fJ (2220) and hadronic (B)over-bars0 decays

被引：0
|
作者：
Hsiao, Y. K. [1 ,2 ]
Geng, C. Q. [1 ,2 ,3 ]
机构：
[1] Natl Ctr Theoret Sci, Div Phys, Hsinchu 300, Taiwan
[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan
[3] Chongqing Univ Posts & Telecommun, Coll Math & Phys, Chongqing 400065, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2015年 / 75卷 / 03期
关键词：
LARGE MOMENTUM-TRANSFER; J/PSI RADIATIVE DECAYS; BARYONIC B-DECAYS; QUANTUM CHROMODYNAMICS; EXCLUSIVE PROCESSES; FORM-FACTORS; GLUEBALL; SEARCH; STATE; XI(2230);
D O I：
10.1140/epjc/s10052-015-3317-9
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We study the hadronic (B) over bar (0)(s) decays based on the existence of the resonant state f(J) (2220). In particular, we are able to explain the unexpected large experimental result of (B) over bar (0)(s) -> J/psi p (p) over bar) = (3.0(-1.1)(+1.2) +/- 0.52 +/- 0.03) x 10(-6) measured recently by the LHCb collaboration due to the resonant contribution in (B) over bar (0)(s) -> J/psi f(J) (2220) with f(J) (2220) -> p (p) over bar, while it is estimated to be at most of order 10(-9) in terms of the OZI rule without the resonance. In addition, we find that B((B) over bar (0)(s) -> D*(0)(f(J) ->) p (p) over bar) = (4.70 +/- 2.89) x 10(-7), B((B) over bar (0)(s) -> J/psi(f(J) ->) pi pi) = (15.6 +/- 15.2) x 10(-6), and B((B) over bar (0)(s) -> D*(0)(f(J) ->) pi pi) = (24.5 +/- 24.4) x 10(-7), while B((B) over bar (0)(s) -> J/psi(f(J) ->) K (K) over bar) < 1.6 x 10(-5) and B(<(B)over bar>(0)(s) -> D*(0)(f(J) ->) K (K) over bar) < 2.5x10(-6). Moreover, wepredict that the decay branching ratios of <(B)over bar>(0)(s) -> (J/psi, D*(0)) Lambda(Lambda) over bar are (2.68 +/- 1.23) x 10(-7) and (2.25 +/- 0.80) x 10(-6). Some of the predicted (B) over bar (0)(s) decays are accessible to the experiments at the LHCb.
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页数：5
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