Measurement of the In-Medium K-0 Inclusive Cross Section in pi(-)-Induced Reactions at 1.15 GeV/c

Benabderrahmane, M. L.; Herrmann, N.; Wisniewski, K.; Kecskemeti, J.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Buehler, P.; Cargnelli, M.; Caplar, R.; Cordier, E.; Deppner, I.; Crochet, P.; Dupieux, P.; Dzelalija, M.; Fabbietti, L.; Fodor, Z.; Gasik, P.; Gasparic, I.; Grishkin, Y.; Hartmann, O. N.; Hildenbrand, K. D.; Hong, B.; Kang, T. I.; Kienle, P.; Kirejczyk, M.; Kim, Y. J.; Kis, M.; Koczon, P.; Korolija, M.; Kotte, R.; Lebedev, A.; Leifels, Y.; Lopez, X.; Manko, V.; Marton, J.; Mangiarotti, A.; Merschmeyer, M.; Matulewicz, T.; Petrovici, M.; Piasecki, K.; Rami, F.; Reischl, A.; Reisdorf, W.; Rogowska, M.; Ryu, M. S.; Schmidt, P.; Schuettauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczynska, K.; Smolyankin, V.; Suzuki, K.; Tyminski, Z.; Widmann, E.; Xiao, Z. G.; Yamazaki, T.; Yushmanov, I.; Zhang, X. Y.; Zhilin, A.; Zmeskal, J.; Bratkovskaya, E.; Cassing, W.

doi:10.1103/PhysRevLett.102.182501

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Measurement of the In-Medium K-0 Inclusive Cross Section in pi(-)-Induced Reactions at 1.15 GeV/c

Benabderrahmane, M. L.;
Herrmann, N.;
Wisniewski, K.;
Kecskemeti, J.;
Andronic, A.;
... Hong, B.;
외 60명

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40

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44

초록

The K-0 meson production by pi(-) mesons of 1.15 GeV/c momentum on C, Al, Cu, Sn, and Pb nuclear targets was measured with the FOPI spectrometer at the Schwer-Ionen-Synchrotron accelerator of GSI. Inclusive production cross sections and the momentum distributions of K-0 mesons are compared to scaled elementary production cross sections and to predictions of theoretical models describing the in-medium production of kaons. The data represent a new reference for those models, which are widely used for interpretation of the strangeness production in heavy-ion collisions. The presented results demonstrate the sensitivity of the kaon production to the reaction amplitudes inside nuclei and point to the existence of a repulsive KN potential of 20 +/- 5 MeV at normal nuclear matter density.

키워드

K0 cross section; pion induced reaction; SUBTHRESHOLD K+-PRODUCTION; KAON PRODUCTION; DENSE; NUCLEI

제목: Measurement of the In-Medium K-0 Inclusive Cross Section in pi(-)-Induced Reactions at 1.15 GeV/c

저자: Benabderrahmane, M. L.; Herrmann, N.; Wisniewski, K.; Kecskemeti, J.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Buehler, P.; Cargnelli, M.; Caplar, R.; Cordier, E.; Deppner, I.; Crochet, P.; Dupieux, P.; Dzelalija, M.; Fabbietti, L.; Fodor, Z.; Gasik, P.; Gasparic, I.; Grishkin, Y.; Hartmann, O. N.; Hildenbrand, K. D.; Hong, B.; Kang, T. I.; Kienle, P.; Kirejczyk, M.; Kim, Y. J.; Kis, M.; Koczon, P.; Korolija, M.; Kotte, R.; Lebedev, A.; Leifels, Y.; Lopez, X.; Manko, V.; Marton, J.; Mangiarotti, A.; Merschmeyer, M.; Matulewicz, T.; Petrovici, M.; Piasecki, K.; Rami, F.; Reischl, A.; Reisdorf, W.; Rogowska, M.; Ryu, M. S.; Schmidt, P.; Schuettauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczynska, K.; Smolyankin, V.; Suzuki, K.; Tyminski, Z.; Widmann, E.; Xiao, Z. G.; Yamazaki, T.; Yushmanov, I.; Zhang, X. Y.; Zhilin, A.; Zmeskal, J.; Bratkovskaya, E.; Cassing, W.

DOI: 10.1103/PhysRevLett.102.182501

발행일: 2009-05-08

유형: Article

저널명: Physical Review Letters

권: 102

호: 18