesto (Lima, Pont. U. Catolica) ; Camerini, Paolo (Trieste U.INFN, Trieste) ; Carena, Francesco (CERN) ; Carena, Wisla (CERN) ; Carnesecchi, Francesca (Bologna U.INFN, Bologna) ; Castillo Castellanos, Javier Ernesto (IRFU, Saclay) ; Castro, Andrew John (Tennessee U.) ; Casula, Ester Anna Rita (Cagliari U.INFN, Cagliari) ; Ceballos Sanchez, Cesar (Havana, CEADEN) ; Cepila, Jan (Prague, Tech. U.) ; Cerello, Piergiorgio (INFN, Turin) ; Cerkala, Jakub (Kosice Tech. U.) ; Chang, Beomsu (Jyvaskyla U.) ; Chapeland, Sylvain (CERN) ; Chartier, Marielle (Liverpool U.) ; Charvet, Jean-Luc Fernand (IRFU, Saclay) ; Chattopadhyay, Subhasis (Calcutta, VECC) ; Chattopadhyay, Sukalyan (Saha Inst.) ; Chauvin, Alex (Excel. Cluster Universe, Munich) ; Chelnokov, Volodymyr (BITP, Kiev) ; Cherney, Michael Gerard (Creighton U.) ; Cheshkov, Cvetan Valeriev (Lyon, IPN) ; Cheynis, Brigitte (Lyon, IPN) ; Chibante Barroso, Vasco Miguel (CERN) ; Dobrigkeit Chinellato, David (Campinas State U.) ; Cho, Soyeon (Inha U.) ; Chochula, Peter (CERN) ; Choi, Kyungeon (Pusan Natl. U.) ; Chojnacki, Marek (Bohr Inst.) ; Choudhury, Subikash (Calcutta, VECC) ; Christakoglou, Panagiotis (NIKHEF, Amsterdam) ; Christensen, Christian Holm (Bohr Inst.) ; Christiansen, Peter (Lund U.) ; Chujo, Tatsuya (Tsukuba U.) ; Chung, Suh-Urk (Pusan Natl. U.) ; Cicalo, Corrado (INFN, Cagliari) ; Cifarelli, Luisa (Bologna U.INFN, Bologna) ; Cindolo, Federico (INFN, Bologna) ; Cleymans, Jean Willy Andre (Cape Town U.) ; Colamaria, Fabio Filippo (Bari U.INFN, Bari) ; Colella, Domenico (CERN) ; Collu, Alberto (LBL, Berkeley) ; Colocci, Manuel (Bologna U.INFN, Bologna) ; Conesa Balbastre, Gustavo (LPSC, Grenoble) ; Conesa Del Valle, Zaida (Orsay, IPN) ; Connors, Megan Elizabeth (Yale U.) ; Contreras Nuno, Jesus Guillermo (Prague, Tech. U.) ; Cormier, Thomas Michael (Oak Ridge) ; Corrales Morales, Yasser (INFN, Turin) ; Cortes Maldonado, Ismael (Puebla U., Mexico) ; Cortese, Pietro (Piemonte Orientale U., Alessandria) ; Cosentino, Mauro Rogerio (Sao Paulo U.) ; Costa, Filippo (CERN) ; Crkovska, Jana (Orsay, IPN) ; Crochet, Philippe (Clermont-Ferrand U.) ; Cruz Albino, Rigoberto (CINVESTAV, IPN) ; Cuautle Flores, Eleazar (Mexico U., ICN) ; Cunqueiro Mendez, Leticia (CERN) ; Dahms, Torsten (Excel. Cluster Universe, Munich) ; Dainese, Andrea (INFN, Padua) ; Danisch, Meike Charlotte (Heidelberg U.) ; Danu, Andrea (Bucharest, Inst. Space Science) ; Das, Debasish (Saha Inst.) ; Das, Indranil (Saha Inst.) ; Das, Supriya (Bose Inst., Kolkata@@@CAPSS, Kolkata) ; Dash, Ajay Kumar (Bhubaneswar, NISER) ; Dash, Sadhana (Indian Inst. Tech., Mumbai) ; De, Sudipan (Sao Paulo U.) ; De Caro, Annalisa (Salerno U.INFN, Salerno) ; De Cataldo, Giacinto (INFN, Bari) ; De Conti, Camila (Sao Paulo U.) ; De Cuveland, Jan (Frankfurt U., FIAS) ; De Falco, Alessandro (Cagliari U.INFN, Cagliari) ; De Gruttola, Daniele (Salerno U.INFN, Salerno) ; De Marco, Nora (INFN, Turin) ; De Pasquale, Salvatore (Salerno U.INFN, Salerno) ; Derradi De Souza, Rafael (Campinas State U.) ; Deisting, Alexander (Darmstadt, EMMI) ; Deloff, Andrzej (Warsaw, Inst. Nucl. Studies) ; Denes, Ervin Sandor (Wigner RCP, Budapest) ; Deplano, Caterina (NIKHEF, Amsterdam) ; Dhankher, Preeti (Indian Inst. Tech., Mumbai) ; Di Bari, Domenico (Bari U.INFN, Bari) ; Di Mauro, Antonio (CERN) ; Di Nezza, Pasquale (Frascati) ; Di Ruzza, Benedetto (INFN, Padua) ; Diaz Corchero, Miguel Angel (Madrid, CIEMAT) ; Dietel, Thomas (Cape Town U.) ; Dillenseger, Pascal (Frankfurt U., Inst. Kernphys.) ; Divia, Roberto (CERN) ; Djuvsland, Oeystein (Bergen U.) ; Dobrin, Alexandru Florin (Bucharest, Inst. Space Science) ; Domenicis Gimenez, Diogenes (Sao Paulo U.) ; Donigus, Benjamin (Frankfurt U., Inst. Kernphys.) ; Dordic, Olja (Oslo U.) ; Drozhzhova, Tatiana (Frankfurt U., Inst. Kernphys.) ; Dubey, Anand Kumar (Calcutta, VECC) ; Dubla, Andrea (Utrecht U.) ; Ducroux, Laurent (Lyon, IPN) ; Dupieux, Pascal (Clermont-Ferrand U.) ; Ehlers Iii, Raymond James (Yale U.) ; Elia, Domenico (INFN, Bari) ; Endress, Eric (Lima, Pont. U. Catolica) ; Engel, Heiko (Goethe U., Frankfurt) ; Epple, Eliane (Yale U.) ; Erazmus, Barbara Ewa (SUBATECH, Nantes) ; Erdemir, Irem (Frankfurt U., Inst. Kernphys.) ; Erhardt, Filip (Zagreb U.) ; Espagnon, Bruno (Orsay, IPN) ; Estienne, Magali Danielle (SUBATECH, Nantes) ; Esumi, Shinichi (Tsukuba U.) ; Eum, Jongsik (Pusan Natl. U.) ; Evans, David (Birmingham U.) ; Evdokimov, Sergey (Serpukhov, IHEP) ; Eyyubova, Gyulnara (Prague, Tech. U.) ; Fabbietti, Laura (Excel. Cluster Universe, Munich) ; Fabris, Daniela (INFN, Padua) ; Faivre, Julien (LPSC, Grenoble) ; Fantoni, Alessandra (Frascati) ; Fasel, Markus (LBL, Berkeley) ; Feldkamp, Linus (Munster U.) ; Feliciello, Alessandro (INFN, Turin) ; Feofilov, Grigorii (St. Petersburg State U.) ; Ferencei, Jozef (Rez, Nucl. Phys. Inst.) ; Fernandez Tellez, Arturo (Puebla U., Mexico) ; Gonzalez Ferreiro, Elena (Santiago de Compostela U.) ; Ferretti, Alessandro (Turin U.INFN, Turin) ; Festanti, Andrea (Padua U.INFN, Padua) ; Feuillard, Victor Jose Gaston (Clermont-Ferrand U.) ; Figiel, Jan (Cracow, INP) ; Araujo Silva Figueredo, Marcel (Sao Paulo U.) ; Filchagin, Sergey (RFNC-VNIIEF, Sarov) ; Finogeev, Dmitry (Moscow, INR) ; Fionda, Fiorella (Cagliari U.INFN, Cagliari) ; Fiore, Enrichetta Maria (Bari U.INFN, Bari) ; Floris, Michele (CERN) ; Foertsch, Siegfried Valentin (iThemba LABS) ; Foka, Panagiota (Darmstadt, EMMI) ; Fokin, Sergey (Kurchatov Inst., Moscow) ; Fragiacomo, Enrico (INFN, Trieste) ; Francescon, Andrea (CERN) ; Francisco, Audrey (SUBATECH, Nantes) ; Frankenfeld, Ulrich Michael (Darmstadt, EMMI) ; Fronze, Gabriele Gaetano (Turin U.INFN, Turin) ; Fuchs, Ulrich (CERN) ; Furget, Christophe (LPSC, Grenoble) ; Furs, Artur (Moscow, INR) ; Fusco Girard, Mario (Salerno U.INFN, Salerno) ; Gaardhoeje, Jens Joergen (Bohr Inst.) ; Gagliardi, Martino (Turin U.INFN, Turin) ; Gago Medina, Alberto Martin (Lima, Pont. U. Catolica) ; Gajdosova, Katarina (Bohr Inst.) ; Gallio, Mauro (Turin U.INFN, Turin) ; Duarte Galvan, Carlos (Sinaloa U.) ; Gangadharan, Dhevan Raja (LBL, Berkeley) ; Ganoti, Paraskevi (Athens U.) ; Gao, Chaosong (Hua-Zhong Normal U.) ; Garabatos Cuadrado, Jose (Darmstadt, EMMI) ; Garcia-Solis, Edmundo Javier (Chicago State U.) ; Garg, Kunal (Catania U.INFN, Catania) ; Gargiulo, Corrado (CERN) ; Gasik, Piotr Jan (Excel. Cluster Universe, Munich) ; Gauger, Erin Frances (Texas U.) ; Germain, Marie (SUBATECH, Nantes) ; Gheata, Mihaela (Bucharest, Inst. Space Science) ; Ghosh, Premomoy (Calcutta, VECC) ; Ghosh, Sanjay Kumar (Bose Inst., Kolkata@@@CAPSS, Kolkata) ; Gianotti, Paola (Frascati) ; Giubellino, Paolo (CERN) ; Giubilato, Piero (Padua U.INFN, Padua) ; Gladysz-Dziadus, Ewa (Cracow, INP) ; Glassel, Peter (Heidelberg U.) ; Gomez Coral, Diego Mauricio (Mexico U.) ; Gomez Ramirez, Andres (Goethe U., Frankfurt) ; Sanchez Gonzalez, Andres (CERN) ; Gonzalez, Victor (Madrid, CIEMAT) ; Gonzalez Zamora, Pedro (Madrid, CIEMAT) ; Gorbunov, Sergey (Frankfurt U., FIAS) ; Gorlich, Lidia Maria (Cracow, INP) ; Gotovac, Sven (Split Tech. U.) ; Grabski, Varlen (Mexico U.) ; Grachov, Oleg Anatolievich (Yale U.) ; Graczykowski, Lukasz Kamil (Warsaw U. of Tech.) ; Graham, Katie Leanne (Birmingham U.) ; Grelli, Alessandro (Utrecht U.) ; Grigoras, Alina Gabriela (CERN) ; Grigoras, Costin (CERN) ; Grigoryev, Vladislav (Moscow Phys. Eng. Inst.) ; Grigoryan, Ara (Yerevan Phys. Inst.) ; Grigoryan, Smbat (Dubna, JINR) ; Grynyov, Borys (BITP, Kiev) ; Grion, Nevio (INFN, Trieste) ; Gronefeld, Julius Maximilian (Darmstadt, EMMI) ; Grosse-Oetringhaus, Jan Fiete (CERN) ; Grosso, Raffaele (Darmstadt, EMMI) ; Gruber, Lukas (Stefan Meyer Inst. Subatomare Phys.) ; Guber, Fedor (Moscow, INR) ; Guernane, Rachid (LPSC, Grenoble) ; Guerzoni, Barbara (Bologna U.INFN, Bologna) ; Gulbrandsen, Kristjan Herlache (Bohr Inst.) ; Gunji, Taku (Tokyo U.) ; Gupta, Anik (Jammu U.) ; Gupta, Ramni (Jammu U.) ; Haake, Rudiger (CERN) ; Hadjidakis, Cynthia Marie (Orsay, IPN) ; Haiduc, Maria (Bucharest, Inst. Space Science) ; Hamagaki, Hideki (Tokyo U.) ; Hamar, Gergoe (Wigner RCP, Budapest) ; Hamon, Julien Charles (Strasbourg, IPHC) ; Harris, John William (Yale U.) ; Harton, Austin Vincent (Chicago State U.) ; Hatzifotiadou, Despina (INFN, Bologna) ; Hayashi, Shinichi (Tokyo U.) ; Heckel, Stefan Thomas (Frankfurt U., Inst. Kernphys.) ; Hellbar, Ernst (Frankfurt U., Inst. Kernphys.) ; Helstrup, Haavard (Bergen Coll. Higher Educ.) ; Herghelegiu, Andrei Ionut (Bucharest, IFIN-HH) ; Herrera Corral, Gerardo Antonio (CINVESTAV, IPN) ; Herrmann, Florian (Munster U.) ; Hess, Benjamin Andreas (U. Tubingen) ; Hetland, Kristin Fanebust (Bergen Coll. Higher Educ.) ; Hillemanns, Hartmut (CERN) ; Hippolyte, Boris (Strasbourg, IPHC) ; Horak, David (Prague, Tech. U.) ; Hosokawa, Ritsuya (Tsukuba U.) ; Hristov, Peter Zahariev (CERN) ; Hughes, Charles (Tennessee U.) ; Humanic, Thomas (Ohio State U.) ; Hussain, Nur (Gauhati U.) ; Hussain, Tahir (Aligarh Muslim U.) ; Hutter, Dirk (Frankfurt U., FIAS) ; Hwang, Dae Sung (Sejong U.) ; Ilkaev, Radiy (RFNC-VNIIEF, Sarov) ; Inaba, Motoi (Tsukuba U.) ; Incani, Elisa (Cagliari U.INFN, Cagliari) ; Ippolitov, Mikhail (Kurchatov Inst., Moscow) ; Irfan, Muhammad (Aligarh Muslim U.) ; Isakov, Vladimir (Moscow, INR) ; Ivanov, Marian (CERN) ; Ivanov, Vladimir (St. Petersburg, INP) ; Izucheev, Vladimir (Serpukhov, IHEP) ; Jacak, Barbara (LBL, Berkeley) ; Jacazio, Nicolo (Bologna U.INFN, Bologna) ; Jacobs, Peter Martin (LBL, Berkeley) ; Jadhav, Manoj Bhanudas (Indian Inst. Tech., Mumbai) ; Jadlovska, Slavka (Kosice Tech. U.) ; Jadlovsky, Jan (Kosice, IEF) ; Jahnke, Cristiane (Sao Paulo U.) ; Jakubowska, Monika Joanna (Warsaw U. of Tech.) ; Janik, Malgorzata Anna (Warsaw U. of Tech.) ; Pahula Hewage, Sandun (Houston U.) ; Jena, Chitrasen (Padua U.INFN, Padua) ; Jena, Satyajit (Houston U.) ; Jimenez Bustamante, Raul Tonatiuh (Darmstadt, EMMI) ; Jones, Peter Graham (Birmingham U.) ; Jusko, Anton (Birmingham U.) ; Kalinak, Peter (Kosice, IEF) ; Kalweit, Alexander Philipp (CERN) ; Kang, Ju Hwan (Yonsei U.) ; Kaplin, Vladimir (Moscow Phys. Eng. Inst.) ; Kar, Somnath (Calcutta, VECC) ; Karasu Uysal, Ayben (Karatay U.) ; Karavichev, Oleg (Moscow, INR) ; Karavicheva, Tatiana (Moscow, INR) ; Karayan, Lilit (Darmstadt, EMMI) ; Karpechev, Evgeny (Moscow, INR) ; Kebschull, Udo Wolfgang (Goethe U., Frankfurt) ; Keidel, Ralf (Fachhochsch., Worms) ; Keijdener, Darius Laurens (Utrecht U.) ; Keil, Markus (CERN) ; Khan, Mohammed Mohisin (Aligarh Muslim U.) ; Khan, Palash (Saha Inst.) ; Khan, Shuaib Ahmad (Calcutta, VECC) ; Khanzadeev, Alexei (St. Petersburg, INP) ; Kharlov, Yury (Serpukhov, IHEP) ; Khatun, Anisa (Aligarh Muslim U.) ; Kileng, Bjarte (Bergen Coll. Higher Educ.) ; Kim, Do Won (Gangneung-Wonju Natl. U.) ; Kim, Dong Jo (Jyvaskyla U.) ; Kim, Daehyeok (Yonsei U.) ; Kim, Hyeonjoong (Yonsei U.) ; Kim, Jinsook (Gangneung-Wonju Natl. U.) ; Kim, Jiyoung (Heidelberg U.) ; Kim, Minwoo (Yonsei U.) ; Kim, Se Yong (Sejong U.) ; Kim, Taesoo (Yonsei U.) ; Kirsch, Stefan (Frankfurt U., FIAS) ; Kisel, Ivan (Frankfurt U., FIAS) ; Kiselev, Sergey (Moscow, ITEP) ; Kisiel, Adam Ryszard (Warsaw U. of Tech.) ; Kiss, Gabor (Wigner RCP, Budapest) ; Klay, Jennifer Lynn (Cal. Poly.) ; Klein, Carsten (Frankfurt U., Inst. Kernphys.) ; Klein, Jochen (CERN) ; Klein-Boesing, Christian (Munster U.) ; Klewin, Sebastian (Heidelberg U.) ; Kluge, Alexander (CERN) ; Knichel, Michael Linus (Heidelberg U.) ; Knospe, Anders Garritt (Houston U.) ; Kobdaj, Chinorat (Suranaree U. of Tech.) ; Kofarago, Monika (CERN) ; Kollegger, Thorsten (Darmstadt, EMMI) ; Kolozhvari, Anatoly (St. Petersburg State U.) ; Kondratev, Valerii (St. Petersburg State U.) ; Kondratyeva, Natalia (Moscow Phys. Eng. Inst.) ; Kondratyuk, Evgeny (Serpukhov, IHEP) ; Konevskikh, Artem (Moscow, INR) ; Kopcik, Michal (Kosice Tech. U.) ; Kour, Mandeep (Jammu U.) ; Kouzinopoulos, Charalampos (CERN) ; Kovalenko, Oleksandr (Warsaw, Inst. Nucl. Studies) ; Kovalenko, Vladimir (St. Petersburg State U.) ; Kowalski, Marek (Cracow, INP) ; Koyithatta Meethaleveedu, Greeshma (Indian Inst. Tech., Mumbai) ; Kralik, Ivan (Kosice, IEF) ; Kravcakova, Adela (Kosice U.) ; Krivda, Marian (Birmingham U.) ; Krizek, Filip (Rez, Nucl. Phys. Inst.) ; Kryshen, Evgeny (CERN) ; Krzewicki, Mikolaj (Frankfurt U., FIAS) ; Kubera, Andrew Michael (Ohio State U.) ; Kucera, Vit (Rez, Nucl. Phys. Inst.) ; Kuhn, Christian Claude (Strasbourg, IPHC) ; Kuijer, Paulus Gerardus (NIKHEF, Amsterdam) ; Kumar, Ajay (Jammu U.) ; Kumar, Jitendra (Indian Inst. Tech., Mumbai) ; Kumar, Lokesh (Panjab U.) ; Kumar, Shyam (Indian Inst. Tech., Mumbai) ; Kurashvili, Podist (Warsaw, Inst. Nucl. Studies) ; Kurepin, Alexander (Moscow, INR) ; Kurepin, Alexey (Moscow, INR) ; Kuryakin, Alexey (RFNC-VNIIEF, Sarov) ; Kweon, Min Jung (Inha U.) ; Kwon, Youngil (Yonsei U.) ; La Pointe, Sarah Louise (INFN, Turin) ; La Rocca, Paola (Catania U.INFN, Catania) ; Ladron De Guevara, Pedro (CINVESTAV, IPN) ; Lagana Fernandes, Caio (Sao Paulo U.) ; Lakomov, Igor (CERN) ; Langoy, Rune (Vestfold U. Coll., Tonsberg) ; Lapidus, Kirill (Yale U.) ; Lara Martinez, Camilo Ernesto (Goethe U., Frankfurt) ; Lardeux, Antoine Xavier (IRFU, Saclay) ; Lattuca, Alessandra (Turin U.INFN, Turin) ; Laudi, Elisa (CERN) ; Lea, Ramona (Trieste U.INFN, Trieste) ; Leardini, Lucia (Heidelberg U.) ; Lee, Seongjoo (Yonsei U.) ; Lehas, Fatiha (NIKHEF, Amsterdam) ; Lehner, Sebastian (Stefan Meyer Inst. Subatomare Phys.) ; Lemmon, Roy Crawford (Daresbury) ; Lenti, Vito (INFN, Bari) ; Leogrande, Emilia (Utrecht U.) ; Leon Monzon, Ildefonso (Sinaloa U.) ; Leon Vargas, Hermes (Mexico U.) ; Leoncino, Marco (Turin U.INFN, Turin) ; Levai, Peter (Wigner RCP, Budapest) ; Li, Shuang (Clermont-Ferrand U.) ; Li, Xiaomei (Beijing, Inst. Atomic Energy) ; Lien, Jorgen Andre (Vestfold U. Coll., Tonsberg) ; Lietava, Roman (Birmingham U.) ; Lindal, Svein (Oslo U.) ; Lindenstruth, Volker (Frankfurt U., FIAS) ; Lippmann, Christian (Darmstadt, EMMI) ; Lisa, Michael Annan (Ohio State U.) ; Ljunggren, Hans Martin (Lund U.) ; Lodato, Davide Francesco (Utrecht U.) ; Lonne, Per-Ivar (Bergen U.) ; Loginov, Vitaly (Moscow Phys. Eng. Inst.) ; Loizides, Constantinos (LBL, Berkeley) ; Lopez, Xavier Bernard (Clermont-Ferrand U.) ; Lopez Torres, Ernesto (Havana, CEADEN) ; Lowe, Andrew John (Wigner RCP, Budapest) ; Luettig, Philipp Johannes (Frankfurt U., Inst. Kernphys.) ; Lunardon, Marcello (Padua U.INFN, Padua) ; Luparello, Grazia (Trieste U.INFN, Trieste) ; Lupi, Matteo (CERN) ; Lutz, Tyler Harrison (Yale U.) ; Maevskaya, Alla (Moscow, INR) ; Mager, Magnus (CERN) ; Mahajan, Sanjay (Jammu U.) ; Mahmood, Sohail Musa (Oslo U.) ; Maire, Antonin (Strasbourg, IPHC) ; Majka, Richard Daniel (Yale U.) ; Malaev, Mikhail (St. Petersburg, INP) ; Maldonado Cervantes, Ivonne Alicia (Mexico U., ICN) ; Malinina, Liudmila (Dubna, JINR) ; Mal'Kevich, Dmitry (Moscow, ITEP) ; Malzacher, Peter (Darmstadt, EMMI) ; Mamonov, Alexander (RFNC-VNIIEF, Sarov) ; Manko, Vladislav (Kurchatov Inst., Moscow) ; Manso, Franck (Clermont-Ferrand U.) ; Manzari, Vito (INFN, Bari) ; Mao, Yaxian (Hua-Zhong Normal U.) ; Marchisone, Massimiliano (Turin U.INFN, Turin) ; Mares, Jiri (Prague, Inst. Phys.) ; Margagliotti, Giacomo Vito (Trieste U.INFN, Trieste) ; Margotti, Anselmo (INFN, Bologna) ; Margutti, Jacopo (Utrecht U.) ; Marin, Ana Maria (Darmstadt, EMMI) ; Markert, Christina (Texas U.) ; Marquard, Marco (Frankfurt U., Inst. Kernphys.) ; Martin, Nicole Alice (Darmstadt, EMMI) ; Martinengo, Paolo (CERN) ; Martinez Hernandez, Mario Ivan (Puebla U., Mexico) ; Martinez-Garcia, Gines (SUBATECH, Nantes) ; Martinez Pedreira, Miguel (CERN) ; Mas, Alexis Jean-Michel (Sao Paulo U.) ; Masciocchi, Silvia (Darmstadt, EMMI) ; Masera, Massimo (Turin U.INFN, Turin) ; Masoni, Alberto (INFN, Cagliari) ; Mastroserio, Annalisa (Bari U.INFN, Bari) ; Matyja, Adam Tomasz (Cracow, INP) ; Mayer, Christoph (Cracow, INP) ; Mazer, Joel Anthony (Tennessee U.) ; Mazzilli, Marianna (Bari U.INFN, Bari) ; Mazzoni, Alessandra Maria (INFN, Rome) ; Mcdonald, Daniel (Houston U.) ; Meddi, Franco (Rome U.INFN, Rome) ; Melikyan, Yuri (Moscow Phys. Eng. Inst.) ; Menchaca-Rocha, Arturo Alejandro (Mexico U.) ; Meninno, Elisa (Salerno U.INFN, Salerno) ; Mercado-Perez, Jorge (Heidelberg U.) ; Meres, Michal (Comenius U.) ; Mhlanga, Sibaliso (Cape Town U.) ; Miake, Yasuo (Tsukuba U.) ; Mieskolainen, Matti Mikael (Helsinki Inst. of Phys.) ; Mikhaylov, Konstantin (Dubna, JINR) ; Milano, Leonardo (CERN) ; Milosevic, Jovan (Oslo U.) ; Mischke, Andre (Utrecht U.) ; Mishra, Aditya Nath (Indian Inst. Tech., Indore) ; Mishra, Tribeni (Bhubaneswar, Inst. Phys.) ; Miskowiec, Dariusz Czeslaw (Darmstadt, EMMI) ; Mitra, Jubin (Calcutta, VECC) ; Mitu, Ciprian Mihai (Bucharest, Inst. 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Studies) ; Nandi, Basanta Kumar (Indian Inst. Tech., Mumbai) ; Nania, Rosario (INFN, Bologna) ; Nappi, Eugenio (INFN, Bari) ; Naru, Muhammad Umair (COMSATS, Islamabad) ; Ferreira Natal Da Luz, Pedro Hugo (Sao Paulo U.) ; Nattrass, Christine (Tennessee U.) ; Rosado Navarro, Sebastian (Puebla U., Mexico) ; Nayak, Kishora (Bhubaneswar, NISER) ; Nayak, Ranjit (Indian Inst. Tech., Mumbai) ; Nayak, Tapan Kumar (Calcutta, VECC) ; Nazarenko, Sergey (RFNC-VNIIEF, Sarov) ; Nedosekin, Alexander (Moscow, ITEP) ; Negrao De Oliveira, Renato Aparecido (CERN) ; Nellen, Lukas (Mexico U., ICN) ; Ng, Fabian (Houston U.) ; Nicassio, Maria (Darmstadt, EMMI) ; Niculescu, Mihai (Bucharest, Inst. Space Science) ; Niedziela, Jeremi (CERN) ; Nielsen, Borge Svane (Bohr Inst.) ; Nikolaev, Sergey (Kurchatov Inst., Moscow) ; Nikulin, Sergey (Kurchatov Inst., Moscow) ; Nikulin, Vladimir (St. Petersburg, INP) ; Noferini, Francesco (Enrico Fermi Ctr., Rome) ; Nomokonov, Petr (Dubna, JINR) ; Nooren, Gerardus (Utrecht U.) ; Cabanillas Noris, Juan Carlos (Puebla U., Mexico) ; Norman, Jaime (Liverpool U.) ; Nyanin, Alexander (Kurchatov Inst., Moscow) ; Nystrand, Joakim Ingemar (Bergen U.) ; Oeschler, Helmut Oskar (Heidelberg U.) ; Oh, Saehanseul (Yale U.) ; Oh, Sun Kun (Konkuk U.) ; Ohlson, Alice Elisabeth (CERN) ; Okatan, Ali (Karatay U.) ; Okubo, Tsubasa (Hiroshima U.) ; Oleniacz, Janusz (Warsaw U. of Tech.) ; Oliveira Da Silva, Antonio Carlos (Sao Paulo U.) ; Oliver, Michael Henry (Yale U.) ; Onderwaater, Jacobus (Darmstadt, EMMI) ; Oppedisano, Chiara (INFN, Turin) ; Orava, Risto (Helsinki Inst. of Phys.) ; Oravec, Matej (Kosice Tech. 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Tech., Indore) ; Park, Woojin (Darmstadt, EMMI) ; Parmar, Sonia (Panjab U.) ; Passfeld, Annika (Munster U.) ; Paticchio, Vincenzo (INFN, Bari) ; Patra, Rajendra Nath (Calcutta, VECC) ; Paul, Biswarup (INFN, Turin) ; Pei, Hua (Hua-Zhong Normal U.) ; Peitzmann, Thomas (Utrecht U.) ; Peng, Xinye (Hua-Zhong Normal U.) ; Pereira Da Costa, Hugo Denis Antonio (IRFU, Saclay) ; Peresunko, Dmitry Yurevich (Moscow Phys. Eng. Inst.) ; Perez Lezama, Edgar (Frankfurt U., Inst. Kernphys.) ; Peskov, Vladimir (Frankfurt U., Inst. Kernphys.) ; Pestov, Yury (Novosibirsk, IYF) ; Petracek, Vojtech (Prague, Tech. U.) ; Petrov, Viacheslav (Serpukhov, IHEP) ; Petrovici, Mihai (Bucharest, IFIN-HH) ; Petta, Catia (Catania U.INFN, Catania) ; Piano, Stefano (INFN, Trieste) ; Pikna, Miroslav (Comenius U.) ; Pillot, Philippe (SUBATECH, Nantes) ; Ozelin De Lima Pimentel, Lais (Bohr Inst.) ; Pinazza, Ombretta (CERN) ; Pinsky, Lawrence (Houston U.) ; Piyarathna, Danthasinghe (Houston U.) ; Ploskon, Mateusz Andrzej (LBL, Berkeley) ; Planinic, Mirko (Zagreb U.) ; Pluta, Jan Marian (Warsaw U. of Tech.) ; Pochybova, Sona (Wigner RCP, Budapest) ; Podesta Lerma, Pedro Luis Manuel (Sinaloa U.) ; Poghosyan, Martin (Oak Ridge) ; Polishchuk, Boris (Serpukhov, IHEP) ; Poljak, Nikola (Zagreb U.) ; Poonsawat, Wanchaloem (Suranaree U. of Tech.) ; Pop, Amalia (Bucharest, IFIN-HH) ; Poppenborg, Hendrik (Munster U.) ; Porteboeuf, Sarah Julie (Clermont-Ferrand U.) ; Porter, R Jefferson (LBL, Berkeley) ; Pospisil, Jan (Rez, Nucl. Phys. Inst.) ; Prasad, Sidharth Kumar (Bose Inst., Kolkata@@@CAPSS, Kolkata) ; Preghenella, Roberto (CERN) ; Prino, Francesco (INFN, Turin) ; Pruneau, Claude Andre (Wayne State U.) ; Pshenichnov, Igor (Moscow, INR) ; Puccio, Maximiliano (Turin U.INFN, Turin) ; Puddu, Giovanna (Cagliari U.INFN, Cagliari) ; Pujahari, Prabhat Ranjan (Wayne State U.) ; Punin, Valery (RFNC-VNIIEF, Sarov) ; Putschke, Jorn Henning (Wayne State U.) ; Qvigstad, Henrik (Oslo U.) ; Rachevski, Alexandre (INFN, Trieste) ; Raha, Sibaji (Bose Inst., Kolkata@@@CAPSS, Kolkata) ; Rajput, Sonia (Jammu U.) ; Rak, Jan (Jyvaskyla U.) ; Rakotozafindrabe, Andry Malala (IRFU, Saclay) ; Ramello, Luciano (Piemonte Orientale U., Alessandria) ; Rami, Fouad (Strasbourg, IPHC) ; Raniwala, Rashmi (Rajasthan U.) ; Raniwala, Sudhir (Rajasthan U.) ; Rasanen, Sami Sakari (Helsinki Inst. of Phys.) ; Rascanu, Bogdan Theodor (Frankfurt U., Inst. Kernphys.) ; Rathee, Deepika (Panjab U.) ; Ravasenga, Ivan (Turin U.INFN, Turin) ; Read, Kenneth Francis (Oak Ridge) ; Redlich, Krzysztof (Warsaw, Inst. Nucl. Studies) ; Reed, Rosi Jan (Wayne State U.) ; Rehman, Attiq Ur (Bergen U.) ; Reichelt, Patrick Simon (Frankfurt U., Inst. Kernphys.) ; Reidt, Felix (Heidelberg U.) ; Ren, Xiaowen (Hua-Zhong Normal U.) ; Renfordt, Rainer Arno Ernst (Frankfurt U., Inst. Kernphys.) ; Reolon, Anna Rita (Frascati) ; Reshetin, Andrey (Moscow, INR) ; Reygers, Klaus Johannes (Heidelberg U.) ; Riabov, Viktor (St. Petersburg, INP) ; Ricci, Renato Angelo (INFN, Legnaro) ; Richert, Tuva Ora Herenui (Lund U.) ; Richter, Matthias Rudolph (Oslo U.) ; Riedler, Petra (CERN) ; Riegler, Werner (CERN) ; Riggi, Francesco (Catania U.INFN, Catania) ; Ristea, Catalin-Lucian (Bucharest, Inst. Space Science) ; Rodriguez Cahuantzi, Mario (Puebla U., Mexico) ; Rodriguez Manso, Alis (NIKHEF, Amsterdam) ; Roeed, Ketil (Oslo U.) ; Rogochaya, Elena (Dubna, JINR) ; Rohr, David Michael (Frankfurt U., FIAS) ; Roehrich, Dieter (Bergen U.) ; Ronchetti, Federico (Frascati) ; Ronflette, Lucile (SUBATECH, Nantes) ; Rosnet, Philippe (Clermont-Ferrand U.) ; Rossi, Andrea (Padua U.INFN, Padua) ; Roukoutakis, Filimon (Athens U.) ; Roy, Ankhi (Indian Inst. Tech., Indore) ; Roy, Christelle Sophie (Strasbourg, IPHC) ; Roy, Pradip Kumar (Saha Inst.) ; Rubio Montero, Antonio Juan (Madrid, CIEMAT) ; Rui, Rinaldo (Trieste U.INFN, Trieste) ; Russo, Riccardo (Turin U.INFN, Turin) ; Ryabinkin, Evgeny (Kurchatov Inst., Moscow) ; Ryabov, Yury (St. Petersburg, INP) ; Rybicki, Andrzej (Cracow, INP) ; Saarinen, Sampo (Helsinki Inst. of Phys.) ; Sadhu, Samrangy (Calcutta, VECC) ; Sadovskiy, Sergey (Serpukhov, IHEP) ; Safarik, Karel (CERN) ; Sahlmuller, Baldo (Frankfurt U., Inst. Kernphys.) ; Sahoo, Pragati (Indian Inst. Tech., Indore) ; Sahoo, Raghunath (Indian Inst. Tech., Indore) ; Sahoo, Sarita (Bhubaneswar, Inst. Phys.) ; Sahu, Pradip Kumar (Bhubaneswar, Inst. Phys.) ; Saini, Jogender (Calcutta, VECC) ; Sakai, Shingo (Frascati) ; Saleh, Mohammad Ahmad (Wayne State U.) ; Salzwedel, Jai Samuel Nielsen (Ohio State U.) ; Sambyal, Sanjeev Singh (Jammu U.) ; Samsonov, Vladimir (Moscow Phys. Eng. Inst.) ; Sandor, Ladislav (Kosice, IEF) ; Sandoval, Andres (Mexico U.) ; Sano, Masato (Tsukuba U.) ; Sarkar, Debojit (Calcutta, VECC) ; Sarkar, Nachiketa (Calcutta, VECC) ; Sarma, Pranjal (Gauhati U.) ; Scapparone, Eugenio (INFN, Bologna) ; Scarlassara, Fernando (Padua U.INFN, Padua) ; Schiaua, Claudiu Cornel (Bucharest, IFIN-HH) ; Schicker, Rainer Martin (Heidelberg U.) ; Schmidt, Christian Joachim (Darmstadt, EMMI) ; Schmidt, Hans Rudolf (U. Tubingen) ; Schmidt, Martin (U. Tubingen) ; Schuchmann, Simone (Heidelberg U.) ; Schukraft, Jurgen (CERN) ; Schutz, Yves Roland (SUBATECH, Nantes) ; Schwarz, Kilian Eberhard (Darmstadt, EMMI) ; Schweda, Kai Oliver (Darmstadt, EMMI) ; Scioli, Gilda (Bologna U.INFN, Bologna) ; Scomparin, Enrico (INFN, Turin) ; Scott, Rebecca Michelle (Tennessee U.) ; Sefcik, Michal (Kosice U.) ; Seger, Janet Elizabeth (Creighton U.) ; Sekiguchi, Yuko (Tokyo U.) ; Sekihata, Daiki (Hiroshima U.) ; Selyuzhenkov, Ilya (Darmstadt, EMMI) ; Senosi, Kgotlaesele (iThemba LABS) ; Senyukov, Serhiy (CERN) ; Serradilla Rodriguez, Eulogio (Mexico U.) ; Sevcenco, Adrian (Bucharest, Inst. Space Science) ; Shabanov, Arseniy (Moscow, INR) ; Shabetai, Alexandre (SUBATECH, Nantes) ; Shadura, Oksana (BITP, Kiev) ; Shahoyan, Ruben (CERN) ; Shangaraev, Artem (Serpukhov, IHEP) ; Sharma, Ankita (Jammu U.) ; Sharma, Mona (Jammu U.) ; Sharma, Monika (Jammu U.) ; Sharma, Natasha (Tennessee U.) ; Sheikh, Ashik Ikbal (Calcutta, VECC) ; Shigaki, Kenta (Hiroshima U.) ; Shou, Qiye (Hua-Zhong Normal U.) ; Shtejer Diaz, Katherin (Turin U.INFN, Turin) ; Sibiryak, Yury (Kurchatov Inst., Moscow) ; Siddhanta, Sabyasachi (INFN, Cagliari) ; Sielewicz, Krzysztof Marek (CERN) ; Siemiarczuk, Teodor (Warsaw, Inst. Nucl. Studies) ; Silvermyr, David Olle Rickard (Lund U.) ; Silvestre, Catherine Micaela (LPSC, Grenoble) ; Simatovic, Goran (Zagreb U.) ; Simonetti, Giuseppe (CERN) ; Singaraju, Rama Narayana (Calcutta, VECC) ; Singh, Ranbir (Bhubaneswar, NISER) ; Singhal, Vikas (Calcutta, VECC) ; Sarkar - Sinha, Tinku (Saha Inst.) ; Sitar, Branislav (Comenius U.) ; Sitta, Mario (Piemonte Orientale U., Alessandria) ; Skaali, Bernhard (Oslo U.) ; Slupecki, Maciej (Jyvaskyla U.) ; Smirnov, Nikolai (Yale U.) ; Snellings, Raimond (Utrecht U.) ; Snellman, Tomas Wilhelm (Jyvaskyla U.) ; Song, Jihye (Pusan Natl. U.) ; Song, Myunggeun (Yonsei U.) ; Song, Zixuan (Hua-Zhong Normal U.) ; Soramel, Francesca (Padua U.INFN, Padua) ; Sorensen, Soren Pontoppidan (Tennessee U.) ; Sozzi, Federica (Darmstadt, EMMI) ; Spiriti, Eleuterio (Frascati) ; Sputowska, Iwona Anna (Cracow, INP) ; Spyropoulou-Stassinaki, Martha (Athens U.) ; Stachel, Johanna (Heidelberg U.) ; Stan, Ionel (Bucharest, Inst. Space Science) ; Stankus, Paul (Oak Ridge) ; Stenlund, Evert Anders (Lund U.) ; Steyn, Gideon Francois (iThemba LABS) ; Stiller, Johannes Hendrik (Heidelberg U.) ; Stocco, Diego (SUBATECH, Nantes) ; Strmen, Peter (Comenius U.) ; Alarcon Do Passo Suaide, Alexandre (Sao Paulo U.) ; Sugitate, Toru (Hiroshima U.) ; Suire, Christophe Pierre (Orsay, IPN) ; Suleymanov, Mais Kazim Oglu (COMSATS, Islamabad) ; Suljic, Miljenko (Trieste U.INFN, Trieste) ; Sultanov, Rishat (Moscow, ITEP) ; Sumbera, Michal (Rez, Nucl. Phys. Inst.) ; Sumowidagdo, Suharyo (Jakarta LIPI, Indonesian Inst. Sci.) ; Swain, Sagarika (Bhubaneswar, Inst. Phys.) ; Szabo, Alexander (Comenius U.) ; Szarka, Imrich (Comenius U.) ; Szczepankiewicz, Adam (Warsaw U. of Tech.) ; Szymanski, Maciej Pawel (Warsaw U. of Tech.) ; Tabassam, Uzma (COMSATS, Islamabad) ; Takahashi, Jun (Campinas State U.) ; Tambave, Ganesh Jagannath (Bergen U.) ; Tanaka, Naoto (Tsukuba U.) ; Tarhini, Mohamad (Orsay, IPN) ; Tariq, Mohammad (Aligarh Muslim U.) ; Tarzila, Madalina-Gabriela (Bucharest, IFIN-HH) ; Tauro, Arturo (CERN) ; Tejeda Munoz, Guillermo (Puebla U., Mexico) ; Telesca, Adriana (CERN) ; Terasaki, Kohei (Tokyo U.) ; Terrevoli, Cristina (Padua U.INFN, Padua) ; Teyssier, Boris (Lyon, IPN) ; Thaeder, Jochen Mathias (LBL, Berkeley) ; Thakur, Dhananjaya (Indian Inst. Tech., Indore) ; Thomas, Deepa (Texas U.) ; Tieulent, Raphael Noel (Lyon, IPN) ; Tikhonov, Anatoly (Moscow, INR) ; Timmins, Anthony Robert (Houston U.) ; Toia, Alberica (Frankfurt U., Inst. Kernphys.) ; Trogolo, Stefano (Turin U.INFN, Turin) ; Trombetta, Giuseppe (Bari U.INFN, Bari) ; Trubnikov, Victor (BITP, Kiev) ; Trzaska, Wladyslaw Henryk (Jyvaskyla U.) ; Tsuji, Tomoya (Tokyo U.) ; Tumkin, Alexandr (RFNC-VNIIEF, Sarov) ; Turrisi, Rosario (INFN, Padua) ; Tveter, Trine Spedstad (Oslo U.) ; Ullaland, Kjetil (Bergen U.) ; Uras, Antonio (Lyon, IPN) ; Usai, Gianluca (Cagliari U.INFN, Cagliari) ; Utrobicic, Antonija (Zagreb U.) ; Vala, Martin (Kosice, IEF) ; Valencia Palomo, Lizardo (Clermont-Ferrand U.) ; Van Der Maarel, Jasper (Utrecht U.) ; Van Hoorne, Jacobus Willem (Stefan Meyer Inst. Subatomare Phys.) ; Van Leeuwen, Marco (Utrecht U.) ; Vanat, Tomas (Rez, Nucl. Phys. Inst.) ; Vande Vyvre, Pierre (CERN) ; Varga, Dezso (Wigner RCP, Budapest) ; Diozcora Vargas Trevino, Aurora (Puebla U., Mexico) ; Vargyas, Marton (Jyvaskyla U.) ; Varma, Raghava (Indian Inst. Tech., Mumbai) ; Vasileiou, Maria (Athens U.) ; Vasiliev, Andrey (Kurchatov Inst., Moscow) ; Vauthier, Astrid (LPSC, Grenoble) ; Vazquez Doce, Oton (Excel. Cluster Universe, Munich) ; Vechernin, Vladimir (St. Petersburg State U.) ; Veen, Annelies Marianne (Utrecht U.) ; Velure, Arild (Bergen U.) ; Vercellin, Ermanno (Turin U.INFN, Turin) ; Vergara Limon, Sergio (Puebla U., Mexico) ; Vernet, Renaud (CC, Villeurbanne) ; Vickovic, Linda (Split Tech. 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U.) ; Yoon, Jin Hee (Inha U.) ; Yurchenko, Volodymyr (BITP, Kiev) ; Zaborowska, Anna (Warsaw U. of Tech.) ; Zaccolo, Valentina (Bohr Inst.) ; Zaman, Ali (COMSATS, Islamabad) ; Zampolli, Chiara (CERN) ; Correia Zanoli, Henrique Jose (Sao Paulo U.) ; Zaporozhets, Sergey (Dubna, JINR) ; Zardoshti, Nima (Birmingham U.) ; Zarochentsev, Andrey (St. Petersburg State U.) ; Zavada, Petr (Prague, Inst. Phys.) ; Zavyalov, Nikolay (RFNC-VNIIEF, Sarov) ; Zbroszczyk, Hanna Paulina (Warsaw U. of Tech.) ; Zgura, Sorin Ion (Bucharest, Inst. Space Science) ; Zhalov, Mikhail (St. Petersburg, INP) ; Zhang, Haitao (Hua-Zhong Normal U.) ; Zhang, Xiaoming (Hua-Zhong Normal U.) ; Zhang, Yonghong (Hua-Zhong Normal U.) ; Chunhui, Zhang (Utrecht U.) ; Zhang, Zuman (Hua-Zhong Normal U.) ; Zhao, Chengxin (Oslo U.) ; Zhigareva, Natalia (Moscow, ITEP) ; Zhou, Daicui (Hua-Zhong Normal U.) ; Zhou, You (Bohr Inst.) ; Zhou, Zhuo (Bergen U.) ; Zhu, Hongsheng (Hua-Zhong Normal U.) ; Zhu, Jianhui (SUBATECH, Nantes) ; Zichichi, Antonino (Enrico Fermi Ctr., Rome) ; Zimmermann, Alice (Heidelberg U.) ; Zimmermann, Markus Bernhard (CERN) ; Zinovjev, Gennady (BITP, Kiev) ; Zyzak, Maksym (Frankfurt U., FIAS)

Pages: 17

Abstract: The yields of strange (${\rm K}^{0}_{S}$, $\Lambda$, $\bar{\Lambda}$) and multi-strange ($\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, $\bar{\Omega}^{+}$) hadrons are measured at midrapidity in proton-proton (pp) collisions at $\sqrt{s}$ = 7 TeV as a function of the charged-particle multiplicity density (${\rm d}N_{\rm ch}/{\rm d}\eta$).The production rate of strange particles increases faster than that of non-strange hadrons, leading to an enhancement of strange particles relative to pions, similar to that found in nucleus-nucleus collisions as well as in proton-nucleus collisions at the LHC. This is the first observation of an enhanced production of strange particles in high-multiplicity pp collisions. The magnitude of this strangeness enhancement increases with the event activity, quantified by ${\rm d}N_{\rm ch}/{\rm d}\eta$, and with hadron strangeness. It reaches almost a factor of two for the $\Omega$ at the highest multiplicity presented. No enhancement is observed for particles with no strange quark content, demonstrating that the observed effect is strangeness rather than mass related. The results are not reproduced by any of the Monte Carlo models commonly used at the LHC, suggesting that further developments are needed for a complete microscopic understanding of strangeness production and indicating the presence of a phenomenon novel in high-multiplicity pp collisions.

Web-Page: http://inspirehep.net/record/1471838/files/bmratios.png; http://inspirehep.net/record/1471838/files/scaling.png; http://inspirehep.net/record/1471838/files/ratios.png; http://inspirehep.net/record/1471838/files/spectra.png; http://inspirehep.net/record/1471838/files/arXiv:1606.07424.pdf


Note: *Temporary entry*; 17 pages, 4 captioned figures, 1 tables, authors from page 12, figures at http://aliceinfo.cern.ch/ArtSubmission/node/2929

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