Antitriplet charmed baryon decays with SU(3) flavor symmetry

作者：Geng, C. Q.^*; Hsiao, Y. K.; Liu, Chia-Wei; Tsai, Tien-Hsueh

来源：PHYSICAL REVIEW D, 2018, 97(7): 073006.

DOI：10.1103/PhysRevD.97.073006

• LEPTONIC DECAYS
• WEAK DECAYS
• QUARK

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 (

• 出版日期2018-4-26
• 单位清华大学; 山西师范大学