/ hep-ex FERMILAB-PUB-15-033-PPD


Measurement of central exclusive $\pi^+ \pi^-$ production in $p\bar{p}$ collisions at $\sqrt{s} = 0.9$ and 1.96 TeV at CDF


Aaltonen, Timo Antero (Helsinki Inst. of Phys.) ; Amerio, Silvia (Padua U.) ; Amidei, Dante E (Michigan U.) ; Anastassov, Anton Iankov (Northwestern U.) ; Annovi, Alberto (Frascati) ; Antos, Jaroslav (Kosice, IEF) ; Apollinari, Giorgio (Fermilab) ; Appel, Jeffrey A (Fermilab) ; Arisawa, Tetsuo (Waseda U.) ; Artikov, Akram Muzafarovich (Dubna, JINR) ; Asaadi, Jonathan A (Texas A-M) ; Ashmanskas, William Joseph (Fermilab) ; Auerbach, Benjamin (Argonne) ; Aurisano, Adam J (Texas A-M) ; Azfar, Farrukh A (Oxford U.) ; Badgett, William Farris (Fermilab) ; Bae, Taegil (Ewha Women's U., Seoul) ; Barbaro-Galtieri, Angela (LBL, Berkeley) ; Barnes, Virgil E (Purdue U.) ; Barnett, Bruce Arnold (Johns Hopkins U.) ; Barria, Patrizia (INFN, Pisa) ; Bartos, Pavol (Kosice, IEF) ; Bauce, Matteo (INFN, Padua) ; Bedeschi, Franco (INFN, Pisa) ; Behari, Satyajit (Fermilab) ; Bellettini, Giorgio (INFN, Pisa) ; Bellinger, James Nugent (Wisconsin U., Madison) ; Benjamin, Douglas P (Duke U.) ; Beretvas, Andrew F (Fermilab) ; Bhatti, Anwar Ahmad (Rockefeller U.) ; Bland, Karen Renee (Baylor U.) ; Blumenfeld, Barry J (Johns Hopkins U.) ; Bocci, Andrea (Duke U.) ; Bodek, Arie (Rochester U.) ; Bortoletto, Daniela (Purdue U.) ; Boudreau, Joseph Francis (Pittsburgh U.) ; Boveia, Antonio (Chicago U., EFI) ; Brigliadori, Luca (INFN, Bologna) ; Bromberg, Carl Michael (Michigan State U.) ; Brucken, Erik (Helsinki Inst. of Phys.) ; Budagov, Ioulian A (Dubna, JINR) ; Budd, Howard Scott (Rochester U.) ; Burkett, Kevin Alan (Fermilab) ; Busetto, Giovanni (INFN, Padua) ; Bussey, Peter John (Glasgow U.) ; Butti, Pierfrancesco (INFN, Pisa) ; Buzatu, Adrian (Glasgow U.) ; Calamba, Aristotle (Carnegie Mellon U.) ; Camarda, Stefano (Barcelona, IFAE) ; Campanelli, Mario (University Coll. London) ; Canelli, Florencia (Chicago U., EFI) ; Carls, Benjamin (Illinois U., Urbana) ; Carlsmith, Duncan L (Wisconsin U., Madison) ; Carosi, Roberto (INFN, Pisa) ; Carrillo Moreno, Salvador (Florida U.) ; Casal Larana, Bruno (Cantabria Inst. of Phys.) ; Casarsa, Massimo (INFN, Trieste) ; Castro, Andrea (INFN, Bologna) ; Catastini, Pierluigi (Harvard U.) ; Cauz, Diego (Udine U.) ; Cavaliere, Viviana (Illinois U., Urbana) ; Cerri, Alessandro (LBL, Berkeley) ; Cerrito, Lucio (University Coll. London) ; Chen, Yen-Chu (Taiwan, Inst. Phys.) ; Chertok, Maxwell Benjamin (UC, Davis) ; Chiarelli, Giorgio (INFN, Pisa) ; Chlachidze, Gouram (Fermilab) ; Cho, Kihyeon (Ewha Women's U., Seoul) ; Chokheli, Davit (Dubna, JINR) ; Clark, Allan Geoffrey (Geneva U.) ; Clarke, Christopher Joseph (Wayne State U.) ; Convery, Mary Elizabeth (Fermilab) ; Conway, John Stephen (UC, Davis) ; Corbo, Matteo (Fermilab) ; Cordelli, Marco (Frascati) ; Cox, Charles Alexander (UC, Davis) ; Cox, David Jeremy (UC, Davis) ; Cremonesi, Matteo (INFN, Pisa) ; Cruz Alonso, Daniel (Texas A-M) ; Cuevas Maestro, Javier (Cantabria Inst. of Phys.) ; Culbertson, Raymond Lloyd (Fermilab) ; D'Ascenzo, Nicola (Fermilab) ; Datta, Mousumi (Fermilab) ; de Barbaro, Pawel (Rochester U.) ; Demortier, Luc M (Rockefeller U.) ; Marchese, Luigi Marchese (U. Naples) ; Deninno, Maria Maddalena (INFN, Bologna) ; Devoto, Francesco (Helsinki Inst. of Phys.) ; D'Errico, Maria (INFN, Padua) ; Di Canto, Angelo (INFN, Pisa) ; Di Ruzza, Benedetto (Fermilab) ; Dittmann, Jay Richard (Baylor U.) ; D'Onofrio, Monica (Liverpool U.) ; Donati, Simone (INFN, Pisa) ; Dorigo, Mirco (INFN, Trieste) ; Driutti, Anna (Udine U.) ; Ebina, Koji (Waseda U.) ; Edgar, Ryan Christopher (Michigan U.) ; Elagin, Andrey L (Texas A-M) ; Erbacher, Robin D (UC, Davis) ; Errede, Steven Michael (Illinois U., Urbana) ; Esham, Benjamin (Illinois U., Urbana) ; Farrington, Sinead Marie (Oxford U.) ; Fernández Ramos, Juan Pablo (Madrid, CIEMAT) ; Field, Richard D (Florida U.) ; Flanagan, Gene U (Fermilab) ; Forrest, Robert David (UC, Davis) ; Franklin, Melissa EB (Harvard U.) ; Freeman, John Christian (Fermilab) ; Frisch, Henry J (Chicago U., EFI) ; Funakoshi, Yujiro (Waseda U.) ; Galloni, Camilla (Pisa U.) ; Garfinkel, Arthur F (Purdue U.) ; Garosi, Paola (INFN, Pisa) ; Gerberich, Heather Kay (Illinois U., Urbana) ; Gerchtein, Elena A (Fermilab) ; Giagu, Stefano (INFN, Rome) ; Giakoumopoulou, Viktoria Athina (Athens U.) ; Gibson, Karen Ruth (Pittsburgh U.) ; Ginsburg, Camille Marie (Fermilab) ; Giokaris, Nikos D (Athens U.) ; Giromini, Paolo (Frascati) ; Glagolev, Vladimir (Dubna, JINR) ; Glenzinski, Douglas Andrew (Fermilab) ; Gold, Michael S (New Mexico U.) ; Goldin, Daniel (Texas A-M) ; Golossanov, Alexander (Fermilab) ; Gomez, Gervasio (Cantabria Inst. of Phys.) ; Gomez-Ceballos, Guillelmo (MIT) ; Goncharov, Maxim T (MIT) ; González López, Oscar (Madrid, CIEMAT) ; Gorelov, Igor V (New Mexico U.) ; Goshaw, Alfred T (Duke U.) ; Goulianos, Konstantin A (Rockefeller U.) ; Gramellini, Elena (INFN, Bologna) ; Grosso-Pilcher, Carla (Chicago U., EFI) ; Group, Robert Craig (Fermilab) ; Guimaraes da Costa, Joao (Harvard U.) ; Hahn, Stephen R (Fermilab) ; Han, Ji-Yeon (Rochester U.) ; Happacher, Fabio (Frascati) ; Hara, Kazuhiko (Tsukuba U.) ; Hare, Matthew Frederick (Tufts U.) ; Harr, Robert Francis (Wayne State U.) ; Harrington-Taber, Timothy (Fermilab) ; Hatakeyama, Kenichi (Baylor U.) ; Hays, Christopher Paul (Oxford U.) ; Heinrich, Joel G (Pennsylvania U.) ; Herndon, Matthew Fairbanks (Wisconsin U., Madison) ; Hocker, James Andrew (Fermilab) ; Hong, Ziqing (Texas A-M) ; Hopkins, Walter Howard (Fermilab) ; Hou, Suen Ray (Taiwan, Inst. Phys.) ; Hughes, Richard Edward (Ohio State U.) ; Husemann, Ulrich (Yale U.) ; Hussein, Mohammad (Michigan State U.) ; Huston, Joey Walter (Michigan State U.) ; Introzzi, Gianluca (INFN, Pisa) ; Iori, Maurizio (INFN, Rome) ; Ivanov, Andrew Gennadievich (UC, Davis) ; James, Eric B (Fermilab) ; Jang, Dongwook (Carnegie Mellon U.) ; Jayatilaka, Bodhitha Anjalike (Fermilab) ; Jeon, Eun-Ju (Ewha Women's U., Seoul) ; Jindariani, Sergo Robert (Fermilab) ; Jones, Matthew T (Purdue U.) ; Joo, Kyung Kwang (Ewha Women's U., Seoul) ; Jun, Soon Yung (Carnegie Mellon U.) ; Junk, Thomas R (Fermilab) ; Kambeitz, Manuel (Karlsruhe U., EKP) ; Kamon, Teruki (Texas A-M) ; Karchin, Paul Edmund (Wayne State U.) ; Kasmi, Azeddine (Baylor U.) ; Kato, Yukihiro (Osaka City U.) ; Ketchum, Wesley Robert (Chicago U., EFI) ; Keung, Justin Kien (Pennsylvania U.) ; Kilminster, Benjamin John (Fermilab) ; Kim, DongHee (Ewha Women's U., Seoul) ; Kim, Hyunsoo (Ewha Women's U., Seoul) ; Kim, Jieun (Ewha Women's U., Seoul) ; Kim, Min Jeong (Frascati) ; Kim, Soo Bong (Ewha Women's U., Seoul) ; Kim, Shin-Hong (Tsukuba U.) ; Kim, Young-Kee (Chicago U., EFI) ; Kim, Young-Jin (Ewha Women's U., Seoul) ; Kimura, Naoki (Waseda U.) ; Kirby, Michael H (Fermilab) ; Knoepfel, Kyle James (Fermilab) ; Kondo, Kunitaka (Waseda U.) ; Kong, Dae Jung (Ewha Women's U., Seoul) ; Konigsberg, Jacobo (Florida U.) ; Kotwal, Ashutosh Vijay (Duke U.) ; Kreps, Michal (Karlsruhe U., EKP) ; Kroll, IJoseph (Pennsylvania U.) ; Kruse, Mark Charles (Duke U.) ; Kuhr, Thomas (Karlsruhe U., EKP) ; Kurata, Masakazu (Tsukuba U.) ; Laasanen, Alvin Toivo (Purdue U.) ; Lammel, Stephan (Fermilab) ; Lancaster, Mark (University Coll. London) ; Lannon, Kevin Patrick (Ohio State U.) ; Latino, Giuseppe (INFN, Pisa) ; Lee, Hyun Su (Ewha Women's U., Seoul) ; Lee, Jaison (Ewha Women's U., Seoul) ; Leo, Sabato (Illinois U., Urbana) ; Leone, Sandra (INFN, Pisa) ; Lewis, Jonathan D (Fermilab) ; Limosani, Antonio (Duke U.) ; Lipeles, Elliot David (Pennsylvania U.) ; Lister, Alison (Geneva U.) ; Liu, Hao (Virginia U.) ; Liu, Qiuguang (Purdue U.) ; Liu, Tiehui Ted (Fermilab) ; Lockwitz, Sarah E (Yale U.) ; Loginov, Andrey Borisovich (Yale U.) ; Lontkovskyi, Denys (DESY) ; Lucà, Alessandra (Frascati) ; Lucchesi, Donatella (INFN, Padua) ; Lueck, Jan (Karlsruhe U., EKP) ; Lujan, Paul Joseph (LBL, Berkeley) ; Lukens, Patrick Thomas (Fermilab) ; Lungu, Gheorghe (Rockefeller U.) ; Lys, Jeremy E (LBL, Berkeley) ; Lysak, Roman (Kosice, IEF) ; Madrak, Robyn Leigh (Fermilab) ; Maestro, Paolo (INFN, Pisa) ; Makarenko, Inna (DESY) ; Malik, Sarah Alam (Rockefeller U.) ; Manca, Giulia (Liverpool U.) ; Manousakis-Katsikakis, Arkadios (Athens U.) ; Margaroli, Fabrizio (INFN, Rome) ; Marino, Christopher Phillip (INFN, Pisa) ; Matera, Keith (Illinois U., Urbana) ; Mattson, Mark Edward (Wayne State U.) ; Mazzacane, Anna (Fermilab) ; Mazzanti, Paolo (INFN, Bologna) ; McNulty, Ronan (Liverpool U.) ; Mehta, Andrew (Liverpool U.) ; Mehtala, Petteri (Helsinki Inst. of Phys.) ; Mesropian, Christina (Rockefeller U.) ; Miao, Ting (Fermilab) ; Mietlicki, David John (Michigan U.) ; Mitra, Ankush (Taiwan, Inst. Phys.) ; Miyake, Hideki (Tsukuba U.) ; Moed, Shulamit (Fermilab) ; Moggi, Niccolo (INFN, Bologna) ; Moon, Chang-Seong (Fermilab) ; Moore, Ronald Scott (Fermilab) ; Morello, Michael Joseph (INFN, Pisa) ; Mukherjee, Aseet (Fermilab) ; Muller, Thomas (Karlsruhe U., EKP) ; Murat, Pavel A (Fermilab) ; Mussini, Manuel (INFN, Bologna) ; Nachtman, Jane Marie (Fermilab) ; Nagai, Yoshikazu (Tsukuba U.) ; Naganoma, Junji (Waseda U.) ; Nakano, Itsuo (Okayama U.) ; Napier, Austin (Tufts U.) ; Nett, Jason Michael (Texas A-M) ; Neu, Christopher Carl (Virginia U.) ; Nigmanov, Turgun S (Pittsburgh U.) ; Nodulman, Lawrence J (Argonne) ; Noh, Seoyoung (Ewha Women's U., Seoul) ; Norniella Francisco, Olga (Illinois U., Urbana) ; Oakes, Louise Beth (Oxford U.) ; Oh, Seog Hwan (Duke U.) ; Oh, Young-do (Ewha Women's U., Seoul) ; Oksuzian, Iuri Artur (Virginia U.) ; Okusawa, Toru (Osaka City U.) ; Orava, Risto Olavi (Helsinki Inst. of Phys.) ; Ortolan, Lorenzo (Barcelona, IFAE) ; Pagliarone, Carmine Elvezio (INFN, Trieste) ; Palencia, Jose Enrique (Cantabria Inst. of Phys.) ; Palni, Prabhakar (New Mexico U.) ; Papadimitriou, Vaia (Fermilab) ; Parker, William Chesluk (Wisconsin U., Madison) ; Pauletta, Giovanni (INFN, Udine) ; Paulini, Manfred (Carnegie Mellon U.) ; Paus, Christoph Maria Ernst (MIT) ; Phillips, Thomas J (Duke U.) ; Piacentino, Giovanni M (INFN, Lecce) ; Pianori, Elisabetta (Pennsylvania U.) ; Pilot, Justin Robert (UC, Davis) ; Pitts, Kevin T (Illinois U., Urbana) ; Plager, Charles (UCLA) ; Pondrom, Lee G (Wisconsin U., Madison) ; Poprocki, Stephen (Fermilab) ; Potamianos, Karolos Jozef (LBL, Berkeley) ; Prokoshin, Fedor (Dubna, JINR) ; Pranko, Aliaksandr Pavlovich (LBL, Berkeley) ; Ptohos, Fotios K (Frascati) ; Punzi, Giovanni (INFN, Pisa) ; Redondo Fernández, Ignacio (Madrid, CIEMAT) ; Renton, Peter B (Oxford U.) ; Rescigno, Marco (INFN, Rome) ; Rimondi, Franco (INFN, Bologna) ; Ristori, Luciano (Fermilab) ; Robson, Aidan (Glasgow U.) ; Rodriguez, Tatiana Isabel (Pennsylvania U.) ; Rolli, Simona (Tufts U.) ; Ronzani, Manfredi (INFN, Pisa) ; Roser, Robert Martin (Fermilab) ; Rosner, Jonathan L (Chicago U., EFI) ; Ruffini, Fabrizio (INFN, Pisa) ; Ruiz Jimeno, Alberto (Cantabria Inst. of Phys.) ; Russ, James S (Carnegie Mellon U.) ; Rusu, Vadim Liviu (Fermilab) ; Sakumoto, Willis Kazuo (Rochester U.) ; Sakurai, Yuki (Waseda U.) ; Santi, Lorenzo (Udine U.) ; Sato, Koji (Tsukuba U.) ; Saveliev, Valeri (Fermilab) ; Savoy-Navarro, Aurore (Fermilab) ; Schlabach, Philip (Fermilab) ; Schmidt, Eugene E (Fermilab) ; Schwarz, Thomas A (Michigan U.) ; Scodellaro, Luca (Cantabria Inst. of Phys.) ; Scuri, Fabrizio (INFN, Pisa) ; Seidel, Sally C (New Mexico U.) ; Seiya, Yoshihiro (Osaka City U.) ; Semenov, Alexei (Dubna, JINR) ; Sforza, Federico (INFN, Pisa) ; Shalhout, Shalhout Zaki (UC, Davis) ; Shears, Tara G (Liverpool U.) ; Shepard, Paul F (Pittsburgh U.) ; Shimojima, Makoto (Tsukuba U.) ; Shochet, Melvyn J (Chicago U., EFI) ; Shreyber-Tecker, Irina (Moscow, ITEP) ; Simonenko, Alexander V (Dubna, JINR) ; Sliwa, Krzysztof Jan (Tufts U.) ; Smith, John Rodgers (UC, Davis) ; Snider, Frederick Douglas (Fermilab) ; Sorin, Maria Veronica (Barcelona, IFAE) ; Song, Hao (Pittsburgh U.) ; Stancari, Michelle Dawn (Fermilab) ; St Denis, Richard Dante (Glasgow U.) ; Stentz, Dale James (Fermilab) ; Strologas, John (New Mexico U.) ; Sudo, Yuji (Tsukuba U.) ; Sukhanov, Alexander I (Fermilab) ; Suslov, Igor M (Dubna, JINR) ; Takemasa, Ken-ichi (Tsukuba U.) ; Takeuchi, Yuji (Tsukuba U.) ; Tang, Jian (Chicago U., EFI) ; Tecchio, Monica (Michigan U.) ; Teng, Ping-Kun (Taiwan, Inst. Phys.) ; Thom, Julia (Fermilab) ; Thomson, Evelyn Jean (Pennsylvania U.) ; Thukral, Vaikunth (Texas A-M) ; Toback, David A (Texas A-M) ; Tokar, Stanislav (Kosice, IEF) ; Tollefson, Kirsten Anne (Michigan State U.) ; Tomura, Tomonobu (Tsukuba U.) ; Tonelli, Diego (Fermilab) ; Torre, Stefano (Frascati) ; Torretta, Donatella (Fermilab) ; Totaro, Pierluigi (INFN, Padua) ; Trovato, Marco (INFN, Pisa) ; Ukegawa, Fumihiko (Tsukuba U.) ; Uozumi, Satoru (Ewha Women's U., Seoul) ; Vázquez-Valencia, Elsa Fabiola (Florida U.) ; Velev, Gueorgui (Fermilab) ; Vellidis, Konstantinos (Fermilab) ; Vernieri, Caterina (INFN, Pisa) ; Vidal Marono, Miguel (Purdue U.) ; Vilar Cortabitarte, Rocio (Cantabria Inst. of Phys.) ; Vizán Garcia, Jesus Manuel (Cantabria Inst. of Phys.) ; Vogel, Marcelo (New Mexico U.) ; Volpi, Guido (Frascati) ; Wagner, Peter (Pennsylvania U.) ; Wallny, Rainer S (Zürich, ETH) ; Wang, Song-Ming (Taiwan, Inst. Phys.) ; Waters, David S (University Coll. London) ; Wester, William Carl (Fermilab) ; Whiteson, Daniel O (Pennsylvania U.) ; Wicklund, Arthur Barry (Argonne) ; Wilbur, Scott (UC, Davis) ; Williams, Hugh H (Pennsylvania U.) ; Wilson, Jonathan Samuel (Michigan U.) ; Wilson, Peter James (Fermilab) ; Winer, Brian L (Ohio State U.) ; Wittich, Peter (Fermilab) ; Wolbers, Stephen A (Fermilab) ; Wolfe, Homer (Ohio State U.) ; Wright, Thomas Roland (Michigan U.) ; Wu, Xin (Geneva U.) ; Wu, Zhenbin (Baylor U.) ; Yamamoto, Kazuhiro (Osaka City U.) ; Yamato, Daisuke (Osaka City U.) ; Yang, Tingjun (Fermilab) ; Yang, Un-Ki (Ewha Women's U., Seoul) ; Yang, Yu Chul (Ewha Women's U., Seoul) ; Yao, Wei-Ming (LBL, Berkeley) ; Yeh, Gong Ping (Fermilab) ; Yi, Kai (Fermilab) ; Yoh, John (Fermilab) ; Yorita, Kohei (Waseda U.) ; Yoshida, Takuo (Osaka City U.) ; Yu, Geum Bong (Duke U.) ; Yu, Intae (Ewha Women's U., Seoul) ; Zanetti, Anna Maria (INFN, Trieste) ; Zeng, Yu (Duke U.) ; Zhou, Chen (Duke U.) ; Zucchelli, Stefano (INFN, Bologna) ; Zurek, Maria (Cologne U.)

Pages: 7

Abstract: We measure exclusive $\pi^+\pi^-$ production in proton-antiproton collisions at center-of-mass energies $\sqrt{s}$ = 0.9 and 1.96 TeV in the Collider Detector at Fermilab. We select events with two oppositely-charged particles, assumed to be pions, with pseudorapidity $|\eta| < 1.3$ and with no other particles detected in $|\eta| < 5.9$. We require the \pipi system to have rapidity $|y|<$ 1.0. The production mechanism of these events is expected to be dominated by double pomeron exchange, which constrains the quantum numbers of the central state. The data are potentially valuable for isoscalar meson spectroscopy, and for understanding the pomeron in a region of transition between nonperturbative and perturbative quantum chromodynamics. The data extend up to dipion mass $M(\pi^+\pi^-)$ = 5000 MeV/$c^2$, and show resonance structures attributed to $f_0$ and $f_2(1270)$ mesons. From the $\pi^+\pi^-$ and $K^+K^-$ spectra we place upper limits on exclusive $\chi_{c0}(3415)$ production.

Web-Page: http://inspirehep.net/record/1343102/files/MassLog1960NoSys.png; http://inspirehep.net/record/1343102/files/Mass1960RegionsSingle.png; http://inspirehep.net/record/1343102/files/Mass1960Tail.png; http://inspirehep.net/record/1343102/files/Mass1960900RatioSys.png; http://inspirehep.net/record/1343102/files/arXiv:1502.01391.pdf; http://www.fnal.gov/pub/today/archive/archive_2015/today15-02-12.html


Note: 7 pages, 4 figures, submitted to Phys. Rev. Lett

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