(NA61 SHINE Collaboration) Aduszkiewicz, A.; Antičić, Tome; Kadija, Krešo; Pavin, M.; Šuša, Tatjana; Zwaska, R. (2020) 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. European physical journal C : particles and fields, 80 (3). ISSN 1434-6044
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Abstract
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.
| Item Type: | Article |
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| Uncontrolled Keywords: | cross-section ; collisions |
| Subjects: | NATURAL SCIENCES > Physics |
| Divisions: | Division of Experimental Physics |
| Depositing User: | Tatjana Šuša |
| Date Deposited: | 15 Apr 2022 10:57 |
| URI: | http://fulir.irb.hr/id/eprint/7261 |
| DOI: | 10.1140/epjc/s10052-020-7675-6 |
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