K^{*}(892)^0 meson production in inelastic p+p interactions at 40 and 80 text{ GeV }!/!c beam momenta measured by NA61/SHINE at the CERN SPS

I Pidhurskyi,B Maksiak,E Rondio,V Lyubushkin ,M Posiadała-Zezula,V Matveev,A Zaitsev,A Haesler,M Roth,A Toia,N Amin,D Tefelski,O Golosov,Y Bondar,A Damyanova,Maciej Piotr Lewicki ,Н Каргин ,A Dmitriev,P Seyboth,P Staszel,A Ivashkin,S Sadhu,Ф Ф Валиев ,G Feofilov ,R Tsenov,D Kolev,T Nakadaira,G L Melkumov,A Wickremasinghe,I C Arsene ,A O Merzlaya,A Korzenev,M Rybczyński ,N Bostan,A Krasnoperov,D S Prokhorova,Á László ,B Messerly,T Antičić ,V A Kireyeu,O Panova,W Dominik,Z Majka,M Rumyantsev,G I Lykasov ,K Grebieszkow,S N Igolkin,O Wyszyński,A D Marino,J Puzović,E V Andronov,Б Popov ,L Turko,H J Mathes ,B T Rumberger,H Ströbele,A Izvestnyy,M Strikhanov,A Bravar,I Selyuzhenkov,A Acharya,S Bhosale,A Blondel,K Sakashita,A Malakhov ,A Rustamov,W Kucewicz,B Kozłowski,E Kashirin,K Łojek,K Wôjcik ,Vadim Volkov ,S Kowalski,M Golubeva,A Tefelska,M M Kielbowicz ,E D Zimmerman,M Baszczyk,A V Brandin ,M Friend,P Dorosz,Trine Spedstad Tveter ,D Veberič,N Davis,A Rybicki,J Koshio,T Matulewicz,T Czopowicz,M Unger,L Fields,A Zviagina,Z Fodor,A Taranenko,S Puławski,R Engel,R Kolesnikov,V Vechernin ,J Cybowska,S V Morozov ,J Steṕaniak ,M Naskręt,S Ilieva,J Brzychczyk,R Renfordt,O Petukhov,В Коваленко ,B Pórfy ,V Paolone,R Zwaska,M Słodkowski,A Marcinek,K Márton ,V Golovatyuk,H Adhikary,D Battagia,J Dumarchez,Y Nagai,N Karpushkin,W Bryliński,M Ćirković,A Matyja,A Yu Seryakov,T Šuša,P Podlaski,V Ozvenchuk,D Röhrich,M Gaździcki,S Johnson ,А А Гарибов ,M Kuich,F Guber,M Buryakov,A Kurepin,M Csanád ,Ł Mik,M Maćkowiak-Pawłowska,K Kadija,R Płaneta,M Bogomilov,K Schmidt,А А Махнев ,D Pszczel,В Терещенко ,G Stefanek,M Ravonel,K K Allison

doi:10.1140/epjc/s10052-022-10281-5

Abstract

Measurements of K^{*}(892)^0 resonance production via its K^{+}pi ^{-} decay mode in inelastic p+p collisions at beam momenta 40 and 80 text{ GeV }!/!c (sqrt{s_{NN}}=8.8 and 12.3 text{ GeV }) are presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The template method was used to extract the K^{*}(892)^0 signal. Transverse momentum and rapidity spectra were obtained. The mean multiplicities of K^{*}(892)^0 mesons were found to be (35.1 pm 1.3 mathrm {(stat)} pm 3.6 mathrm {(sys))} cdot 10^{-3} at 40 text{ GeV }!/!c and (58.3 pm 1.9 mathrm {(stat)} pm 4.9 mathrm {(sys))} cdot 10^{-3} at 80 text{ GeV }!/!c. The NA61/SHINE results are compared with the Epos1.99 and Hadron Resonance Gas models as well as with world data. The transverse mass spectra of K^{*}(892)^0 mesons and other particles previously reported by NA61/SHINE were fitted within the Blast-Wave model. The transverse flow velocities are close to 0.1–0.2 of the speed of light and are significantly smaller than the ones determined in heavy nucleus-nucleus interactions at the same beam momenta.

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