Preliminary study of the missing mass spectra via the ${}^{12}C(p,K_s^0)$ and ${}^{12}C(p,\Lambda )$ reactions at 10 GeV/c

Abstract

The missing mass spectra for the ${}^{12}C(p,K_s^0)$ and ${}^{12}C(p,\Lambda )$ reactions have been studied by using of the propane bubble chamber(PBC) data from 700000 stereo photographs or $10^6$ inelastic interactions. The momentum spectrum of ${\pi }^{-}$ in range of 100-200 MeV/c have observed the significant enhancement from the p+C$\to {\pi }^{-}\Lambda$X(p+C$\to {\pi }^{-}{K}_s^0$X) reaction. The missing mass spectra have been observed signals for the $p(p,{\pi }^{-}{K}_s^0)$, ${}^{3}H(p,p{K}_s^0)$, p(p,$\Lambda ){\pi }^{-}\gamma$ and p(p,${\pi }^{-})\Lambda$ reactions. This experimental study will need to continue by using of a different identification methods for a reaction channels.

arXiv comment3 pages, 7 figures, Proc. EXA-2011,September 5th - 9th, 2011,Vienna, Austria