Measurements of pi ^pm , K^pm , p and {bar{text {p}}} spectra in proton-proton interactions at 20, 31, 40, 80 and 158\xa0text{ GeV }/c with the NA61/SHINE spectrometer at the CERN SPS

A Aduszkiewicz,V Kovalenko,M Maćkowiak-Pawłowska,F Guber,N Knezević,A Kurepin,Y Nagai,M Posiadała,Z Włodarczyk,A Snoch,R Rameika,A E Hervé,S Mrówczyński,R Renfordt,R Ulrich,O Wyszyński,Y Ali,S Kowalski,M Roth,L Turko,D Manić,M Ćirković,M Naskręt,K Grebieszkow,A Wickremasinghe,V A Kireyeu,H Ströbele,B Łysakowski,W Kucewicz,K Schmidt,M Słodkowski,I Selyuzhenkov,P Dorosz,D Larsen,T Czopowicz,D Veberič,V Matveev,A Rybicki,W Rauch,M Gaździcki,M Deveaux,T Šuša,A Ereditato,R Płaneta,M Golubeva,M Baszczyk,Ł Mik,D Röhrich,K Kadija,J Puzović,S Puławski,C Wilkinson,A Krasnoperov,G Vesztergombi,V Ozvenchuk,L Vinogradov,O Busygina,P Seyboth,M Unger,M Szuba,B Messerly,A Wojtaszek-Szwarć ,G L Melkumov,E D Zimmerman,K Kowalik,A Taranenko,B Baatar,B Maksiak,O Petukhov,A Damyanova,B T Rumberger,C François ,A V Brandin ,D Tefelski,A O Merzlaya ,S Johnson ,V Lyubushkin ,E Richter-Wąs ,S Bhosale,A Ivashkin,M Bogomilov,H.-P Dembinski ,Maciej Piotr Lewicki ,G B Mills,M M Kielbowicz ,C Pistillo,A Marcinek,A D Marino,R Tsenov,A Marchionni,Z Fodor,A Tefelska,A Sadovsky,M Strikhanov,P Podlaski,N Davis,M Kuich,A Blondel,M Rybczyński ,V Kolesnikov ,M Pavin,J Steṕaniak ,D Kolev,T Antičić ,W Dominik,A Yu Seryakov ,L Zambelli,E Kaptur,H J Mathes ,A Korzenev,Á László ,G Stefanek,S N Igolkin ,A Malakhov ,V P Klochkov ,J Brzychczyk,K Márton ,A Rustamov,A Bravar,E Rondio,M Ravonel,S V Morozov ,V Kondratiev ,J Hylen,H Cherif,Б Popov ,Evgeny Andronov ,В Терещенко ,J Dumarchez,A Haesler,V Vechernin ,V Paolone,A Toia,P Staszel,B Lundberg,Г Феофилов ,M Kozieł ,S.a Bunyatov ,T Matulewicz,R Engel,А А Гарибов ,M Walewski,R Zwaska

doi:10.1140/epjc/s10052-017-5260-4

Abstract

Measurements of inclusive spectra and mean multiplicities of pi ^pm , K^pm , p and {bar{text {p}}} produced in inelastic p + p interactions at incident projectile momenta of 20, 31, 40, 80 and 158 text{ GeV }/c (sqrt{s} = 6.3, 7.7, 8.8, 12.3 and 17.3 text{ GeV }, respectively) were performed at the CERN Super Proton Synchrotron using the large acceptance NA61/SHINE hadron spectrometer. Spectra are presented as function of rapidity and transverse momentum and are compared to predictions of current models. The measurements serve as the baseline in the NA61/SHINE study of the properties of the onset of deconfinement and search for the critical point of strongly interacting matter.

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