Contribution of low-lying vector resonances to polarization observables in B{sub d}{sup 0}{yields}K{sup *0}e{sup +}e{sup -} decay

Journal Article · Sun Aug 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.034013· OSTI ID:21432853

Korchin, Alexander Yu; Kovalchuk, Vladimir A ^[1]

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1. NSC Kharkov Institute of Physics and Technology, 61108 Kharkov (Ukraine)

The branching ratio and other observables for the rare flavor-changing neutral current decay B{sub d}{sup 0}{yields}K{sup *0}({yields}K{sup -}{pi}{sup +})e{sup +}e{sup -} are studied below the cc threshold. The total amplitude for this decay includes the term coming from the standard model effective Hamiltonian and the term generated by the processes B{sub d}{sup 0}{yields}K{sup *0}({yields}K{sup -}{pi}{sup +})V with intermediate low-lying vector resonances V={rho}(770), {omega}(782), {phi}(1020) decaying into the e{sup +}e{sup -} pair. The resonance contribution to the branching ratio, polarization fractions of the K{sup *} meson, and coefficients in the angular distribution is calculated. The influence of the resonances on the integrated observables in the region of electron-positron invariant mass up to 1 GeV is studied in view of the planned measurements of the photon polarization at the LHCb.

• OSTI ID: 21432853
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 3; Other Information: DOI: 10.1103/PhysRevD.82.034013; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
B NEUTRAL MESONS
BRANCHING RATIO
ELECTRON-POSITRON INTERACTIONS
FLAVOR MODEL
HAMILTONIANS
KAONS MINUS
KAONS NEUTRAL
MASS
MEV RANGE 100-1000
NEUTRAL CURRENTS
OMEGA-782 MESONS
PARTICLE DECAY
PHI-1020 MESONS
PHOTONS
PIONS PLUS
POLARIZATION
RESONANCE
RHO-770 MESONS
STANDARD MODEL
ALGEBRAIC CURRENTS
B MESONS
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
COMPOSITE MODELS
CURRENTS
DECAY
DIMENSIONLESS NUMBERS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GRAND UNIFIED THEORY
HADRONS
INTERACTIONS
KAONS
LEPTON-LEPTON INTERACTIONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MESONS
MEV RANGE
PARTICLE INTERACTIONS
PARTICLE MODELS
PHI MESONS
PIONS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MODEL
STRANGE MESONS
STRANGE PARTICLES
UNIFIED GAUGE MODELS
VECTOR MESONS