Proton asymmetry in non-mesonic weak decay of light hypernuclei
/ Authors
T. Maruta, S. Ajimura, K. Aoki, A. Banu, H. Bhang, Tomokazu Fukuda, O. Hashimoto, J. Hwang, S. Kameoka, B. Kang
and 23 more authors
E. Kim, J. H. Kim, M. Kim, Y. Miura, Y. Miyake, T. Nagae, M. Nakamura, Satoshi N. Nakamura, H. Noumi, S. Okada, Y. Okayasu, H. Outa, H. Park, P. Saha, Y. Sato, M. Sekimoto, T. Takahashi, H. Tamura, K. Tanida, A. Toyoda, K. Tsukada, Tsutomu Watanabe, H. Yim
/ Abstract
Abstract We have obtained the decay asymmetry parameters in non-mesonic weak decay of polarized Λ -hypernuclei by measuring the proton asymmetry. The polarized Λ -hypernuclei, 5 Λ He, 12 Λ C, and 11 Λ B, were produced in high statistics via the ( π + , K + ) reaction at 1.05 GeV/ c in the forward angles. Preliminary analysis shows that the decay asymmetry parameters are very small for these s -shell and p -shell hypernuclei.
Journal: Nuclear Physics