Measurements of π±, K±, p and (p)over-bar spectra in 40Ar+45Sc collisions at 13A to 150A GeV/c

(NA61/SHINE) Adhikary, H; Adrich, P; Allison, KK; Amin, N; Andronov, EV; Anticic, T; Arsene, IC; Bajda, M; Balkova, Y; Baszczyk, M; Battaglia, D; Bazgir, A; Bhosale, S; Bielewicz, M; Blondel, A; Bogomilov, M; Bondar, Y; Bostan, N; Brandin, A; Brylinski, W; Brzychczyk, J; Buryakov, M; Camino, AF; Cirkovic, M; Csanád, M; Cybowska, J; Czopowicz, T; Dalmazzone, C; Davis, N; Dmitriev, A; von Doetinchem, P; Dominik, W; Dorosz, P; Dumarchez, J; Engel, R; Feofilov, GA; Fields, L; Fodor, Z; Friend, M; Gazdzicki, M; Golosov, O; Golovatyuk, V; Golubeva, M; Grebieszkow, K; Guber, F; Igolkin, SN; Ilieva, S; Ivashkin, A; Izvestnyy, A; Kadija, K; Kargin, N; Karpushkin, N; Kashirin, E; Kielbowicz, M; Kireyeu, VA; Kitagawa, H; Kolesnikov, R; Kolev, D; Koshio, Y; Kovalenko, VN; Kowalski, S; Kozlowski, B; Krasnoperov, A; Kucewicz, W; Kuchowicz, M; Kuich, M; Kurepin, A; László, A; Lewicki, M; Lykasov, G; Lyubushkin, VV; Mackowiak-Pawlowska, M; Majka, Z; Makhnev, A; Maksiak, B; Malakhov, AI; Marcinek, A; Marino, AD; Mathes, HJ; Matulewicz, T; Matveev, V; Melkumov, GL; Merzlaya, A; Mik, L; Morawiec, A; Morozov, S; Nagai, Y; Nakadaira, T; Naskret, M; Nishimori, S; Ozvenchuk, V; Panova, O; Paolone, V; Petukhov, O; Pidhurskyi, I; Planeta, R; Podlaski, P; Popov, BA; Pórfy, B; Posiadala-Zezula, M; Prokhorova, DS; Pszczel, D; Pulawski, S; Puzovic, J; Renfordt, R; Ren, L; Ortiz, VZR; Röhrich, D; Rondio, E; Roth, M; Rozplochowski, L; Rumberger, BT; Rumyantsev, M; Rustamov, A; Rybczynski, M; Rybicki, A; Sakashita, K; Schmidt, K; Seryakov, AY; Seyboth, P; Shah, UA; Shiraishi, Y; Shukla, A; Slodkowski, M; Staszel, P; Stefanek, G; Stepaniak, J; Strikhanov, M; Ströbele, H; Susa, T; Swiderski, L; Szewinski, J; Szukiewicz, R; Taranenko, A; Tefelska, A; Tefelski, D; Tereshchenko, V; Toia, A; Tsenov, R; Turko, L; Tveter, TS; Unger, M; Urbaniak, M; Valiev, FF; Veberic, D; Vechernin, VV; Volkov, V; Wickremasinghe, A; Wójcik, K; Wyszynski, O; Zaitsev, A; Zimmerman, ED; Zviagina, A; Zwaska, R (2024) Measurements of π±, K±, p and (p)over-bar spectra in 40Ar+45Sc collisions at 13A to 150A GeV/c. The European Physical Journal C, 84 (4). ISSN 1434-6044

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Abstract

The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energyscan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of pi(+/-), K-+/-, p and (p) over bar produced in Ar-40+Sc-45 collisions at beam momenta of 13A,19A,30A,40A,75Aand 150AGeV/c. The analysis uses the 10% mostcentral collisions, where the observed forward energy definescentrality. The energy dependence of the K-+/-/pi(+/-) ratios aswell as of inverse slope parameters of the K-+/- transverse mass distributions are placed in between those found in inelastic p + p and central Pb + Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models.

Item Type:	Article
Uncontrolled Keywords:	CERN; SPS; NA61/SHINE; Ar+Sc; particle production
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Centre for detectors, sensors and electronics Division of Experimental Physics
Depositing User:	Ema Buhin Šaler
Date Deposited:	14 Apr 2026 06:45
URI:	http://fulir.irb.hr/id/eprint/11680
DOI:	10.1140/epjc/s10052-024-12602-2

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