/ hep-ex FERMILAB-PUB-13-329-E


Measurement of associated production of Z bosons with charm quark jets in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV


Abazov, Victor Mukhamedovich (Dubna, JINR) ; Abbott, Braden Keim (Oklahoma U.) ; Acharya, Bannanje Sripath (Tata Inst.) ; Adams, Mark Raymond (Illinois U., Chicago) ; Adams, Todd (Florida State U.) ; Agnew, James P (Manchester U.) ; Alexeev, Guennadi D (Dubna, JINR) ; Alkhazov, Georgiy D (St. Petersburg, INP) ; Alton, Andrew K (Michigan U.) ; Askew, Andrew Warren (Florida State U.) ; Atkins, Scott (Louisiana Tech. U.) ; Augsten, Kamil (Prague, Tech. U.) ; Avila, Carlos A (Andes U., Bogota) ; Badaud, Frederique (Clermont-Ferrand U.) ; Bagby, Linda F (Fermilab) ; Baldin, Boris (Fermilab) ; Bandurin, Dmitry V (Florida State U.) ; Banerjee, Sunanda (Tata Inst.) ; Barberis, Emanuela (Northeastern U.) ; Baringer, Philip S (Kansas U.) ; Bartlett, JFrederick (Fermilab) ; Bassler, Ursula Rita (IRFU, SPP, Saclay) ; Bazterra, Victor (Illinois U., Chicago) ; Bean, Alice L (Kansas U.) ; Begalli, Marcia (Rio de Janeiro State U.) ; Bellantoni, Leo (Fermilab) ; Beri, Suman B (Panjab U.) ; Bernardi, Gregorio (Paris U., VI-VII) ; Bernhard, Ralf Patrick (Freiburg U.) ; Bertram, Iain A (Lancaster U.) ; Besancon, Marc (IRFU, SPP, Saclay) ; Beuselinck, Raymond (Imperial Coll., London) ; Bhat, Pushpalatha C (Fermilab) ; Bhatia, Sudeep (Mississippi U.) ; Bhatnagar, Vipin (Panjab U.) ; Blazey, Gerald Charles (Northern Illinois U.) ; Blessing, Susan K (Florida State U.) ; Bloom, Kenneth A (Nebraska U.) ; Boehnlein, Amber S (Fermilab) ; Boline, Daniel Dooley (SUNY, Stony Brook) ; Boos, Edward E (Moscow State U.) ; Borissov, Guennadi (Lancaster U.) ; Brandt, Andrew (Texas U., Arlington) ; Brandt, Oleg (Gottingen U., II. Phys. Inst.) ; Brock, Raymond L (Michigan State U.) ; Bross, Alan D (Fermilab) ; Brown, Duncan Paul (Paris U., VI-VII) ; Bu, Xue-Bing (Fermilab) ; Buehler, Marc (Fermilab) ; Buescher, Volker (Mainz U., Inst. Phys.) ; Bunichev, Viacheslav Yevgenyevich (Moscow State U.) ; Burdin, Sergey (Lancaster U.) ; Buszello, Claus Peter (Uppsala U.) ; Camacho-Perez, Enrique (CINVESTAV, IPN) ; Casey, Brendan Cameron Kieran (Fermilab) ; Castilla-Valdez, Heriberto (CINVESTAV, IPN) ; Caughron, Seth Aaron (Michigan State U.) ; Chakrabarti, Subhendu (SUNY, Stony Brook) ; Chan, Kwok Ming Leo (Notre Dame U.) ; Chandra, Avdhesh (Rice U.) ; Chapon, Emilien (IRFU, SPP, Saclay) ; Chen, Guo (Kansas U.) ; Cho, Sung-Woong (Korea U., KODEL) ; Choi, Suyong (Korea U., KODEL) ; Choudhary, Brajesh C (Delhi U.) ; Cihangir, Selcuk (Fermilab) ; Claes, Daniel R (Nebraska U.) ; Clutter, Justace Randall (Kansas U.) ; Cooke, Michael P (Fermilab) ; Cooper, William Edward (Fermilab) ; Corcoran, Marjorie D (Rice U.) ; Couderc, Fabrice (IRFU, SPP, Saclay) ; Cousinou, Marie-Claude (Marseille, CPPM) ; Cutts, David (Brown U.) ; Das, Amitabha (Arizona U.) ; Davies, Gavin John (Imperial Coll., London) ; de Jong, Sijbrand Jan (NIKHEF, Amsterdam) ; De La Cruz-Burelo, Eduard (CINVESTAV, IPN) ; Deliot, Frederic (IRFU, SPP, Saclay) ; Demina, Regina (Rochester U.) ; Denisov, Dmitri S (Fermilab) ; Denisov, Sergei P (Serpukhov, IHEP) ; Desai, Satish Vijay (Fermilab) ; Deterre, Cecile (Gottingen U., II. Phys. Inst.) ; DeVaughan, Kayle Otis (Nebraska U.) ; Diehl, HThomas (Fermilab) ; Diesburg, Michael (Fermilab) ; Ding, Pengfei (Manchester U.) ; Dominguez, D. Aaron M. (Nebraska U.) ; Dubey, Abhinav Kumar (Delhi U.) ; Dudko, Lev V (Moscow State U.) ; Duperrin, Arnaud (Marseille, CPPM) ; Dutt, Suneel (Panjab U.) ; Eads, Michael T (Northern Illinois U.) ; Edmunds, Daniel L (Michigan State U.) ; Ellison, John A (UC, Riverside) ; Elvira, VDaniel (Fermilab) ; Enari, Yuji (Paris U., VI-VII) ; Evans, Harold G (Indiana U.) ; Evdokimov, Valeri N (Serpukhov, IHEP) ; Feng, Lei (Northern Illinois U.) ; Ferbel, Thomas (Rochester U.) ; Fiedler, Frank (Mainz U., Inst. Phys.) ; Filthaut, Frank (NIKHEF, Amsterdam) ; Fisher, Wade Cameron (Michigan State U.) ; Fisk, HEugene (Fermilab) ; Fortner, Michael R (Northern Illinois U.) ; Fox, Harald (Lancaster U.) ; Fuess, Stuart C (Fermilab) ; Garcia-Bellido, Aran (Rochester U.) ; Garcia-Gonzalez, Jose Andres (CINVESTAV, IPN) ; Gavrilov, Vladimir B (Moscow, ITEP) ; Geng, Weigang (Marseille, CPPM) ; Gerber, Cecilia Elena (Illinois U., Chicago) ; Gershtein, Yuri S (Rutgers U., Piscataway) ; Ginther, George E (Fermilab) ; Golovanov, Georgy Anatolievich (Dubna, JINR) ; Grannis, Paul D (SUNY, Stony Brook) ; Greder, Sebastien (Strasbourg, IPHC) ; Greenlee, Herbert B (Fermilab) ; Grenier, Gerald Jean (Lyon U.) ; Gris, Phillipe Luc (Clermont-Ferrand U.) ; Grivaz, Jean-Francois (Orsay, LAL) ; Grohsjean, Alexander (IRFU, SPP, Saclay) ; Gruenendahl, Stefan (Fermilab) ; Gruenewald, Martin Werner (University Coll., Dublin) ; Guillemin, Thibault (Orsay, LAL) ; Gutierrez, Gaston R (Fermilab) ; Gutierrez, Phillip (Oklahoma U.) ; Haley, Joseph Glenn Biddle (Northeastern U.) ; Han, Liang (Hefei, CUST) ; Harder, Kristian (Manchester U.) ; Harel, Amnon (Rochester U.) ; Hauptman, John Michael (Iowa State U.) ; Hays, Jonathan M (Imperial Coll., London) ; Head, Tim (Manchester U.) ; Hebbeker, Thomas (Aachen, Tech. Hochsch.) ; Hedin, David R (Northern Illinois U.) ; Hegab, Hatim (Oklahoma State U.) ; Heinson, Ann (UC, Riverside) ; Heintz, Ulrich (Brown U.) ; Hensel, Carsten (Gottingen U., II. Phys. Inst.) ; Heredia-De La Cruz, Ivan (CINVESTAV, IPN) ; Herner, Kenneth Richard (Fermilab) ; Hesketh, Gavin G (Manchester U.) ; Hildreth, Michael D (Notre Dame U.) ; Hirosky, Robert James (Virginia U.) ; Hoang, Trang (Florida State U.) ; Hobbs, John D (SUNY, Stony Brook) ; Hoeneisen, Bruce (San Francisco de Quito U.) ; Hogan, Julie (Rice U.) ; Hohlfeld, Mark (Mainz U., Inst. Phys.) ; Holzbauer, Jenny Lyn (Mississippi U.) ; Howley, Ian James (Texas U., Arlington) ; Hubacek, Zdenek (Prague, Tech. U.) ; Hynek, Vlastislav (Prague, Tech. U.) ; Iashvili, Ia (SUNY, Buffalo) ; Ilchenko, Yuriy (Southern Methodist U.) ; Illingworth, Robert A (Fermilab) ; Ito, Albert S (Fermilab) ; Jabeen, Shabnam (Brown U.) ; Jaffre, Michel J (Orsay, LAL) ; Jayasinghe, Ayesh (Oklahoma U.) ; Jeong, Min-Soo (Korea U., KODEL) ; Jesik, Richard L (Imperial Coll., London) ; Jiang, Peng (Hefei, CUST) ; Johns, Kenneth Arthur (Arizona U.) ; Johnson, Emily (Michigan State U.) ; Johnson, Marvin E (Fermilab) ; Jonckheere, Alan M (Fermilab) ; Jonsson, Per Martin (Imperial Coll., London) ; Joshi, Jyoti (UC, Riverside) ; Jung, Andreas Werner (Fermilab) ; Juste, Aurelio (Barcelona, IFAE) ; Kajfasz, Eric (Marseille, CPPM) ; Karmanov, Dmitriy Y (Moscow State U.) ; Katsanos, Ioannis (Nebraska U.) ; Kehoe, Robert Leo Patrick (Southern Methodist U.) ; Kermiche, Smain (Marseille, CPPM) ; Khalatyan, Norayr (Fermilab) ; Khanov, Alexander (Oklahoma State U.) ; Kharchilava, Avto (SUNY, Buffalo) ; Kharzheev, Yuri N (Dubna, JINR) ; Kiselevich, Ivan Lvovich (Moscow, ITEP) ; Kohli, Jatinder M (Panjab U.) ; Kozelov, Alexander V (Serpukhov, IHEP) ; Kraus, James Alexander (Mississippi U.) ; Kumar, Ashish (SUNY, Buffalo) ; Kupco, Alexander (Prague, Inst. Phys.) ; Kurca, Tibor (Lyon U.) ; Kuzmin, Valentin Alexandrovich (Moscow State U.) ; Lammers, Sabine Wedam (Indiana U.) ; Lebrun, Patrice (Lyon U.) ; Lee, Hyun-Su (Korea U., KODEL) ; Lee, Seh-Wook (Iowa State U.) ; Lee, William M (Florida State U.) ; Lei, Xiaowen (Arizona U.) ; Lellouch, Jeremie (Paris U., VI-VII) ; Li, Dikai (Paris U., VI-VII) ; Li, Hengne (Virginia U.) ; Li, Liang (UC, Riverside) ; Li, Qi-Zhong (Fermilab) ; Lim, Jeong Ku (Korea U., KODEL) ; Lincoln, Donald W (Fermilab) ; Linnemann, James Thomas (Michigan State U.) ; Lipaev, Vladimir V (Serpukhov, IHEP) ; Lipton, Ronald J (Fermilab) ; Liu, Huanzhao (Southern Methodist U.) ; Liu, Yanwen (Hefei, CUST) ; Lobodenko, Alexandre (St. Petersburg, INP) ; Lokajicek, Milos (Prague, Inst. Phys.) ; Lopes de Sa, Rafael (SUNY, Stony Brook) ; Luna-Garcia, Rene (CINVESTAV, IPN) ; Lyon, Adam Leonard (Fermilab) ; Maciel, Arthur KA (Rio de Janeiro, CBPF) ; Madar, Romain (Freiburg U.) ; Magana-Villalba, Ricardo (CINVESTAV, IPN) ; Malik, Sudhir (Nebraska U.) ; Malyshev, Vladimir L (Dubna, JINR) ; Mansour, Jason (Gottingen U., II. Phys. Inst.) ; Martinez-Ortega, Jorge (CINVESTAV, IPN) ; McCarthy, Robert L (SUNY, Stony Brook) ; Mcgivern, Carrie Lynne (Manchester U.) ; Meijer, Melvin M (NIKHEF, Amsterdam) ; Melnitchouk, Alexander S (Fermilab) ; Menezes, Diego D (Northern Illinois U.) ; Mercadante, Pedro Galli (ABC Federal U.) ; Merkin, Mikhail M (Moscow State U.) ; Meyer, Arnd (Aachen, Tech. Hochsch.) ; Meyer, Jorg Manfred (Gottingen U., II. Phys. Inst.) ; Miconi, Florian (Strasbourg, IPHC) ; Mondal, Naba K (Tata Inst.) ; Mulhearn, Michael James (Virginia U.) ; Nagy, Elemer (Marseille, CPPM) ; Narain, Meenakshi (Brown U.) ; Nayyar, Ruchika (Arizona U.) ; Neal, Homer A (Michigan U.) ; Negret, Juan Pablo (Andes U., Bogota) ; Neustroev, Petr V (St. Petersburg, INP) ; Nguyen, Huong Thi (Virginia U.) ; Nunnemann, Thomas P (Munich U.) ; Orduna, Jose de Jesus Hernandez (Rice U.) ; Osman, Nicolas Ahmed (Marseille, CPPM) ; Osta, Jyotsna (Notre Dame U.) ; Pal, Arnab (Texas U., Arlington) ; Parashar, Neeti (Purdue U., Calumet) ; Parihar, Vivek (Brown U.) ; Park, Sung Keun (Korea U., KODEL) ; Partridge, Richard A (Brown U.) ; Parua, Nirmalya (Indiana U.) ; Patwa, Abid (Brookhaven) ; Penning, Bjoern (Fermilab) ; Perfilov, Maxim Anatolyevich (Moscow State U.) ; Peters, Reinhild Yvonne Fatima (Gottingen U., II. Phys. Inst.) ; Petridis, Konstantinos (Manchester U.) ; Petrillo, Gianluca (Rochester U.) ; Petroff, Pierre (Orsay, LAL) ; Pleier, Marc-Andre (Brookhaven) ; Podstavkov, Vladimir M (Fermilab) ; Popov, Alexey V (Serpukhov, IHEP) ; Prewitt, Michelle (Rice U.) ; Price, Darren (Indiana U.) ; Prokopenko, Nikolay N (Serpukhov, IHEP) ; Qian, Jianming (Michigan U.) ; Quadt, Arnulf (Gottingen U., II. Phys. Inst.) ; Quinn, Brian P (Mississippi U.) ; Ratoff, Peter N (Lancaster U.) ; Razumov, Ivan A (Serpukhov, IHEP) ; Ripp-Baudot, Isabelle (Strasbourg, IPHC) ; Rizatdinova, Flera (Oklahoma State U.) ; Rominsky, Mandy Kathleen (Fermilab) ; Ross, Anthony (Lancaster U.) ; Royon, Christophe (IRFU, SPP, Saclay) ; Rubinov, Paul Michael (Fermilab) ; Ruchti, Randal C (Notre Dame U.) ; Sajot, Gerard (LPSC, Grenoble) ; Sanchez-Hernandez, Alberto (CINVESTAV, IPN) ; Sanders, Michiel P (Munich U.) ; Santos, Angelo Souza (Rio de Janeiro, CBPF) ; Savage, David G (Fermilab) ; Sawyer, HLee (Louisiana Tech. U.) ; Scanlon, Timothy P (Imperial Coll., London) ; Schamberger, RDean (SUNY, Stony Brook) ; Scheglov, Yury A (St. Petersburg, INP) ; Schellman, Heidi M (Northwestern U.) ; Schwanenberger, Christian (Manchester U.) ; Schwienhorst, Reinhard H (Michigan State U.) ; Sekaric, Jadranka (Kansas U.) ; Severini, Horst (Oklahoma U.) ; Shabalina, Elizaveta K (Gottingen U., II. Phys. Inst.) ; Shary, Viacheslav V (IRFU, SPP, Saclay) ; Shaw, Savanna (Michigan State U.) ; Shchukin, Andrey A (Serpukhov, IHEP) ; Simak, Vladislav J (Prague, Tech. U.) ; Skubic, Patrick Louis (Oklahoma U.) ; Slattery, Paul F (Rochester U.) ; Smirnov, Dmitri V (Notre Dame U.) ; Snow, Gregory R (Nebraska U.) ; Snow, Joel Mark (Langston U.) ; Snyder, Scott Stuart (Brookhaven) ; Soldner-Rembold, Stefan (Manchester U.) ; Sonnenschein, Lars (Aachen, Tech. Hochsch.) ; Soustruznik, Karel (Charles U.) ; Stark, Jan (LPSC, Grenoble) ; Stoyanova, Dina A (Serpukhov, IHEP) ; Strauss, Michael G (Oklahoma U.) ; Suter, Louise (Manchester U.) ; Svoisky, Peter V (Oklahoma U.) ; Titov, Maxim (IRFU, SPP, Saclay) ; Tokmenin, Valeriy V (Dubna, JINR) ; Tsai, Yun-Tse (Rochester U.) ; Tsybychev, Dmitri (SUNY, Stony Brook) ; Tuchming, Boris (IRFU, SPP, Saclay) ; Tully, Christopher George T (Princeton U.) ; Uvarov, Lev (St. Petersburg, INP) ; Uvarov, Sergey L (St. Petersburg, INP) ; Uzunyan, Sergey A (Northern Illinois U.) ; Van Kooten, Richard J (Indiana U.) ; van Leeuwen, Willem M (NIKHEF, Amsterdam) ; Varelas, Nikos (Illinois U., Chicago) ; Varnes, Erich W (Arizona U.) ; Vasilyev, Igor A (Serpukhov, IHEP) ; Verkheev, Alexander Yurievich (Dubna, JINR) ; Vertogradov, Leonid S (Dubna, JINR) ; Verzocchi, Marco (Fermilab) ; Vesterinen, Mika (Manchester U.) ; Vilanova, Didier (IRFU, SPP, Saclay) ; Vokac, Petr (Prague, Tech. U.) ; Wahl, Horst D (Florida State U.) ; Wang, Michael HLS (Fermilab) ; Warchol, Jadwiga (Notre Dame U.) ; Watts, Gordon Thomas (Washington U., Seattle) ; Wayne, Mitchell R (Notre Dame U.) ; Weichert, Jonas (Mainz U., Inst. Phys.) ; Welty-Rieger, Leah Christine (Northwestern U.) ; Williams, Mark Richard James (Indiana U.) ; Wilson, Graham Wallace (Kansas U.) ; Wobisch, Markus (Louisiana Tech. U.) ; Wood, Darien Robert (Northeastern U.) ; Wyatt, Terence R (Manchester U.) ; Xie, Yunhe (Fermilab) ; Yamada, Ryuji (Fermilab) ; Yang, Siqi (Hefei, CUST) ; Yasuda, Takahiro (Fermilab) ; Yatsunenko, Yuriy A (Dubna, JINR) ; Ye, Wanyu (SUNY, Stony Brook) ; Ye, Zhenyu (Fermilab) ; Yin, Hang (Fermilab) ; Yip, Kin (Brookhaven) ; Youn, Sungwoo (Fermilab) ; Yu, Jiaming (Michigan U.) ; Zennamo, Joseph (SUNY, Buffalo) ; Zhao, Tianqi Gilbert (Manchester U.) ; Zhou, Bing (Michigan U.) ; Zhu, Junjie (Michigan U.) ; Zielinski, Marek (Rochester U.) ; Zieminska, Daria (Indiana U.) ; Zivkovic, Lidija (Paris U., VI-VII)

Published in: Phys.Rev.Lett.
Year: 2014
Vol.: 112    Num./Issue: 4
Page No: 042001
Pages: 7
Year: 2014-01-27 published

Abstract: We present the first measurements of the ratios of cross sections, \sigma(ppbar -> Z+c jet)/\sigma(ppbar -> Z+jet) and \sigma(ppbar -> Z+c jet)/\sigma(ppbar -> Z+b jet) for the associated production of a Z boson with at least one charm or bottom quark jet. Jets have transverse momentum p_{T}>20 GeV and pseudorapidity |\eta|<2.5. These cross section ratios are measured differentially as a function of jet and $Z$ boson transverse momenta, based on 9.7 fb^{-1} of ppbar collisions collected with the D0 detector at the Fermilab Tevatron Collider at sqrt(s) = 1.96 TeV. The measurements show significant deviations from perturbative QCD calculations and predictions from various event generators.
We present the first measurements of the ratios of cross sections <math display="inline"><mrow><mrow><mi>σ</mi><mo stretchy="false">(</mo><mi>p</mi><mover accent="true"><mrow><mi>p</mi></mrow><mrow><mo accent="true" stretchy="false">¯</mo></mrow></mover><mo stretchy="false">→</mo><mi>Z</mi><mo>+</mo><mi>c</mi><mtext> </mtext><mtext>jet</mtext><mo stretchy="false">)</mo></mrow><mo>/</mo><mi>σ</mi><mo stretchy="false">(</mo><mi>p</mi><mover accent="true"><mrow><mi>p</mi></mrow><mrow><mo accent="true" stretchy="false">¯</mo></mrow></mover><mo stretchy="false">→</mo><mi>Z</mi><mo>+</mo><mtext>jet</mtext><mo stretchy="false">)</mo></mrow></math> and <math display="inline"><mrow><mi>σ</mi><mo stretchy="false">(</mo><mi>p</mi><mover accent="true"><mrow><mi>p</mi></mrow><mrow><mo accent="true" stretchy="false">¯</mo></mrow></mover><mo stretchy="false">→</mo><mi>Z</mi><mo>+</mo><mi>c</mi><mtext> </mtext><mtext>jet</mtext><mo stretchy="false">)</mo><mo>/</mo><mi>σ</mi><mo stretchy="false">(</mo><mi>p</mi><mover accent="true"><mrow><mi>p</mi></mrow><mrow><mo accent="true" stretchy="false">¯</mo></mrow></mover><mo stretchy="false">→</mo><mi>Z</mi><mo>+</mo><mi>b</mi><mtext> </mtext><mtext>jet</mtext><mo stretchy="false">)</mo></mrow></math> for the associated production of a <math display="inline"><mi>Z</mi></math> boson with at least one charm or bottom quark jet. Jets have transverse momentum <math display="inline"><mrow><mtext>​</mtext><msubsup><mrow><mi>p</mi></mrow><mrow><mi>T</mi></mrow><mrow><mtext>jet</mtext></mrow></msubsup><mtext>​</mtext><mo>&gt;</mo><mn>20</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></mrow></math> and pseudorapidity <math display="inline"><mo stretchy="false">|</mo><mtext>​</mtext><msup><mi>η</mi><mtext>jet</mtext></msup><mtext>​</mtext><mo stretchy="false">|</mo><mo>&lt;</mo><mn>2.5</mn></math> . These cross section ratios are measured differentially as a function of jet and <math display="inline"><mi>Z</mi></math> boson transverse momenta, based on <math display="inline"><mrow><mn>9.7</mn><mtext> </mtext><mtext> </mtext><mi>fb</mi><msup><mrow/><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math> of <math display="inline"><mi>p</mi><mover accent="true"><mi>p</mi><mo accent="true" stretchy="false">¯</mo></mover></math> collisions collected with the D0 detector at the Fermilab Tevatron Collider at <math display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>1.96</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math> . The measurements show significant deviations from perturbative QCD calculations and predictions from various event generators.

Web-Page: http://inspirehep.net/record/1249879/files/Fig1a.png; http://inspirehep.net/record/1249879/files/Fig1b.png; http://inspirehep.net/record/1249879/files/Fig2a.png; http://inspirehep.net/record/1249879/files/Fig2b.png; http://inspirehep.net/record/1249879/files/Fig2c.png; http://inspirehep.net/record/1249879/files/Fig2d.png; http://inspirehep.net/record/1249879/files/arXiv:1308.4384.pdf; http://lss.fnal.gov/archive/2013/pub/fermilab-pub-13-329-e.pdf; http://inspirehep.net/record/1249879/files/fermilab-pub-13-329-e.pdf; http://www.osti.gov/scitech/biblio/1128144; http://www.fnal.gov/pub/today/archive/archive_2013/today13-07-18.html


Note: submitted to Phys. Rev. Lett

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DOI: 10.1103/PhysRevLett.112.042001
10.1103/PhysRevLett.112.042001
 Record created 2013-09-05, last modified 2014-08-01


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