Spectra and mean multiplicities of π- in central 40Ar+45Sc collisions at 13A, 19A, 30A, 40A, 75A and 150AGeV/c beam momenta measured by the NA61/SHINE spectrometer at the CERN SPS

(NA61/SHINE Collaboration) Acharya, A; Adhikary, H; Allison, KK; Andronov, E; Babkin, ; Baszczyk, M; Bhosale, S; Blondel, A; Bogomilov, M; Brandin, A; Bravar, A; Brzychczyk, J; Buryakov, M; Busygina, O; Bzdak, A; Cherif, H; Csanad, M; Cybowska, J; Czopowicz, T; Damyanova, A; Davis, N; Deliyergiyev, M; Deveaux, M; Dmitriev, A; Dominik, W; Dorosz, P; Dumarchez, J; Engel, R; Feofilov, GA; Fields, L; Fodor, Z; Garibov, A; Golosov, O; Golovatyuk, ; Golubeva, M; Grebieszkow, K; Guber, F; Haesler, A; Igolkin, SN; Ilieva, S; Ivashkin, A; Johnson, SR; Kadija, K; Kargin, N; Kashirin, E; Kireyeu, VA; Klochkov, ; Kolesnikov, V; Kolev, D; Korzenev, A; Kovalenko, VN; Kowalski, S; Koziel, M; Krasnoperov, A; Kucewicz, W; Kuich, M; Kurepin, A; Larsen, D; László, A; Lazareva, T; Lewicki, M; Lyubushkin, VV; Mackowiak-Pawlowska, M; Majka, Z; Maksiak, B; Malakhov, A; Marcinek, A; Marino, AD; Marton, K; Mathes, HJ; Matulewicz, T; Matveev, ; Melkumov, GL; Merzlaya, AO; Morozov, S; Nagai, Y; Ozvenchuk, ; Paolone, ; Petukhov, O; Pidhurskyi, ; Planeta, R; Podlaski, P; Popov, BA; Porfy, B; Prokhorova, DS; Pszczel, D; Pulawski, S; Puzovic, J; Ravonel, M; Renfordt, R; Röhrich, D; Rondio, E; Roth, M; Rumberger, BT; Rumyantsev, M; Rustamov, A; Rybczynski, M; Rybicki, A; Sadhu, S; Sadovsky, A; Schmidt, K; Selyuzhenkov, ; Seryakov, AY; Seyboth, P; Staszel, P; Stefanek, G; Stepaniak, J; Strikhanov, M; Ströbele, H; Susa, T; Taranenko, A; Tefelska, A; Tefelski, D; Tereshchenko, ; Toia, A; Tsenov, R; Turko, L; Ulrich, R; Unger, M; Uzhva, D; Valiev, FF; Veberie, D; Vechernin, VV; Wickremasinghe, A; Wójcik, K; Wyszynski, O; Zaitsev, A; Zimmerman, ED; Zwaska, R (2021) Spectra and mean multiplicities of π- in central 40Ar+45Sc collisions at 13A, 19A, 30A, 40A, 75A and 150AGeV/c beam momenta measured by the NA61/SHINE spectrometer at the CERN SPS. European Physical Journal C, 81 (5). ISSN 1434-6044

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Abstract

The physics goal of the strong interaction program of the NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) is to study the phase diagram of hadronic matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents differential inclusive spectra of transverse momentum, transverse mass and rapidity of pi(-) mesons produced in central Ar-40+Sc-45 collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150A GeV/c. Energy and system size dependence of parameters of these distributions - mean transversemass, the inverse slope parameter of transverse mass spectra, width of the rapidity distribution and mean multiplicity - are presented and discussed. Furthermore, the dependence of the ratio of the mean number of produced pions to the mean number of wounded nucleons on the collision energy was derived. The results are compared to predictions of several models.

Item Type:	Article
Uncontrolled Keywords:	CERN; Super Proton Synchrotron; SPS
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Centre for detectors, sensors and electronics Division of Experimental Physics
Depositing User:	Ana Zečević
Date Deposited:	27 Mar 2024 11:19
URI:	http://fulir.irb.hr/id/eprint/8739
DOI:	10.1140/epjc/s10052-021-09135-3

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