K_S^0 meson production in inelastic p+p interactions at 31, 40 and 80
GeV/c beam momentum measured by NA61/SHINE at the CERN SPS
N. Abgrall,H. Adhikary,P. Adrich,K. K. Allison,N. Amin,E. V. Andronov,T. Antičić,I. -C. Arsene,M. Bajda,Y. Balkova,M. Baszczyk,D. Battaglia,A. Bazgir,S. Bhosale,M. Bielewicz,A. Blondel,M. Bogomilov,Y. Bondar,N. Bostan,A. Brandin,A. Bravar,W. Brylinski,J. Brzychczyk,M. Buryakov,A. F. Camino,M. Ćirković,M. Csanad,J. Cybowska,T. Czopowicz,C. Dalmazzone,N. Davis,A. Dmitriev,P. von Doetinchem,W. Dominik,P. Dorosz,J. Dumarchez,R. Engel,G. A. Feofilov,L. Fields,Z. Fodor,M. Friend,M. Gazdzicki,O. Golosov,V. Golovatyuk,M. Golubeva,K. Grebieszkow,F. Guber,A. Haesler,S. N. Igolkin,S. Ilieva,A. Ivashkin,A. Izvestnyy,K. Kadija,N. Kargin,N. Karpushkin,E. Kashirin,M. Kiełbowicz,V. A. Kireyeu,H. Kitagawa,R. Kolesnikov,D. Kolev,A. Korzenev,Y. Koshio,V. N. Kovalenko,S. Kowalski,B. Kozłowski,A. Krasnoperov,W. Kucewicz,M. Kuchowicz,M. Kuich,A. Kurepin,A. László,M. Lewicki,G. Lykasov,V. V. Lyubushkin,M. Mackowiak-Pawłowska,Z. Majka,A. Makhnev,B. Maksiak,A. I. Malakhov,A. Marcinek,A. D. Marino,H. -J. Mathes,T. Matulewicz,V. Matveev,G. L. Melkumov,A. Merzlaya,Ł. Mik,A. Morawiec,S. Morozov,Y. Nagai,T. Nakadaira,M. Naskret,S. Nishimori,V. Ozvenchuk,O. Panova,V. Paolone,O. Petukhov,I. Pidhurskyi,R. Płaneta,P. Podlaski,B. A. Popov,B. Porfy,M. Posiadała-Zezula,D. S. Prokhorova,D. Pszczel,S. Puławski,J. Puzović,R. Renfordt,L. Ren,V. Z. Reyna Ortiz,D. Röhrich,E. Rondio,M. Roth,L. Rozplochowski,B. T. Rumberger,M. Rumyantsev,A. Rustamov,M. Rybczynski,A. Rybicki,K. Sakashita,K. Schmidt,A. Yu. Seryakov,P. Seyboth,U. A. Shah,Y. Shiraishi,A. Shukla,M. Słodkowski,P. Staszel,G. Stefanek,J. Stepaniak,M. Strikhanov,H. Ströbele,T. Šuša,L. Swiderski,J. Szewinski,R. Szukiewicz,A. Taranenko,A. Tefelska,D. Tefelski,V. Tereshchenko,A. Toia,R. Tsenov,L. Turko,T. S. Tveter,M. Unger,M. Urbaniak,F. F. Valiev,D. Veberič,V. V. Vechernin,V. Volkov,A. Wickremasinghe,K. Wójcik,O. Wyszynski,A. Zaitsev,E. D. Zimmerman,A. Zviagina,R. Zwaska
arxiv（2024）
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摘要
Measurements of K_S^0 meson production via its π^+π^- decay mode
in inelastic p+p interactions at incident projectile momenta of 31,
40 and 80 GeV/c (√(s_NN)=7.7, 8.8 and 12.3 GeV, respectively) are
presented. The data were recorded by the NA61/SHINE spectrometer at the CERN
Super Proton Synchrotron. Double-differential distributions were obtained in
transverse momentum and rapidity. The mean multiplicities of K_S^0 mesons
were determined to be (5.95 ± 0.19 (stat) ± 0.22 (sys)) × 10^-2 at
31 GeV/c, (7.61 ± 0.13 (stat) ± 0.31 (sys)) × 10^-2 at 40
GeV/c and (11.58 ± 0.12 (stat) ± 0.37 (sys)) × 10^-2 at 80
GeV/c. The results on K^0_S production are compared with model
calculations (Epos1.99, SMASH 2.0 and PHSD) as well as with published data from
other experiments.
