Anti-triplet charmed baryon decays with SU(3) Flavor Symmetry

Physical Review D(2018)

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摘要
We study the decays of the antitriplet charmed baryon state (Xi(0)(c),Xi(0)(c),Lambda(+)(c)) based on the SU(3)thorn flavor symmetry. In particular, after predicting B(Xi(0)(c) -> Xi(-) pi(+)) = (15.7 +/- 0.7) x 10(-3) and B(Xi(+)(c)-> Xi(-) pi(+)pi(+)) = (14.7 +/- 8.4) x 10(-3), we extract that B(Xi(0)(c) -> Lambda K- pi(+), Lambda K+ K-,Xi(-) e(+) v(e)) = (16.8 +/- 2.3, 0.45 +/- 0.11; 48.7 +/- 17.4) x 10(-3) and B(Xi(+)(c)-> pK(s)(0) K-s(0), Sigma(+) K- pi(+), Xi(0) pi(+)pi(0), Xi(0) e(+) v(e)) = (1.3 +/- 0.8; 13.8 +/- 8.0; 33.8 +/- 21.9,33.8(-22.6)(+21.9)) x10(-3). We also find that B(Xi(0)(c) -> Xi(0)eta, Xi(0) eta ') = (1.7(-1.7)(1.0), 8.6(-6.3)(11.0)) x 10(-3),B (Xi(0)(c) -> Lambda(0) eta, Lambda(0) eta ') = (1.6(-0.8)(1.2), 9.4(-6.8)(11.6)) x 10(-4) and B(Xi(+)(c) -> Sigma(+) eta, Sigma(+) eta ') = (28.4(-6.9)(+8.2), 13.2(-11.9)(+24.0)) x 10(-4). These. Xi(c) decays with the branching ratios of O(10(-4)-10(-3)) thorn are clearly promising to be observed by the BESIII and LHCb experiments.
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