Measurements of $\Xi^-$ and $\overline{\Xi}^+$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment

The production of $\Xi(1321)^{-}$ and $\overline{\Xi}(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/$c$. Double differential distributions in rapidity and transverse momentum are obtained from a sample of 33M inelastic events...

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Detalles Bibliográficos
Autores principales: 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., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V.A., Klochkov, V., Kolesnikov, V.I., Kolev, D., Korzenev, A., Kovalenko, V.N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T.V., Lewicki, M., Łojek, K., Lyubushkin, V.V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A.I., 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., 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., 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., Uzhva, D., Valiev, F.F., Veberič, D., Vechernin, V.V., Wickremasinghe, A., Włodarczyk, Z., Wojcik, K., Wyszyński, O., Zimmerman, E.D., Zwaska, R.
Lenguaje:eng
Publicado: 2020
Materias:
Particle Physics - Experiment
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-020-8381-0
https://dx.doi.org/10.1140/epjc/s10052-022-10118-1
http://cds.cern.ch/record/2719349
Descripción
Sumario:The production of $\Xi(1321)^{-}$ and $\overline{\Xi}(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/$c$. Double differential distributions in rapidity and transverse momentum are obtained from a sample of 33M inelastic events. They allow to extrapolate the spectra to full phase space and to determine the mean multiplicity of both $\Xi^-$ and $\overline{\Xi}^+$. The rapidity and transverse momentum spectra are compared to transport model predictions. The $\Xi^-$ mean multiplicity in inelastic p+p interactions at 158 GeV/$c$ is used to quantify the strangeness enhancement in A+A collisions at the same centre-of-mass energy per nucleon pair.

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