Measurement of the central exclusive production of charged particle pairs in proton-proton collisions at √s = 200 GeV with the STAR detector at RHIC

Jaroslav Adam, Leszek Adamczyk, Joseph R. Adams, J. Kevin Adkins, Geydar Agakishiev, Madan Mohan Aggarwal, Zubayer Ahammed, Igor G. Alekseev, Derek M. Anderson, Alexey Aparin, Elke Caroline Aschenauer, Muhammad Usman Ashraf, F. G. Atetalla, Anjali Attri, Georgy S. Averichev, Vipul Bairathi, Kenneth Barish, Arabinda Behera, Rene Bellwied, Anju Bhasin, Jaroslav Bielčík, Jana Bielčíková, Leslie C. Bland, Igor G. Bordyuzhin, James D. Brandenburg, Andrei V. Brandin, Joseph Butterworth, Helen Louise Caines, Manuel Calderón de la Barca Sánchez, Daniel A. Cebra, Irakli Chakaberia, Petr Chaloupka, B. K. Chan, F-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, D. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, Michael Gerard Cherney, M. Chevalier, Subikash Choudhury, William Christie, Xiaoxuan Chu, Henry J. Crawford, Máté Csanád, M. Daugherity, T. G. Dedovich, Ingo Martin Deppner, Anatoly A. Derevschikov, Lidia Didenko, X. Dong, James Lucus Drachenberg, James C. Dunlop, Terrence Edmonds, Nicholas Elsey, Jon M. Engelage, Geary Wareham Eppley, Roli Esha, ShinIchi Esumi, Olga Y. Evdokimov, A. Ewigleben, Kjeld Oleg Eyser, Renee H. Fatemi, Salvatore Fazio, Pavol Federič, Jan Fedorišin, C. J. Feng, Yicheng Feng, Peter Filip, Evan Finch, Yuri V. Fisyak, Audrey Francisco, Łukasz Fulek, Carl A. Gagliardi, Tetyana Galatyuk, Frank Geurts, Adam Gibson, Krishan Gopal, David P. Grosnick, Włodzimierz Guryn, A. I. Hamad, Ahmed M. Hamed, Szymon Harabasz, John W. Harris, S. He, W. He, Xionghong He, S. Heppelmann, S. Heppelmann, Norbert Herrmann, E. Hoffman, Lukáš Holub, Y. Hong, S. Horvat, Y. Hu, Huan Zhong Huang, Shengli Huang, T. Huang, X. Huang, Thomas J. Humanic, P. Huo, George J. Igo, D. Isenhower, William W. Jacobs, Chitrasen Jena, Alexander Jentsch, Yuanjing JI, Jiangyong Jia, K. Jiang, S. Jowzaee, Xin-Yue Ju, Eleanor G. Judd, Sonia Kabana, M. L. Kabir, Skipper Kagamaster, Dmitry Kalinkin, K. Kang, David Kapukchyan, Kolja Kauder, Hongwei Ke, Declan Keane, Armen Kechechyan, Matthew Kelsey, Yevheniia V. Khyzhniak, Daniel P. Kikoła, C. Kim, B. Kimelman, D. Kincses, Todd Adler Kinghorn, Ivan Kisel, A. Kiselev, Adam Ryszard Kisiel, Michal Kocan, L. M. Kočenda, Leszek Krzysztof Kosarzewski, L. Kramarik, Peter Kravtsov, Keith William Krueger, Nalinda Kulathunga Mudiyanselage, Lokesh Kumar, Raghav Kunnawalkam Elayavalli, Joseph H. Kwasizur, Roy Alphanso Lacey, Shaowei Lan, Jeffery M. Landgraf, Jerome Lauret, Alexei Lebedev, Richard Lednicky, J. H. Lee, Yue Hang Leung, C. Li, W. Li, W. Li, X. Li, Y. Li, Y. Liang, Robert Licenik, T. Lin, Y. Lin, Michael A. Lisa, F. Liu, H. Liu, P. Liu, P. Liu, Tong Liu, X. Liu, Y. Liu, Z. Liu, Tonko A. Ljubicic, William Joseph Llope, Ronald S. Longacre, N. S. Lukow, S. Luo, X. Luo, G. L. Ma, L. Ma, R. Ma, Yu-Gang Ma, Niseem Magdy Abdelwahab Abdelrahman, Richard Daniel Majka, Dukhishyam Mallick, Spyridon Margetis, Christina Markert, Howard S. Matis, Joel Anthony Mazer, Nikolai G. Minaev, Saskia Mioduszewski, Bedangadas Mohanty, Mriganka Mouli Mouli, Isaac A. Mooney, Zuzana Moravcova, Dmitry A. Morozov, M. Nagy, J. D. Nam, Md. Nasim, Kishora Nayak, D. Neff, John M. Nelson, Daniel B. Nemes, M. Nie, Grigory A. Nigmatkulov, Takafumi Niida, Larisa V. Nogach, Toshihiro Nonaka, A. S. Nunes, Grazyna Janina Odyniec, Akio Ogawa, Saehanseul Oh, Vitaly A. Okorokov, Brian S. Page, Robert Pak, Ashish Pandav, Yuri Panebratsev, Bogdan Pawlik, Diana Pawłowska, Hua Pei, Chris Perkins, Lawrence Pinsky, Roland Laszlo Pintér, Jan Marian Pluta, Jeffrey Brent Porter, Matthew Posik, Navneet Kumar Pruthi, Mariusz Przybycien, Jörn H. Putschke, H. Qiu, Amilkar Quintero, Sooraj Krishnan Radhakrishnan, Suvarna Ramachandran, Robert L. Ray, Rosi Jan Reed, Hans Georg Ritter, Jabus B. Roberts, Oleg V. Rogačevskij, Juan L. Romero, L. Ruan, Jan Rusnak, Nihar Ranjan Sahoo, H. Sako, Sevil Salur, Jack H. Sandweiss, Susumu Sato, William B. Schmidke, Norbert Schmitz, Benjamin R. Schweid, Florian Seck, Janet Elizabeth Seger, Maria Sergeeva, Richard Seto, Peter Seyboth, N. Shah, Ehtiram Shahaliev, Prashanth V. Shanmuganathan, M. Shao, F. Shen, W. Q. Shen, Shusu Shi, Q. Y. Shou, Ernst P. Sichtermann, Rafał Sikora, Miroslav Šimko, J. Singh, Subhash Singha, Nikolai Smirnov, William Solyst, Paul Richard Sorensen, Harold. M. Spinka, B. Srivastava, T. D. Shirvel Stanislaus, Maria Stefaniak, David J. Stewart, Michail Nikolaevič Strichanov, Blair Stringfellow, Alexandre Alarcon do Passo Suaide, Michal Šumbera, Branden Summa, X. M. Sun, X. Sun, Y. Sun, Y. Sun, Bernd Surrow, Dmitry N. Svirida, Paweł Szymański, Aihong Tang, Zebo Tang, Arkadiy Taranenko, Terence J. Tarnowsky, James H. Thomas, Anthony Robert Timmins, David Tlusty, Mikhail V. Tokarev, C. A. Tomkiel, Stephen Trentalange, Robert E. Tribble, Prithwish Tribedy, Srikanta Kumar Tripathy, Oleg D. Tsai, Zhoudunming Tu, Thomas Ullrich, David G. Underwood, Isaac Upsal, Gene Van Buren, Jan Vanek, Alexander Nikolaevich Vasiliev, Iouri Vassiliev, Flemming Videbæk, Stanislav Vokal, Sergei Voloshin, F. Wang, G. Wang, J. S. Wang, P. Wang, Y. Wang, Y. Wang, Z. Wang, Jason C. Webb, Philipp Weidenkaff, L. Wen, Gary D. Westfall, Howard Wieman, Scott W. Wissink, Richard Witt, Y. Wu, Z. G. Xiao, Guannan Xie, W. Xie, H. Xu, N. Xu, Qinghua Xu, Y. F. Xu, Y. Xu, Z. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, Z. Ye, L. Yi, K. Yip, Hanna Paulina Zbroszczyk, Wangmei Zha, Dingwei Zhang, S. Zhang, S. Zhang, X. P. Zhang, Y. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, Maria Katarzyna Żurek, Maksym Zyzak

  • We report on the measurement of the Central Exclusive Production of charged particle pairs h+h− (h = π, K, p) with the STAR detector at RHIC in proton-proton collisions at √s = 200 GeV. The charged particle pairs produced in the reaction pp → p′ + h+h− + p′ are reconstructed from the tracks in the central detector and identified using the specific energy loss and the time of flight method, while the forward-scattered protons are measured in the Roman Pot system. Exclusivity of the event is guaranteed by requiring the transverse momentum balance of all four final-state particles. Differential cross sections are measured as functions of observables related to the central hadronic final state and to the forward-scattered protons. They are measured in a fiducial region corresponding to the acceptance of the STAR detector and determined by the central particles’ transverse momenta and pseudorapidities as well as by the forward-scattered protons’ momenta. This fiducial region roughly corresponds to the square of the four-momentum transfers at the proton vertices in the range 0.04 GeV2 < −t1, −t2 < 0.2 GeV2, invariant masses of the charged particle pairs up to a few GeV and pseudorapidities of the centrally-produced hadrons in the range |η| < 0.7. The measured cross sections are compared to phenomenological predictions based on the Double Pomeron Exchange (DPE) model. Structures observed in the mass spectra of π+π− and K+K− pairs are consistent with the DPE model, while angular distributions of pions suggest a dominant spin-0 contribution to π+π− production. For π+π− production, the fiducial cross section is extrapolated to the Lorentz-invariant region, which allows decomposition of the invariant mass spectrum into continuum and resonant contributions. The extrapolated cross section is well described by the continuum production and at least three resonances, the f0(980), f2(1270) and f0(1500), with a possible small contribution from the f0(1370). Fits to the extrapolated differential cross section as a function of t1 and t2 enable extraction of the exponential slope parameters in several bins of the invariant mass of π+π− pairs. These parameters are sensitive to the size of the interaction region.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Jaroslav AdamORCiDGND, Leszek AdamczykORCiDGND, Joseph R. AdamsORCiD, J. Kevin Adkins, Geydar AgakishievGND, Madan Mohan AggarwalGND, Zubayer AhammedORCiD, Igor G. AlekseevORCiD, Derek M. AndersonORCiD, Alexey AparinORCiD, Elke Caroline AschenauerORCiD, Muhammad Usman AshrafORCiD, F. G. Atetalla, Anjali Attri, Georgy S. AverichevGND, Vipul BairathiORCiD, Kenneth BarishORCiD, Arabinda BeheraORCiD, Rene BellwiedORCiDGND, Anju BhasinORCiD, Jaroslav BielčíkORCiDGND, Jana BielčíkováORCiDGND, Leslie C. BlandORCiD, Igor G. Bordyuzhin, James D. BrandenburgORCiD, Andrei V. Brandin, Joseph Butterworth, Helen Louise CainesORCiD, Manuel Calderón de la Barca SánchezORCiD, Daniel A. CebraORCiD, Irakli ChakaberiaORCiD, Petr ChaloupkaORCiD, B. K. Chan, F-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, D. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, Michael Gerard Cherney, M. Chevalier, Subikash ChoudhuryORCiD, William ChristieORCiD, Xiaoxuan ChuORCiD, Henry J. CrawfordORCiD, Máté CsanádORCiD, M. Daugherity, T. G. Dedovich, Ingo Martin DeppnerORCiDGND, Anatoly A. Derevschikov, Lidia Didenko, X. Dong, James Lucus DrachenbergORCiD, James C. DunlopORCiD, Terrence Edmonds, Nicholas Elsey, Jon M. Engelage, Geary Wareham Eppley, Roli EshaORCiD, ShinIchi EsumiORCiDGND, Olga Y. EvdokimovORCiD, A. Ewigleben, Kjeld Oleg EyserORCiD, Renee H. FatemiORCiD, Salvatore FazioORCiD, Pavol FederičORCiD, Jan FedorišinGND, C. J. Feng, Yicheng FengORCiD, Peter FilipORCiD, Evan FinchORCiD, Yuri V. FisyakORCiD, Audrey FranciscoORCiD, Łukasz FulekORCiD, Carl A. Gagliardi, Tetyana GalatyukORCiDGND, Frank GeurtsORCiD, Adam GibsonORCiD, Krishan GopalORCiD, David P. Grosnick, Włodzimierz GurynORCiD, A. I. Hamad, Ahmed M. HamedORCiD, Szymon HarabaszORCiDGND, John W. HarrisORCiDGND, S. He, W. He, Xionghong HeORCiD, S. Heppelmann, S. Heppelmann, Norbert HerrmannGND, E. Hoffman, Lukáš HolubORCiD, Y. Hong, S. Horvat, Y. Hu, Huan Zhong HuangORCiD, Shengli Huang, T. Huang, X. Huang, Thomas J. HumanicORCiD, P. Huo, George J. Igo, D. Isenhower, William W. JacobsORCiD, Chitrasen JenaORCiD, Alexander JentschORCiD, Yuanjing JIORCiD, Jiangyong JiaORCiDGND, K. Jiang, S. Jowzaee, Xin-Yue JuGND, Eleanor G. JuddORCiD, Sonia KabanaORCiD, M. L. Kabir, Skipper KagamasterORCiD, Dmitry KalinkinORCiD, K. Kang, David KapukchyanORCiD, Kolja KauderORCiD, Hongwei KeORCiD, Declan KeaneORCiD, Armen Kechechyan, Matthew KelseyORCiD, Yevheniia V. KhyzhniakORCiD, Daniel P. KikołaORCiD, C. Kim, B. Kimelman, D. Kincses, Todd Adler Kinghorn, Ivan KiselORCiDGND, A. Kiselev, Adam Ryszard KisielORCiD, Michal KocanORCiD, L. M. KočendaGND, Leszek Krzysztof KosarzewskiORCiD, L. Kramarik, Peter KravtsovORCiD, Keith William Krueger, Nalinda Kulathunga MudiyanselageORCiD, Lokesh KumarORCiD, Raghav Kunnawalkam ElayavalliORCiD, Joseph H. Kwasizur, Roy Alphanso LaceyORCiD, Shaowei LanORCiD, Jeffery M. Landgraf, Jerome LauretORCiD, Alexei Lebedev, Richard LednickyORCiD, J. H. Lee, Yue Hang LeungORCiDGND, C. Li, W. Li, W. Li, X. Li, Y. Li, Y. Liang, Robert LicenikORCiD, T. Lin, Y. Lin, Michael A. LisaORCiDGND, F. Liu, H. Liu, P. Liu, P. Liu, Tong Liu, X. Liu, Y. Liu, Z. Liu, Tonko A. Ljubicic, William Joseph LlopeORCiD, Ronald S. Longacre, N. S. Lukow, S. Luo, X. Luo, G. L. Ma, L. Ma, R. Ma, Yu-Gang MaORCiD, Niseem Magdy Abdelwahab AbdelrahmanORCiD, Richard Daniel MajkaORCiD, Dukhishyam MallickORCiD, Spyridon MargetisORCiD, Christina MarkertORCiDGND, Howard S. MatisORCiD, Joel Anthony Mazer, Nikolai G. Minaev, Saskia MioduszewskiORCiD, Bedangadas MohantyORCiD, Mriganka Mouli MouliORCiD, Isaac A. MooneyORCiD, Zuzana MoravcovaORCiD, Dmitry A. Morozov, M. Nagy, J. D. Nam, Md. Nasim, Kishora NayakORCiD, D. Neff, John M. Nelson, Daniel B. Nemes, M. Nie, Grigory A. NigmatkulovORCiD, Takafumi NiidaORCiD, Larisa V. Nogach, Toshihiro NonakaORCiD, A. S. Nunes, Grazyna Janina Odyniec, Akio Ogawa, Saehanseul OhORCiD, Vitaly A. OkorokovORCiD, Brian S. PageORCiD, Robert Pak, Ashish PandavORCiD, Yuri Panebratsev, Bogdan PawlikORCiD, Diana PawłowskaORCiD, Hua PeiORCiD, Chris Perkins, Lawrence PinskyORCiD, Roland Laszlo Pintér, Jan Marian Pluta, Jeffrey Brent Porter, Matthew PosikORCiD, Navneet Kumar PruthiORCiD, Mariusz PrzybycienORCiD, Jörn H. PutschkeORCiDGND, H. Qiu, Amilkar QuinteroORCiD, Sooraj Krishnan Radhakrishnan, Suvarna RamachandranORCiD, Robert L. RayORCiD, Rosi Jan ReedORCiD, Hans Georg Ritter, Jabus B. Roberts, Oleg V. RogačevskijGND, Juan L. Romero, L. Ruan, Jan RusnakORCiD, Nihar Ranjan SahooORCiD, H. Sako, Sevil SalurORCiDGND, Jack H. Sandweiss, Susumu Sato, William B. Schmidke, Norbert SchmitzGND, Benjamin R. Schweid, Florian SeckORCiDGND, Janet Elizabeth SegerORCiD, Maria Sergeeva, Richard SetoORCiDGND, Peter SeybothORCiDGND, N. Shah, Ehtiram Shahaliev, Prashanth V. ShanmuganathanORCiD, M. Shao, F. Shen, W. Q. Shen, Shusu ShiORCiD, Q. Y. Shou, Ernst P. SichtermannORCiD, Rafał SikoraORCiD, Miroslav ŠimkoORCiD, J. Singh, Subhash SinghaORCiD, Nikolai SmirnovORCiD, William Solyst, Paul Richard SorensenORCiD, Harold. M. SpinkaORCiD, B. Srivastava, T. D. Shirvel Stanislaus, Maria StefaniakORCiD, David J. Stewart, Michail Nikolaevič StrichanovORCiDGND, Blair Stringfellow, Alexandre Alarcon do Passo SuaideORCiD, Michal ŠumberaORCiD, Branden Summa, X. M. Sun, X. Sun, Y. Sun, Y. Sun, Bernd SurrowORCiDGND, Dmitry N. SviridaORCiD, Paweł SzymańskiORCiD, Aihong TangORCiD, Zebo TangORCiD, Arkadiy TaranenkoORCiD, Terence J. TarnowskyORCiD, James H. ThomasORCiD, Anthony Robert TimminsORCiD, David Tlusty, Mikhail V. Tokarev, C. A. Tomkiel, Stephen TrentalangeORCiD, Robert E. Tribble, Prithwish TribedyORCiDGND, Srikanta Kumar TripathyORCiD, Oleg D. Tsai, Zhoudunming TuORCiD, Thomas UllrichORCiDGND, David G. UnderwoodORCiD, Isaac Upsal, Gene Van BurenORCiD, Jan VanekORCiD, Alexander Nikolaevich Vasiliev, Iouri VassilievORCiD, Flemming VidebækORCiD, Stanislav Vokal, Sergei VoloshinORCiDGND, F. Wang, G. Wang, J. S. Wang, P. Wang, Y. Wang, Y. Wang, Z. Wang, Jason C. WebbORCiD, Philipp WeidenkaffGND, L. Wen, Gary D. WestfallGND, Howard Wieman, Scott W. WissinkORCiD, Richard WittORCiD, Y. Wu, Z. G. Xiao, Guannan XieORCiD, W. Xie, H. Xu, N. Xu, Qinghua XuORCiD, Y. F. Xu, Y. Xu, Z. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, Z. Ye, L. Yi, K. Yip, Hanna Paulina ZbroszczykORCiD, Wangmei ZhaORCiD, Dingwei ZhangORCiD, S. Zhang, S. Zhang, X. P. Zhang, Y. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, Maria Katarzyna ŻurekORCiDGND, Maksym ZyzakGND
URN:urn:nbn:de:hebis:30:3-849455
DOI:https://doi.org/10.1007/jhep07(2020)178
ISSN:1029-8479
ArXiv Id:http://arxiv.org/abs/2004.11078
Parent Title (English):Journal of high energy physics
Publisher:Springer
Place of publication:Berlin ; Heidelberg
Document Type:Article
Language:English
Date of Publication (online):2020/07/06
Date of first Publication:2020/07/06
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Creating Corporation:STAR Collaboration
Release Date:2024/07/17
Tag:Diffraction; Forward physics; Hadron-Hadron scattering (experiments)
Volume:2020
Issue:7, 178
Article Number:178
Page Number:46
Institutes:Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International