Analysis of the rare semileptonic decays of B{sub s} to f{sub 0}(980) and K{sub 0}{sup *}(1430) scalar mesons in QCD sum rules

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

DOI:https://doi.org/10.1103/PHYSREVD.80.016009· OSTI ID:21308573

Ghahramany, N; Khosravi, R ^[1]

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1. Physics Department, Shiraz University, Shiraz 71454 (Iran, Islamic Republic of)

We investigate the rare semileptonic decays B{sub s}{yields}[f{sub 0}(980),K{sub 0}*(1430)]l{sup +}l{sup -}, (l=e, {mu}, {tau}), and B{sub s}{yields}[f{sub 0}(980),K{sub 0}*(1430)]{nu}{nu} in the framework of the three-point QCD sum rules. These decays are important to study because the f{sub 0}(980) and K{sub 0}*(1430) are the scalar mesons with total spin 0 and even parity and the quark content of them are still controversial in high energy physics. These rare decays occur at loop level by electroweak penguin and weak box diagrams in the standard model via the flavor changing neutral current transitions of b{yields}d, s, and not allowed by tree level. Considering the effective contributions of the nonperturbative parts of the correlation function, we calculate the relevant form factors of these transitions. The branching fractions and longitudinal lepton polarization asymmetry are also investigated.

• OSTI ID: 21308573
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 1; Other Information: DOI: 10.1103/PhysRevD.80.016009; (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 S MESONS
BRANCHING RATIO
COMPUTERIZED SIMULATION
CORRELATION FUNCTIONS
F0-980 MESONS
FLAVOR MODEL
FORM FACTORS
HIGH ENERGY PHYSICS
K*0-1430 MESONS
LEPTONS
MUONS
NEUTRAL CURRENTS
NEUTRINOS
PARITY
QUARKS
SEMILEPTONIC DECAY
STANDARD MODEL
SUM RULES
TAU PARTICLES
WEINBERG-SALAM GAUGE MODEL