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A Study of Production and Decay of Omega_c^0 Baryons in BABAR.

出版	United States. Department of Energy, 2005
URL	http://books.google.com.hk/books?id=3xyQAQAACAAJ&hl=&source=gbs_api

註釋Production and decay of {Omega}{sub c}{sup 0} baryons is studied with {approx} 230 fb{sup -1} of data recorded with the BABAR detector at the PEP-II e{sup +}e{sup -} asymmetric-energy storage ring at SLAC. The {Omega}{sub c}{sup 0} is reconstructed through its decays into {Omega}{sup -}{pi}{sup +}, {Omega}{sup -}{pi}{sup +}{pi}{sup -}{pi}{sup +}, {Xi}{sup -}K{sup -}{pi}{sup +}{pi}{sup +} final states. The invariant mass spectra are presented and the signal yields are extracted. Ratios of branching fractions are measured relative to the {Omega}{sub c}{sup 0} {yields} {Omega}{sup -}{pi}{sup +} mode {Beta}({Omega}{sub c}{sup 0} {yields} {Xi}{sup -} K{sup -}{pi}{sup +}{pi}{sup +})/{Beta}({Omega}{sub c}{sup 0} {yields} {Omega}{sup -}{pi}{sup +}) = 0.31 {+-} 0.15(stat.) {+-} 0.04(syst.), {Beta}({Omega}{sub c}{sup 0} {yields} {Omega}{sup -} {pi}{sup +}{pi}{sup -}{pi}{sup +})/{Beta}({Omega}{sub c}{sup 0} {yields} {Omega}{sup -}{pi}{sup +})