Exclusive decays J/ψ(ψ') → Y(Y-) (Y = A,∑0, -) are studied in the quark model by combining thestructure of hyperons in the transition. The branching ratios are evaluated contrastively by adopting different hyp...Exclusive decays J/ψ(ψ') → Y(Y-) (Y = A,∑0, -) are studied in the quark model by combining thestructure of hyperons in the transition. The branching ratios are evaluated contrastively by adopting different hyperonwavefunctions, SU(6) basis, and uds basis, which account for SU(3)f breaking, and the results show that the differentdescription of quark mass breaking plays an important role in the evaluation of the decay width for processes J/ψ(ψ') →Y(Y-).展开更多
文摘Exclusive decays J/ψ(ψ') → Y(Y-) (Y = A,∑0, -) are studied in the quark model by combining thestructure of hyperons in the transition. The branching ratios are evaluated contrastively by adopting different hyperonwavefunctions, SU(6) basis, and uds basis, which account for SU(3)f breaking, and the results show that the differentdescription of quark mass breaking plays an important role in the evaluation of the decay width for processes J/ψ(ψ') →Y(Y-).
