Главная страница > CERN Experiments > Fixed Target Experiments > NA61 > NA61 Papers > Multiplicity and transverse momentum fluctuations in inelastic proton-proton interactions at the CERN Super Proton Synchrotron |
Article | |
Report number | arXiv:1510.00163 ; CERN-PH-EP-2015-273 ; CERN-PH-EP-2015-273 |
Title | Multiplicity and transverse momentum fluctuations in inelastic proton-proton interactions at the CERN Super Proton Synchrotron |
Author(s) |
Aduszkiewicz, A. (Warsaw U.) ; Ali, Y. (Jagiellonian U.) ; Andronov, E. (St. Petersburg State U.) ; Antićić, T. (Boskovic Inst., Zagreb) ; Antoniou, N. (Athens U.) ; Baatar, B. (Dubna, JINR) ; Bay, F. (ETH, Zurich (main)) ; Blondel, A. (Geneva U.) ; Blümer, J. (KIT, Karlsruhe) ; Bogomilov, M. (Sofiya U.) ; Bravar, A. (Geneva U.) ; Brzychczyk, J. (Jagiellonian U.) ; Bunyatov, S.A. (Dubna, JINR) ; Busygina, O. (Moscow, INR) ; Christakoglou, P. (Athens U.) ; Cirković, M. (Belgrade U.) ; Czopowicz, T. (Warsaw U. of Tech.) ; Davis, N. (Athens U.) ; Debieux, S. (Geneva U.) ; Dembinski, H. (KIT, Karlsruhe) ; Deveaux, M. (Frankfurt U.) ; Diakonos, F. (Athens U.) ; Di Luise, S. (ETH, Zurich (main)) ; Dominik, W. (Warsaw U.) ; Dumarchez, J. (Paris U., VI-VII) ; Dynowski, K. (Warsaw U. of Tech.) ; Engel, R. (KIT, Karlsruhe) ; Ereditato, A. (Bern U.) ; Feofilov, G.A. (St. Petersburg State U.) ; Fodor, Z. (Wigner RCP, Budapest ; Wroclaw U.) ; Garibov, A. (NNRC, Baku) ; Gaździcki, M. (Frankfurt U. ; Jan Kochanowski U.) ; Golubeva, M. (Moscow, INR) ; Grebieszkow, K. (Warsaw U. of Tech.) ; Grzeszczuk, A. (Silesia U.) ; Guber, F. (Moscow, INR) ; Haesler, A. (Geneva U.) ; Hasegawa, T. (KEK, Tsukuba) ; Herve, A. (KIT, Karlsruhe) ; Hierholzer, M. (Bern U.) ; Igolkin, S. (St. Petersburg State U.) ; Ivashkin, A. (Moscow, INR) ; Kadija, K. (Boskovic Inst., Zagreb) ; Kapoyannis, A. (Athens U.) ; Kaptur, E. (Silesia U.) ; Kisiel, J. (Silesia U.) ; Kobayashi, T. (KEK, Tsukuba) ; Kolesnikov, V.I. (Dubna, JINR) ; Kolev, D. (Sofiya U.) ; Kondratiev, V.P. (St. Petersburg State U.) ; Korzenev, A. (Geneva U.) ; Kowalik, K. (NCBJ, Swierk) ; Kowalski, S. (Silesia U.) ; Koziel, M. (Frankfurt U.) ; Krasnoperov, A. (Dubna, JINR) ; Kuich, M. (Warsaw U.) ; Kurepin, A. (Moscow, INR) ; Larsen, D. (Jagiellonian U.) ; László, A. (Wigner RCP, Budapest) ; Lewicki, M. (Wroclaw U.) ; Lyubushkin, V.V. (Dubna, JINR) ; Maćkowiak-Pawłowska, M. (Warsaw U. of Tech.) ; Maksiak, B. (Warsaw U. of Tech.) ; Malakhov, A.I. (Dubna, JINR) ; Manić, D. (Belgrade U.) ; Marcinek, A. (Jagiellonian U. ; Wroclaw U.) ; Marton, K. (Wigner RCP, Budapest) ; Mathes, H.J. (KIT, Karlsruhe) ; Matulewicz, T. (Warsaw U.) ; Matveev, V. (Dubna, JINR) ; Melkumov, G.L. (Dubna, JINR) ; Morozov, S. (Moscow, INR) ; Mrówczyński, S. (Jan Kochanowski U.) ; Nakadaira, T. (KEK, Tsukuba) ; Naskręt, M. (Wroclaw U.) ; Nirkko, M. (Bern U.) ; Nishikawa, K. (KEK, Tsukuba) ; Panagiotou, A.D. (Athens U.) ; Pavin, M. (Boskovic Inst., Zagreb ; Paris U., VI-VII) ; Petukhov, O. (Moscow, INR) ; Pistillo, C. (Bern U.) ; Płaneta, R. (Jagiellonian U.) ; Popov, B.A. (Paris U., VI-VII ; Dubna, JINR) ; Posiadała, M. (Warsaw U.) ; Puławski, S. (Silesia U.) ; Puzović, J. (Belgrade U.) ; Rauch, W. (Fachhochschule Frankfurt) ; Ravonel, M. (Geneva U.) ; Redij, A. (Bern U.) ; Renfordt, R. (Frankfurt U.) ; Richter-Was, E. (Jagiellonian U.) ; Robert, A. (Paris U., VI-VII) ; Röhrich, D. (Bergen U.) ; Rondio, E. (NCBJ, Swierk) ; Roth, M. (KIT, Karlsruhe) ; Rubbia, A. (ETH, Zurich (main)) ; Rustamov, A. (NNRC, Baku ; Frankfurt U.) ; Rybczynski, M. (Jan Kochanowski U.) ; Sadovsky, A. (Moscow, INR) ; Sakashita, K. (KEK, Tsukuba) ; Sarnecki, R. (Warsaw U. of Tech.) ; Schmidt, K. (Silesia U.) ; Sekiguchi, T. (KEK, Tsukuba) ; Seryakov, A. (St. Petersburg State U.) ; Seyboth, P. (Jan Kochanowski U.) ; Sgalaberna, D. (ETH, Zurich (main)) ; Shibata, M. (KEK, Tsukuba) ; Słodkowski, M. (Warsaw U. of Tech.) ; Staszel, P. (Jagiellonian U.) ; Stefanek, G. (Jan Kochanowski U.) ; Stepaniak, J. (NCBJ, Swierk) ; Ströbele, H. (Frankfurt U.) ; Šuša, T. (Boskovic Inst., Zagreb) ; Szuba, M. (KIT, Karlsruhe) ; Tada, M. (KEK, Tsukuba) ; Tefelska, A. (Warsaw U. of Tech.) ; Tefelski, D. (Warsaw U. of Tech.) ; Tereshchenko, V. (Dubna, JINR) ; Tsenov, R. (Sofiya U.) ; Turko, L. (Wroclaw U.) ; Ulrich, R. (KIT, Karlsruhe) ; Unger, M. (KIT, Karlsruhe) ; Vassiliou, M. (Athens U.) ; Veberič, D. (KIT, Karlsruhe) ; Vechernin, V.V. (St. Petersburg State U.) ; Vesztergombi, G. (Wigner RCP, Budapest) ; Vinogradov, L. (St. Petersburg State U.) ; Wilczek, A. (Silesia U.) ; Wlodarczyk, Z. (Jan Kochanowski U.) ; Wojtaszek-Szwarc, A. (Jan Kochanowski U.) ; Wyszyński, O. (Jagiellonian U.) ; Zambelli, L. (Paris U., VI-VII ; KEK, Tsukuba) |
Publication | 2016-11-21 |
Imprint | 6 Oct 2015 |
Number of pages | 17 |
Note | 18 pages, 12 figures |
In: | Eur. Phys. J. C 76 (2016) 635 |
DOI | 10.1140/epjc/s10052-016-4450-9 |
Subject category | Particle Physics - Experiment |
Accelerator/Facility, Experiment | CERN SPS ; SHINE NA61 |
Free keywords | relativistic heavy ion physics ; quark gluon plasma ; particle correlations and fluctuations ; experimental results ; proton-proton interactions, multiplicity and transverse momentum fluctuations |
Abstract | Measurements of multiplicity and transverse momentum fluctuations of charged particles were performed in inelastic p+p interactions at 20, 31, 40, 80 and 158 GeV/c beam momentum. Results for the scaled variance of the multiplicity distribution and for three strongly intensive measures of multiplicity and transverse momentum fluctuations $\Delta[P_{T},N]$, $\Sigma[P_{T},N]$ and $\Phi_{p_T}$ are presented. For the first time the results on fluctuations are fully corrected for experimental biases. The results on multiplicity and transverse momentum fluctuations significantly deviate from expectations for the independent particle production. They also depend on charges of selected hadrons. The string-resonance Monte Carlo models EPOS and UrQMD do not describe the data. The scaled variance of multiplicity fluctuations is significantly higher in inelastic p+p interactions than in central Pb+Pb collisions measured by NA49 at the same energy per nucleon. This is in qualitative disagreement with the predictions of the Wounded Nucleon Model. Within the statistical framework the enhanced multiplicity fluctuations in inelastic p+p interactions can be interpreted as due to event-by-event fluctuations of the fireball energy and/or volume. |
Copyright/License | preprint: © 2015-2025 CERN (License: CC-BY-4.0) publication: © 2016-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³ |