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Measurements of $\pi ^\pm $, $K^\pm $, p and $\bar{p}$ spectra in $^7$Be+$^9$Be collisions at beam momenta from 19A to 150A ${\mathrm{Ge} \mathrm{V}}\!/\!c$ with the NA61/SHINE spectrometer at the CERN SPS

NA61/SHINE Collaboration; Acharya, A.; Adhikary, H.; Aduszkiewicz, A.; Allison, K. K.; Andronov, E. V.; Antićić, T.; Babkin, V.; Baszczyk, M.; Bhosale, S.; Blondel, A.; Bogomilov, M.; Brandin, A.; Bravar, A.; Bryliński, W.; Brzychczyk, J.; Buryakov, M.; Busygina, O.; Bzdak, A.; Cherif, H.; Ćirković, M.; ... mehr

Abstract:
The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) studies the onset of deconfinement in hadron 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 results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of π ±
π±
, K ±

, p and p ¯

produced in the 20% most central 7
7
Be+ 9
9
Be collisions at beam momenta of 19A, 30A, 40A, 75A and 150A GeV/c
GeV/c
. The energy dependence of the K ±

/π ±
π±
ratios as well as of inverse slope parameters of the K ±

transverse mass distributions are close to those found in inelastic p+p reactions. The new results are compared to the world data on p+p and Pb+Pb collisions as well as to predictions of the Epos, Urqmd, Ampt, Phsd and Smash models.

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Verlagsausgabe §
DOI: 10.5445/IR/1000129498
Veröffentlicht am 09.02.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2021
Sprache Englisch
Identifikator ISSN: 1434-6044, 1434-6052
KITopen-ID: 1000129498
HGF-Programm 51.13.03 (POF IV, LK 01) Kosmische Strahlung Auger
Erschienen in The European physical journal / C
Verlag Springer Verlag
Band 81
Heft 1
Seiten Art.-Nr.: 73
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 22.01.2021
Nachgewiesen in Dimensions
Scopus
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