Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1851278 | Physics Letters B | 2008 | 7 Pages |
Abstract
We present results of a detailed study of the three-body B¯0âΣc(2455)0p¯Ï+ decay. A significant enhancement of signal events is observed in the p¯Ï+ invariant mass distribution near 1.5 GeV/c2 that is consistent with the presence of an intermediate baryonic resonance N¯0, where N¯0 is the N¯(1440)0P11 or N¯(1535)0S11 state, or an admixture of the two states. We measure the product B(B¯0âΣc(2455)0N¯0)ÃB(N¯0âp¯Ï+)=(0.80±0.15(stat.)±0.14(syst.)±0.21)Ã10â4, where the last error is due to the uncertainty in B(Îc+âpKâÏ+). The significance of the signal is 6.1 standard deviations. This analysis is based on a data sample of 357 fbâ1, accumulated at the Ï(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+eâ collider.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Belle Collaboration Belle Collaboration, H.O. Kim, H. Kichimi, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A.M. Bakich, V. Balagura, I. Bedny, U. Bitenc, A. Bondar, A. Bozek, M. BraÄko, T.E. Browder, P. Chang, Y. Chao, O. Zyukova,