B{sub c} meson weak decays and CP violation

Journal Article · Wed Oct 01 04:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.4133· OSTI ID:542760

Liu, J ^[1]; Chao, K ^[2]

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1. Department of Physics, Peking University, Beijing 100871, People`s Republic of (China)
2. China Center of Advanced Science and Technology (World Laboratory), Beijing 100080, People`s Republic of (China)

The form factors for B{sub c} transitions are calculated with a relativistic constituent quark model based on the Bethe-Salpeter formalism. The rates for some semileptonic and nonleptonic B{sub c} weak decays and CP-violating asymmetries for two-body hardonic B{sub c} decays are estimated as well. The calculated widths are compared with those predicted in other quark models of mesons. For the most promising signatures for the discovery of B{sub c}: B{sub c}{r_arrow}{psi}l{nu}{r_arrow}(l{sup {prime}+}l{sup {prime}{minus} })l{nu} and B{sub c}{r_arrow}{psi}{pi}{r_arrow}(l{sup {prime}+}l{sup {prime}{minus}}){pi} (with l{sup {prime}}=e or {mu}), the combined branching ratios are, respectively, estimated to be 1.06{times}10{sup {minus}3 } and 4.8a{sub 1}{sup 2}{times}10{sup {minus}5 } for {tau}{sub B{sub c}}=0.5 ps and as large as 2.56{times}10{sup {minus}3} and 1.15a{sub 1}{sup 2}{times}10{sup {minus}4} for {tau}{sub B{sub c}}=1.2 ps. There are large CP-violating effects in some B{sub c} decay modes, and the rates for some of these (e.g., B{sub c}{r_arrow}{psi}D{sup *},{eta}{sub c}D, and {eta}{sub c}D{sup *}, etc.) are large too. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 542760
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ASYMMETRY
B MESONS
BETHE-SALPETER EQUATION
BRANCHING RATIO
CHARMED MESONS
CP INVARIANCE
FORM FACTORS
QUARK MODEL
SEMILEPTONIC DECAY
VIOLATIONS
WEAK HADRONIC DECAY
WIDTH