학술논문
Measurement of $\phi$ meson production in p+p interactions at 40, 80 and 158 GeV/c with the NA61/SHINE spectrometer at the CERN SPS
Document Type
Working Paper
Author
Collaboration, NA61/SHINE; Aduszkiewicz, A.; Andronov, E. V.; Antićić, T.; Babkin, V.; Baszczyk, M.; Bhosale, S.; Blondel, A.; Bogomilov, M.; Brandin, A.; Bravar, A.; Bryliński, W.; Brzychczyk, J.; Buryakov, M.; Busygina, O.; Bzdak, A.; Cherif, H.; Ćirković, M.; Csanad, M.; Cybowska, J.; Czopowicz, T.; Damyanova, A.; Davis, N.; Deliyergiyev, M.; Deveaux, M.; Dmitriev, A.; Dominik, W.; Dorosz, P.; Dumarchez, J.; Engel, R.; Feofilov, G. A.; Fields, L.; Fodor, Z.; Garibov, A.; Gaździcki, M.; Golosov, O.; Golovatyuk, V.; Golubeva, M.; Grebieszkow, K.; Guber, F.; Haesler, A.; Igolkin, S. N.; Ilieva, S.; Ivashkin, A.; Johnson, S. R.; Kadija, K.; Kaptur, E.; Kargin, N.; Kashirin, E.; Kiełbowicz, M.; Kireyeu, V. A.; Klochkov, V.; Kolesnikov, V. I.; Kolev, D.; Korzenev, A.; Kovalenko, V. N.; Kowalik, K.; Kowalski, S.; Koziel, M.; Krasnoperov, A.; Kucewicz, W.; Kuich, M.; Kurepin, A.; Larsen, D.; László, A.; Lazareva, T. V.; Lewicki, M.; Łojek, K.; Łysakowski, B.; Lyubushkin, V. V.; Maćkowiak-Pawłowska, M.; Majka, Z.; Maksiak, B.; Malakhov, A. I.; Manić, D.; Marchionni, A.; Marcinek, A.; Marino, A. D.; Marton, K.; Mathes, H. -J.; Matulewicz, T.; Matveev, V.; Melkumov, G. L.; Merzlaya, A. O.; Messerly, B.; Mik, Ł.; Morozov, S.; Mrówczyński, S.; Nagai, Y.; Naskręt, M.; Ozvenchuk, V.; Paolone, V.; Pavin, M.; Petukhov, O.; Płaneta, R.; Podlaski, P.; Popov, B. A.; Porfy, B.; Posiadała-Zezula, M.; Prokhorova, D. S.; Pszczel, D.; Puławski, S.; Puzović, J.; Ravonel, M.; Renfordt, R.; Richter-Wąs, E.; Röhrich, D.; Rondio, E.; Roth, M.; Rumberger, B. T.; Rumyantsev, M.; Rustamov, A.; Rybczynski, M.; Rybicki, A.; Sadovsky, A.; Schmidt, K.; Selyuzhenkov, I.; Seryakov, A. Yu.; Seyboth, P.; Słodkowski, M.; Staszel, P.; Stefanek, G.; Stepaniak, J.; Strikhanov, M.; Ströbele, H.; Šuša, T.; Taranenko, A.; Tefelska, A.; Tefelski, D.; Tereshchenko, V.; Toia, A.; Tsenov, R.; Turko, L.; Ulrich, R.; Unger, M.; Valiev, F. F.; Veberič, D.; Vechernin, V. V.; Wickremasinghe, A.; Włodarczyk, Z.; Wojtaszek-Szwarc, A.; Wyszyński, O.; Zambelli, L.; Zimmerman, E. D.; Zwaska, R.
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Abstract
Results on $\phi$ 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 $\phi \to K^+K^-$ decay channel. They include the first ever measured double differential spectra of $\phi$ mesons as a function of rapidity $y$ and transverse momentum $p_T$ for proton beam momenta of 80 GeV/c and 158 GeV/c, as well as single differential spectra of $y$ or $p_T$ for beam momentum of 40 GeV/c. The corresponding total $\phi$ yields per inelastic p+p event are obtained. These results are compared with existing data on $\phi$ meson production in p+p collisions. The comparison shows consistency but superior accuracy of the present measurements. The emission of $\phi$ 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 observables.