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Measurements of production properties of K0S mesons and Λ hyperons in proton-carbon interactions at 31 GeV/c

Abgrall, N. and Aduszkiewicz, A. and Ali, Y. and Anticic, T. and Antoniou, N. and Argyriades, J. and Baatar, B. and Blondel, A. and Blumer, J. and Bogomilov, M. and Bravar, A. and Brooks, W. and Brzychczyk, J. and Bunyatov, S. A. and Busygina, O. and Christakoglou, P. and Czopowicz, T. and Davis, N. and Debieux, S. and Dembinski, H. and Diakonos, F. and Di Luise, S. and Dominik, W. and Drozhzhova, T. and Dumarchez, J. and Dynowski, K. and Engel, R. and Ereditato, A. and Esposito, L. and Feofilov, G. A. and Fodor, Zoltán and Fülöp, Ágnes and Kiss, Tivadar and László, András and Márton, Krisztina and Pálla, Gabriella and Sipos, Roland and Tölyhi, Tamás and Vesztergombi, György (2014) Measurements of production properties of K0S mesons and Λ hyperons in proton-carbon interactions at 31 GeV/c. PHYSICAL REVIEW C, 89 (2). ISSN 2469-9985

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Abstract

Spectra of K0S mesons and Lambda hyperons were measured in p+C interactions at 31 GeV/c with the large acceptance NA61/SHINE spectrometer at the CERN SPS. The data were collected with an isotropic graphite target with a thickness of 4% of a nuclear interaction length. Interaction cross sections, charged pion spectra, and charged kaon spectra were previously measured using the same data set. Results on K0S and Lambda production in p+C interactions serve as reference for the understanding of the enhancement of strangeness production in nucleus-nucleus collisions. Moreover, they provide important input for the improvement of neutrino flux predictions for the T2K long baseline neutrino oscillation experiment in Japan. Inclusive production cross sections for K0S and Lambda are presented as a function of laboratory momentum in intervals of the laboratory polar angle covering the range from 0 up to 240 mrad. The results are compared with predictions of several hadron production models. The K0S mean multiplicity in production processes <n_K0S> and the inclusive cross section for K0S production were measured and amount to 0.127 +- 0.005 (stat) +- 0.022 (sys) and 29.0 +- 1.6 (stat) +- 5.0 (sys) mb, respectively.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 07 Feb 2024 14:55
Last Modified: 07 Feb 2024 14:55
URI: http://real.mtak.hu/id/eprint/187804

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