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InclusiveΛ0polarization in proton-nucleus collisions at 12 GeV

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields1986Vol. 34(7), pp. 1950–1959

Citations Over TimeTop 15% of 1986 papers

F. Abe, K. Hara, S. Kim, K. Kondo, S. Miyashita, I. Nakano, K. Takikawa, R. Tanaka, Yuzo Yamamoto, T. Yasuda, and K. Yasuoka, Y. Asano, Shigeki Mori, Y. Fukui, S. Kurokawa, A. Maki

Abstract

The polarization of ${\ensuremath{\Lambda}}^{0}$ hyperons in inclusive production by 12-GeV protons on nuclei has been measured for beryllium, copper, and tungsten targets. Data are obtained at five production angles, 3.5\ifmmode^\circ\else\textdegree\fi{}, 5.0\ifmmode^\circ\else\textdegree\fi{}, 6.5\ifmmode^\circ\else\textdegree\fi{}, 8.0\ifmmode^\circ\else\textdegree\fi{}, and 9.5\ifmmode^\circ\else\textdegree\fi{}, covering the kinematic range 0.26\ensuremath{\le}${x}_{F}$\ensuremath{\le}0.77 and 0.4\ensuremath{\le}${p}_{T}$\ensuremath{\le}1.5 GeV/c. The dependence of the polarization on target nuclei is investigated by statistical analyses of the data. The polarization at fixed ${p}_{T}$ increases roughly linearly with ${x}_{F}$. The present results are compared with other work at higher energies in terms of the A dependence and the (${x}_{F}$,${p}_{T}$) dependence.

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