Two-particle correlations in azimuthal angle and pseudorapidity in inelastic p + p interactions at the CERN Super Proton Synchrotron

The European Physical Journal C, Jan 2017

Results on two-particle \(\Delta \eta \Delta \phi \) correlations in inelastic p + p interactions at 20, 31, 40, 80, and 158 GeV/c are presented. The measurements were performed using the large acceptance NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The data show structures which can be attributed mainly to effects of resonance decays, momentum conservation, and quantum statistics. The results are compared with the Epos and UrQMD models.

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Two-particle correlations in azimuthal angle and pseudorapidity in inelastic p + p interactions at the CERN Super Proton Synchrotron

Eur. Phys. J. C Two-particle correlations in azimuthal angle and pseudorapidity in inelastic p + p interactions at the CERN Super Proton Synchrotron A. Aduszkiewicz 1 Y. Ali 3 24 E. Andronov 12 T. Antic´ic´ N. Antoniou 22 B. Baatar 11 F. Bay 26 A. Blondel 28 M. Bogomilov 14 A. Brandin 11 A. Bravar 28 J. Brzychczyk 3 S. A. Bunyatov 9 O. Busygina 10 P. Christakoglou 22 M. C´irkovic´ 13 T. Czopowicz 0 A. Damyanova 28 N. Davis 5 H. Dembinski 19 M. Deveaux 17 F. Diakonos 22 S. Di Luise 26 W. Dominik 1 J. Dumarchez 20 R. Engel 19 A. Ereditato 27 G. A. Feofilov 12 Z. Fodor 2 21 A. Garibov 15 M. Gaz´dzicki 8 17 M. Golubeva 10 K. Grebieszkow 0 A. Grzeszczuk 4 F. Guber 10 A. Haesler 28 T. Hasegawa 16 E. Kaptur 4 M. Kiełbowicz 5 J. Kisiel 4 N. Knezevic´ 13 T. Kobayashi 16 V. I. Kolesnikov 9 D. Kolev 14 V. P. Kondratiev 12 A. Korzenev 28 V. Kovalenko 12 K. Kowalik 6 S. Kowalski 4 M. Koziel 17 A. Krasnoperov 9 M. Kuich 1 A. Kurepin 10 D. Larsen 3 A. László 21 M. Lewicki 2 B. Lundberg 29 V. V. Lyubushkin 9 M. Mac´kowiak-Pawłowska 0 B. Maksiak 0 A. I. Malakhov 9 D. Manic´ 13 A. Marchionni 29 A. Marcinek 2 3 A. D. Marino 23 K. Marton 21 H.-J. Mathes 19 T. Matulewicz 1 V. Matveev 9 G. L. Melkumov 9 A. Merzlaya 12 B. Messerly 25 G. B. Mills 30 S. Morozov 10 11 S. Mrówczy n´ski 8 Y. Nagai 23 T. Nakadaira 16 M. Naskre˛t 2 M. Nirkko 27 K. Nishikawa 16 V. Ozvenchuk 5 A. D. Panagiotou 22 V. Paolone 25 M. Pavin 20 O. Petukhov 10 11 C. Pistillo 27 R. Płaneta 3 B. A. Popov 9 20 M. Posiadała 1 S. Puławski 4 J. Puzovic´ 13 R. Rameika 29 W. Rauch 18 M. Ravonel 28 A. Redij 27 R. Renfordt 17 E. Richter-Wa˛s 3 A. Robert 20 D. Röhrich 7 E. Rondio 6 M. Roth 19 A. Rubbia 26 B. T. Rumberger 23 A. Rustamov 15 17 M. Rybczynski 8 A. Rybicki 5 A. Sadovsky 10 K. Sakashita 16 R. Sarnecki 0 K. Schmidt 4 T. Sekiguchi 16 I. Selyuzhenkov 11 A. Seryakov 12 P. Seyboth 8 D. Sgalaberna 26 M. Shibata 16 M. Słodkowski 0 P. Staszel 3 G. Stefanek 8 J. Stepaniak 6 H. Ströbele 17 T. Šuša M. Szuba 19 M. Tada 16 A. Taranenko 11 A. Tefelska 0 D. Tefelski 0 V. Tereshchenko 9 R. Tsenov 14 L. Turko 2 R. Ulrich 19 M. Unger 19 M. Vassiliou 22 D. Vebericˇ 19 V. V. Vechernin 12 G. Vesztergombi 21 L. Vinogradov 12 M. Walewski 1 E. D. Zimmerman 23 R. Zwaska 29 0 Warsaw University of Technology , Warsaw , Poland 1 University of Warsaw , Warsaw , Poland 2 University of Wrocław , Wrocław , Poland 3 Jagiellonian University , Cracow , Poland 4 University of Silesia , Katowice , Poland 5 H. Niewodniczan ́ski Institute of Nuclear Physics of the Polish Academy of Sciences , Kraków , Poland 6 National Centre for Nuclear Research , Warsaw , Poland 7 University of Bergen , Bergen , Norway 8 Jan Kochanowski University in Kielce , Kielce , Poland 9 Joint Institute for Nuclear Research , Dubna , Russia 10 Institute for Nuclear Research , Moscow , Russia 11 National Research Nuclear University (Moscow Engineering Physics Institute) , Moscow , Russia 12 St. Petersburg State University , St. Petersburg , Russia 13 University of Belgrade , Belgrade , Serbia 14 Faculty of Physics, University of Sofia , Sofia , Bulgaria 15 National Nuclear Research Center , Baku , Azerbaijan 16 Institute for Particle and Nuclear Studies , Tsukuba , Japan 17 University of Frankfurt , Frankfurt , Germany 18 Fachhochschule Frankfurt , Frankfurt , Germany 19 Karlsruhe Institute of Technology , Karlsruhe , Germany 20 LPNHE, University of Paris VI and VII , Paris , France 21 Wigner Research Centre for Physics of the Hungarian Academy of Sciences , Budapest , Hungary 22 University of Athens , Athens , Greece 23 University of Colorado , Boulder , USA 24 Present address: COMSATS Institute of Information Technology , Islamabad , Pakistan 25 University of Pittsburgh , Pittsburgh , USA 26 ETH Zürich , Zürich , Switzerland 27 University of Bern , Bern , Switzerland 28 University of Geneva , Geneva , Switzerland 29 Fermilab , Batavia , USA 30 Los Alamos National Laboratory , Los Alamos , USA - Received: 4 October 2016 / Accepted: 1 January 2017 © The Author(s) 2017. This article is published with open access at Springerlink.com Abstract Results on two-particle η φ correlations in inelastic p + p interactions at 20, 31, 40, 80, and 158 GeV/c are presented. The measurements were performed using the large acceptance NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The data show structures which can be attributed mainly to effects of resonance decays, momentum conservation, and quantum statistics. The results are compared with the Epos and UrQMD models. 1 Introduction and motivation This paper presents experimental results on two-particle correlations in pseudorapidity and azimuthal angle of charged particles produced in inelastic p + p interactions at 20, 31, 40, 80, and 158 GeV/c. The measurements were performed by the multi-purpose NA61/SHINE [1,2] experiment at the CERN Super Proton Synchrotron (SPS). They are part of the strong interactions programme devoted to the study of the properties of th (...truncated)


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A. Aduszkiewicz, Y. Ali, E. Andronov, T. Antićić. Two-particle correlations in azimuthal angle and pseudorapidity in inelastic p + p interactions at the CERN Super Proton Synchrotron, The European Physical Journal C, 2017, pp. 59, Volume 77, Issue 2, DOI: 10.1140/epjc/s10052-017-4599-x