Exclusive B{sub s} decays to the charmed mesons D{sub s}{sup +}(1968,2317) in the standard model

Journal Article · Wed Jul 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.014005· OSTI ID:21308511

Runhui, Li ^[1]; Caidian, Lue; Yuming, Wang ^[1]

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1. Institute of High Energy Physics and Theoretical Physics Center for Science Facilities, P.O. Box 918(4) Beijing 100049 (China)

The transition form factors of B{sub s}{sup 0}{yields}D{sub s}{sup +}(2317) and B{sub s}{sup 0}{yields}D{sub s}{sup +}(1968) at large recoil region are investigated in the light cone sum rules approach, where the heavy quark effective theory is adopted to describe the form factors at small recoil region. With the form factors obtained, we carry out a detailed analysis on both the semileptonic decays B{sub s}{sup 0}{yields}D{sub s}{sup +}(1968,2317)l{nu}{sub l} and nonleptonic decays B{sub s}{yields}D{sub s}{sup +}(1968,2317)M with M being a light meson or a charmed meson under the factorization approach. Our results show that the branching fraction of B{sub s}{sup 0}{yields}D{sub s}{sup +}(2317){mu}{nu}{sub {mu}} is around 2.3x10{sup -3}, which should be detectable with ease at the Tevatron and CERN LHC. It is also found that the branching fractions of B{sub s}{sup 0}{yields}D{sub s}{sup +}(1968)l{nu}{sub l} are almost 1 order larger than those of the corresponding B{sub s}{sup 0}{yields}D{sub s}{sup +}(2317)l{nu}{sub l} decays. The consistency of predictions for B{sub s}{yields}D{sub s}{sup +}(1968,2317)L (L denotes a light meson) in the factorization assumption and k{sub T} factorization also supports the success of color transparency mechanism in the color allowed decay modes. Most two-charmed meson decays of B{sub s} mesons possess quite large branching ratios that are accessible in the experiments. These channels are of great importance to explore the hadronic structure of charmed mesons as well as the nonperturbative dynamics of QCD.

• OSTI ID: 21308511
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 1; Other Information: DOI: 10.1103/PhysRevD.80.014005; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
B S MESONS
BRANCHING RATIO
C QUARKS
CERN LHC
CHARMED MESONS
COLOR MODEL
D S MESONS
FACTORIZATION
FERMILAB TEVATRON
FORECASTING
FORM FACTORS
LIGHT CONE
OPACITY
QUANTUM CHROMODYNAMICS
SEMILEPTONIC DECAY
STANDARD MODEL
SUM RULES
T QUARKS
WEAK HADRONIC DECAY