CERN Accelerating science

Article
Report number arXiv:2006.02153 ; CERN-EP-2020-103
Title Two-particle correlations in azimuthal angle and pseudorapidity in central $^7$Be+$^9$Be collisions at the CERN Super Proton Synchrotron
Related titleTwo-particle correlations in azimuthal angle and pseudorapidity in central 7Be+9Be collisions at the CERN Super Proton Synchrotron
Author(s)

Aduszkiewicz, A. (Warsaw U.) ; Andronov, E.V. (St. Petersburg State U.) ; Antićić, T. (Boskovic Inst., Zagreb) ; Babkin, V. (Dubna, JINR) ; Baszczyk, M. (AGH-UST, Cracow) ; Bhosale, S. (Cracow, INP) ; Blondel, A. (Paris U., VI-VII) ; Bogomilov, M. (Sofiya U.) ; Brandin, A. (Moscow Phys. Eng. Inst.) ; Bravar, A. (Geneva U.) ; Bryliński, W. (Warsaw U. of Tech.) ; Brzychczyk, J. (Jagiellonian U. (main)) ; Buryakov, M. (Dubna, JINR) ; Busygina, O. (Moscow, INR) ; Bzdak, A. (AGH-UST, Cracow) ; Cherif, H. (Frankfurt U.) ; Ćirković, M. (Belgrade U.) ; Csanad, M. (Wigner RCP, Budapest) ; Cybowska, J. (Warsaw U. of Tech.) ; Czopowicz, T. (Jan Kochanowski U. ; Warsaw U. of Tech.) ; Damyanova, A. (Geneva U.) ; Davis, N. (Cracow, INP) ; Deliyergiyev, M. (Jan Kochanowski U.) ; Deveaux, M. (Frankfurt U.) ; Dmitriev, A. (Dubna, JINR) ; Dominik, W. (Warsaw U.) ; Dorosz, P. (AGH-UST, Cracow) ; Dumarchez, J. (Paris U., VI-VII) ; Engel, R. (KIT, Karlsruhe) ; Feofilov, G.A. (St. Petersburg State U.) ; Fields, L. (Fermilab) ; Fodor, Z. (Wigner RCP, Budapest ; Wroclaw U.) ; Garibov, A. (NNRC, Baku) ; Gaździcki, M. (Frankfurt U. ; Jan Kochanowski U.) ; Golosov, O. (Moscow Phys. Eng. Inst.) ; Golovatyuk, V. (Dubna, JINR) ; Golubeva, M. (Moscow, INR) ; Grebieszkow, K. (Warsaw U. of Tech.) ; Guber, F. (Moscow, INR) ; Haesler, A. (Geneva U.) ; Igolkin, S.N. (St. Petersburg State U.) ; Ilieva, S. (Sofiya U.) ; Ivashkin, A. (Moscow, INR) ; Johnson, S.R. (Colorado U.) ; Kadija, K. (Boskovic Inst., Zagreb) ; Kargin, N. (Moscow Phys. Eng. Inst.) ; Kashirin, E. (Moscow Phys. Eng. Inst.) ; Kiełbowicz, M. (Cracow, INP) ; Kireyeu, V.A. (Dubna, JINR) ; Klochkov, V. (Frankfurt U.) ; Kolesnikov, V.I. (Dubna, JINR) ; Kolev, D. (Sofiya U.) ; Korzenev, A. (Geneva U.) ; Kovalenko, V.N. (St. Petersburg State U.) ; Kowalski, S. (Silesia U.) ; Koziel, M. (Frankfurt U.) ; Krasnoperov, A. (Dubna, JINR) ; Kucewicz, W. (AGH-UST, Cracow) ; Kuich, M. (Warsaw U.) ; Kurepin, A. (Moscow, INR) ; Larsen, D. (Jagiellonian U. (main)) ; László, A. (Wigner RCP, Budapest) ; Lazareva, T.V. (St. Petersburg State U.) ; Lewicki, M. (Wroclaw U.) ; Łojek, K. (Jagiellonian U. (main)) ; Lyubushkin, V.V. (Dubna, JINR) ; Maćkowiak-Pawłowska, M. (Warsaw U. of Tech.) ; Majka, Z. (Jagiellonian U. (main)) ; Maksiak, B. (NCBJ, Warsaw) ; Malakhov, A.I. (Dubna, JINR) ; Marcinek, A. (Cracow, INP) ; Marino, A.D. (Colorado U.) ; Marton, K. (Wigner RCP, Budapest) ; Mathes, H.J. (KIT, Karlsruhe) ; Matulewicz, T. (Warsaw U.) ; Matveev, V. (Dubna, JINR) ; Melkumov, G.L. (Dubna, JINR) ; Merzlaya, A.O. (Jagiellonian U. (main)) ; Messerly, B. (Pittsburgh U.) ; Mik, Ł. (AGH-UST, Cracow) ; Morozov, S. (Moscow, INR ; Moscow Phys. Eng. Inst.) ; Mrówczyński, S. (Jan Kochanowski U.) ; Nagai, Y. (Colorado U.) ; Naskręt, M. (Wroclaw U.) ; Ozvenchuk, V. (Cracow, INP) ; Paolone, V. (Pittsburgh U.) ; Petukhov, O. (Moscow, INR) ; Płaneta, R. (Jagiellonian U. (main)) ; Podlaski, P. (Warsaw U.) ; Popov, B.A. (Paris U., VI-VII ; Dubna, JINR) ; Porfy, B. (Wigner RCP, Budapest) ; Posiadała-Zezula, M. (Warsaw U.) ; Prokhorova, D.S. (St. Petersburg State U.) ; Pszczel, D. (NCBJ, Warsaw) ; Puławski, S. (Silesia U.) ; Puzović, J. (Belgrade U.) ; Ravonel, M. (Geneva U.) ; Renfordt, R. (Frankfurt U.) ; Röhrich, D. (Bergen U.) ; Rondio, E. (NCBJ, Warsaw) ; Roth, M. (KIT, Karlsruhe) ; Rumberger, B.T. (Colorado U.) ; Rumyantsev, M. (Dubna, JINR) ; Rustamov, A. (NNRC, Baku ; Frankfurt U.) ; Rybczynski, M. (Jan Kochanowski U.) ; Rybicki, A. (Cracow, INP) ; Sadovsky, A. (Moscow, INR) ; Schmidt, K. (Silesia U.) ; Selyuzhenkov, I. (Moscow Phys. Eng. Inst.) ; Seryakov, A.Yu. (St. Petersburg State U.) ; Seyboth, P. (Jan Kochanowski U.) ; Słodkowski, M. (Warsaw U. of Tech.) ; Staszel, P. (Jagiellonian U. (main)) ; Stefanek, G. (Jan Kochanowski U.) ; Stepaniak, J. (NCBJ, Warsaw) ; Strikhanov, M. (Moscow Phys. Eng. Inst.) ; Ströbele, H. (Frankfurt U.) ; Šuša, T. (Boskovic Inst., Zagreb) ; Taranenko, A. (Moscow Phys. Eng. Inst.) ; Tefelska, A. (Warsaw U. of Tech.) ; Tefelski, D. (Warsaw U. of Tech.) ; Tereshchenko, V. (Dubna, JINR) ; Toia, A. (Frankfurt U.) ; Tsenov, R. (Sofiya U.) ; Turko, L. (Wroclaw U.) ; Ulrich, R. (KIT, Karlsruhe) ; Unger, M. (KIT, Karlsruhe) ; Uzhva, D. (St. Petersburg State U.) ; Valiev, F.F. (St. Petersburg State U.) ; Veberič, D. (KIT, Karlsruhe) ; Vechernin, V.V. (St. Petersburg State U.) ; Wickremasinghe, A. (Fermilab ; Pittsburgh U.) ; Włodarczyk, Z. (Jan Kochanowski U.) ; Wojcik, K. (Silesia U.) ; Wyszyński, O. (Jan Kochanowski U.) ; Zimmerman, E.D. (Colorado U.) ; Zwaska, R. (Fermilab)

Publication 2020-12-14
Imprint 01 Jun 2020
Number of pages 20
Note 28 pages, 17 figures, applied corrections after journal review
In: Eur. Phys. J. C 80 (2020) 1151
DOI 10.1140/epjc/s10052-020-08675-4
Subject category Particle Physics - Experiment ; Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; SHINE NA61
Free keywords relativistic heavy ion physics ; quark gluon plasma ; particle correlations and fluctuations ; experimental results ; hadron correlations, Be+Be collisions, CERN SPS, NA61/SHINE
Abstract A measurement of charged hadron pair correlations in two-dimensional $\Delta\eta \Delta\phi$ space is presented. The analysis is based on total 30 million central Be+Be collisions observed in the NA61/SHINE detector at the CERN SPS for incident beam momenta of 19$A$, 30$A$, 40$A$, 75$A$, and 150$A$ GeV/$c$. Measurements were carried out for unlike-sign and like-sign charge hadron pairs independently. The $C(\Delta\eta,\Delta\phi)$ correlation functions were compared with results from a similar analysis on p+p interactions at similar beam momenta per nucleon. General trends of the back-to-back correlations are similar in central Be+Be collisions and p+p interactions, but are suppressed in magnitude due to the increased combinatorial background. Predictions from the EPOS and UrQMD models are compared to the measurements. Evolution of an enhancement around $(\Delta\eta,\Delta\phi) = (0,0)$ with incident energy is observed in central Be+Be collisions. It is not predicted by both models and almost non-existing in proton-proton collisions at the same momentum per nucleon.
Copyright/License preprint: © 2020-2024 CERN (Licenses: CC-BY-4.0, arXiv nonexclusive-distrib 1.0)
publication: © 2020-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³



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