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Article
Report number arXiv:2008.06277 ; CERN-EP-2020-150
Title Measurements of $\pi^-$ production in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 150$A$ GeV/$c$ in the NA61/SHINE experiment at the CERN SPS
Related titleMeasurements of $\pi^-$ production in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 15$A$GeV/$c$ in the NA61/SHINE experiment at the CERN SPS
Author(s)

Acharya, A. (Jan Kochanowski U.) ; Adhikary, H. (Jan Kochanowski U.) ; Aduszkiewicz, A. (Warsaw U.) ; Allison, K.K. (Colorado 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.) ; 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.) ; László, A. (Wigner RCP, Budapest) ; Lazareva, T.V. (St. Petersburg State U.) ; Lewicki, M. (Wroclaw U.) ; Łojek, K. (Jagiellonian U.) ; Lyubushkin, V.V. (Dubna, JINR) ; Maćkowiak-Pawłowska, M. (Warsaw U. of Tech.) ; Majka, Z. (Jagiellonian U.) ; Maksiak, B. (NCBJ, Swierk) ; 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.) ; Messerly, B. (Pittsburgh U.) ; Mik, L. (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.) ; Podlaski, P. (Warsaw U.) ; Popov, B.A. (Dubna, JINR ; Paris U., VI-VII) ; Porfy, B. (Wigner RCP, Budapest) ; Posiadała-Zezula, M. (Warsaw U.) ; Prokhorova, D.S. (St. Petersburg State U.) ; Pszczel, D. (NCBJ, Swierk) ; Puławski, S. (Silesia U.) ; Puzović, J. (Belgrade U.) ; Ravonel, M. (Geneva U.) ; Renfordt, R. (Frankfurt U.) ; Röhrich, D. (Bergen U.) ; Rondio, E. (NCBJ, Swierk) ; 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) ; Sadhu, S. (Jan Kochanowski U.) ; 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.) ; Stefanek, G. (Jan Kochanowski U.) ; Stepaniak, J. (NCBJ, Swierk) ; 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. (Pittsburgh U. ; Fermilab) ; Włodarczyk, Z. (Jan Kochanowski U.) ; Wojcik, K. (Silesia U.) ; Wyszyński, O. (Jan Kochanowski U.) ; Zimmerman, E.D. (Colorado U.) ; Zwaska, R. (Fermilab)

Corporate author(s) The NA61 collaboration
Publication 2020-10-19
Imprint 09 Aug 2020
Number of pages 31
Published in: Eur. Phys. J. C
DOI 10.1140/epjc/s10052-020-08514-6
10.1140/epjc/s10052-021-08926-y
Subject category Particle Physics - Experiment ; Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; SHINE NA61
Keywords QCD ; relativistic heavy ion physics ; quark gluon plasma ; pion production, Be+Be collisions, CERN SPS, NA61/SHINE
Abstract The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset of deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra and mean multiplicities of $\pi^{-}$ mesons produced in the 5% most $central$ $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$ obtained by the so-called $h^-$ method which does not require any particle identification. The shape of the transverse mass spectra differs from the shapes measured in central Pb+Pb collisions and inelastic $p$+$p$ interactions. The normalized width of the rapidity distribution decreases with increasing collision energy and is in between the results for inelastic nucleon-nucleon and central Pb+Pb collisions. The mean multiplicity of pions per wounded nucleon in $central$ $^7$Be+$^9$Be collisions is close to that in central Pb+Pb collisions up to 75$A$ GeV/$c$. However, at the top SPS energy the result is close to the one for inelastic nucleon-nucleon interactions. The results are discussed in the context of predictions for the onset of deconfinement at the CERN SPS collision energies.
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preprint: © 2020-2024 CERN (Licenses: arXiv nonexclusive-distrib 1.0, CC-BY-4.0)
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 Element opprettet 2020-08-09, sist endret 2024-10-30


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