Statistical hadron-gas treatment of systems created in proton-proton interactions at energies available at the CERN Super Proton Synchrotron

被引：11

作者：

Begun, V. V. ^{[1
]}

Vovchenko, V. ^{[2
,3
]}

Gorenstein, M., I ^{[3
,4
]}

Stoecker, H. ^{[2
,3
,5
]}

机构：

[1] Warsaw Univ Technol, Fac Phys, Koszykowa 75, PL-00662 Warsaw, Poland

[2] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany

[3] Giersch Sci Ctr, Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

[4] Bogolyubov Inst Theoret Phys, UA-03680 Kiev, Ukraine

[5] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

来源：

PHYSICAL REVIEW C | 2018年 / 98卷 / 05期

关键词：

PLUS PB COLLISIONS; 158; GEV/C; SPECTRA; VOLUME; HADRONIZATION; SHARE; MODEL;

D O I：

10.1103/PhysRevC.98.054909

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We analyze the newest data from the NA61/SHINE Collaboration which, in addition to previous results on pions and kaons, include mean multiplicities of p, Lambda, and phi mesons produced in inelastic proton-proton (p + p) interactions at root S-NN = 6.3-17.3 GeV. The canonical ensemble formulation of the ideal hadron resonance gas (HRG) model is used with exact conservation of net baryon number B = 2, electric charge Q = 2, and strangeness S = 0. The chemical freeze-out parameters in p + p interactions are obtained and compared to those in central nucleus-nucleus collisions. Several features of p + p interactions at the CERN Super Proton Synchrotron within a statistical model are studied: (1) the inclusion of the phi-meson yields in thermal fits worsens significantly the fit quality; (2) the data show large event-by-event multiplicity fluctuations in inelastic p + p interactions which cannot be explained by a single fireball described by a statistical model; and (3) the fits within the canonical ensemble formulation of HRG do not give any improvement over the fits within the grand canonical ensemble formulation, i.e., there are no indications of the existence of a single statistical system in p + p inelastic interactions in the considered energy range.

引用

页数：9

共 64 条

[1] NA61/SHINE facility at the CERN SPS: beams and detector system [J].

Abgrall, N. ;

Andreeva, O. ;

Aduszkiewicz, A. ;

Ali, Y. ;

Anticic, T. ;

Antoniou, N. ;

Baatar, B. ;

Bay, F. ;

Blondel, A. ;

Blumer, J. ;

Bogomilov, M. ;

Bogusz, M. ;

Bravar, A. ;

Brzychczyk, J. ;

Bunyatov, S. A. ;

Christakoglou, P. ;

Cirkovic, M. ;

Czopowicz, T. ;

Davis, N. ;

Debieux, S. ;

Dembinski, H. ;

Diakonos, F. ;

Di Luise, S. ;

Dominik, W. ;

Drozhzhova, T. ;

Dumarchez, J. ;

Dynowski, K. ;

Engel, R. ;

Efthymiopoulos, I. ;

Ereditato, A. ;

Fabich, A. ;

Feofilov, G. A. ;

Fodor, Z. ;

Fulop, A. ;

Gazdzicki, M. ;

Golubeva, M. ;

Grebieszkow, K. ;

Grzeszczuk, A. ;

Guber, F. ;

Haesler, A. ;

Hasegawa, T. ;

Hierholzer, M. ;

Idczak, R. ;

Igolkin, S. ;

Ivashkin, A. ;

Jokovic, D. ;

Kadija, K. ;

Kapoyannis, A. ;

Kaptur, E. ;

Kielczewska, D. .

JOURNAL OF INSTRUMENTATION, 2014, 9

[2]

Abgrall N, 2014, EUR PHYS J C, V74, DOI 10.1140/epjc/s10052-014-2794-6

[3] Measurements of π±, K±, p and (p)over-bar spectra in proton-proton interactions at 20, 31, 40, 80 and 158 GeV/c with the NA61/SHINE spectrometer at the CERN SPS [J].

Aduszkiewicz, A. ;

Ali, Y. ;

Andronov, E. ;

Anticic, T. ;

Baatar, B. ;

Baszczyk, M. ;

Bhosale, S. ;

Blondel, A. ;

Bogomilov, M. ;

Brandin, A. ;

Bravar, A. ;

Brzychczyk, J. ;

Bunyatov, S. A. ;

Busygina, O. ;

Cherif, H. ;

Cirkovic, M. ;

Czopowicz, T. ;

Damyanova, A. ;

Davis, N. ;

Dembinski, H. ;

Deveaux, M. ;

Dominik, W. ;

Dorosz, P. ;

Dumarchez, J. ;

Engel, R. ;

Ereditato, A. ;

Feofilov, G. A. ;

Fodor, Z. ;

Francois, C. ;

Garibov, A. ;

Gazdzicki, M. ;

Golubeva, M. ;

Grebieszkow, K. ;

Guber, F. ;

Haesler, A. ;

Herve, A. E. ;

Hylen, J. ;

Igolkin, S. ;

Ivashkin, A. ;

Johnson, S. R. ;

Kadija, K. ;

Kaptur, E. ;

Kielbowicz, M. ;

Kireyeu, V. A. ;

Klochkov, V. ;

Knezevic, N. ;

Kolesnikov, V. I. ;

Kolev, D. ;

Kondratiev, V. P. ;

Korzenev, A. .

EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (10)

[4]

Aduszkiewicz A, 2016, EUR PHYS J C, V76, DOI 10.1140/epjc/s10052-016-4003-2

[5]

Aduszkiewicz A., CERNSPSC2015036 NA61

[6]

Afanasev V., 2001, J PHYS G, V27, P367

[7] Production of φ-mesons in p + p, p + Pb and central Pb + Pb collisions at Ebeam=158 A GeV [J].

Afanasiev, SV ;

Anticic, T ;

Bächler, J ;

Barna, D ;

Barnby, LS ;

Bartke, J ;

Barton, RA ;

Betev, L ;

Bialkowska, H ;

Billmeier, A ;

Blume, C ;

Blyth, CO ;

Boimska, B ;

Bracinik, J ;

Brady, FP ;

Brun, R ;

Buncic, P ;

Carr, L ;

Cebra, D ;

Cooper, GE ;

Cramer, JG ;

Csató, P ;

Eckardt, V ;

Eckhardt, F ;

Ferenc, D ;

Fischer, HG ;

Fodor, Z ;

Foka, P ;

Freund, P ;

Friese, V ;

Ftacnik, J ;

Gál, J ;

Ganz, R ;

Gazdzicki, M ;

Gladysz, E ;

Grebieszkow, J ;

Harris, JW ;

Hegyi, S ;

Hlinka, V ;

Höhne, C ;

Igo, G ;

Ivanov, M ;

Jacobs, P ;

Janik, R ;

Jones, PG ;

Kadija, K ;

Kolesnikov, VI ;

Kowalski, M ;

Lasiuk, B ;

Lévai, P .

PHYSICS LETTERS B, 2000, 491 (1-2) :59-66

[8] Inclusive production of charged pions in p+p collisions at 158 GeV/c beam momentum [J].

Alt, C. ;

Anticic, T. ;

Baatar, B. ;

Barna, D. ;

Bartke, J. ;

Betev, L. ;

Bialkowska, H. ;

Blume, C. ;

Boimska, B. ;

Botje, M. ;

Bracinik, J. ;

Buncic, P. ;

Cerny, V. ;

Christakoglou, P. ;

Chvala, O. ;

Dinkelaker, P. ;

Dolejsi, J. ;

Eckardt, V. ;

Fischer, H. G. ;

Flierl, D. ;

Fodor, Z. ;

Foka, P. ;

Friese, V. ;

Gazdzicki, M. ;

Grebieszkow, K. ;

Hoehne, C. ;

Kadija, K. ;

Karev, A. ;

Kliemant, M. ;

Kniege, S. ;

Kolesnikov, V. I. ;

Kornas, E. ;

Korus, R. ;

Kowalski, M. ;

Kraus, I. ;

Kreps, M. ;

van Leeuwen, M. ;

Lungwitz, B. ;

Makariev, M. ;

Malakhov, A. I. ;

Mateev, M. ;

Melkumov, G. L. ;

Mitrovski, M. ;

Mrowczynski, S. ;

Palla, G. ;

Panayotov, D. ;

Petridis, A. ;

Renfordt, R. ;

Rybczynski, M. ;

Rybicki, A. .

EUROPEAN PHYSICAL JOURNAL C, 2006, 45 (02) :343-381

[9] Hadron yields, the chemical freeze-out and the QCD phase diagram [J].

Andronic, A. ;

Braun-Munzinger, P. ;

Redlich, K. ;

Stachel, J. .

16TH INTERNATIONAL CONFERENCE ON STRANGENESS IN QUARK MATTER (SQM2016), 2017, 779

[10] Decoding the phase structure of QCD via particle production at high energy [J].

Andronic, Anton ;

Braun-Munzinger, Peter ;

Redlich, Krzysztof ;

Stachel, Johanna .

NATURE, 2018, 561 (7723) :321-330

← 1 2 3 4 5 6 7 →