Measurement of the Xi-p Scattering Cross Sections at Low Energy
nucl-ex
/ Authors
J. K. Ahn, S. Aoki, K. S. Chung, M. S. Chung, H. Enyo, T. Fukuda, H. Funahashi, Y. Goto, A. Higashi, M. Ieiri
and 27 more authors
T. Iijima, M. Iinuma, K. Imai, Y. Itow, J. M. Lee, S. Makino, A. Masaike, Y. Matsuda, Y. Matsuyama, S. Mihara, C. Nagoshi, I. Nomura, I. S. Park, N. Saito, M. Sekimoto, Y. M. Shin, K. S. Sim, R. Susukita, R. Takashima, F. Takeutchi, P. Tlusty, S. Weibe, S. Yakkaichi, K. Yoshida
/ Abstract
In this paper we report cross-section measurements for $Ξ^-p$ elastic and inelastic scatterings at low energy using a scintillating fiber active target. Upper limit on the total cross-section for the elastic scattering was found to be 24 mb at 90% confidence level, and the total cross section for the $Ξ^-p\toΛΛ$ reaction was found to be $4.3^{+6.3}_{-2.7}$ mb. We compare the results with currently competing theoretical estimates.