Measurement of phi meson production in p + p interactions at 40, 80 and 158 , hbox {;;;GeV};;;/c with the NA61/SHINE spectrometer at the CERN SPS (CROSBI ID 308575)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Aduszkiewicz, A. ; ... ; Antićić, Tome ; ... ; Kadija, Krešo ; ... ; Pavin, M. ; ... ; Šuša, Tatjana ; ... ; Zwaska, R.
NA61/SHINE Collaboration
engleski
Measurement of phi meson production in p + p interactions at 40, 80 and 158 , hbox {;;;GeV};;;/c with the NA61/SHINE spectrometer at the CERN SPS
Results on ϕ meson production in inelastic p+p collisions at CERN SPS energies are presented. They are derived from data collected by the NA61/SHINE fixed target experiment, by means of invariant mass spectra fits in the ϕ→K+K− decay channel. They include the first ever measured double differential spectra of ϕ mesons as a function of rapidity y and transverse momentum pT for proton beam momenta of 80GeV/c and 158GeV/c, as well as single differential spectra of y or pT for beam momentum of 40GeV/c. The corresponding total ϕ yields per inelastic p+p event are obtained. These results are compared with existing data on ϕ meson production in p+p collisions. The comparison shows consistency but superior accuracy of the present measurements. The emission of ϕ mesons in p+p reactions is confronted with that occurring in Pb+Pb collisions, and the experimental results are compared with model predictions. It appears that none of the considered models can properly describe all the experimental observations.
cross-section ; collisions
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Podaci o izdanju
80 (3)
2020.
199
18
objavljeno
1434-6044
1434-6052
10.1140/epjc/s10052-020-7675-6