Form factor [ital A][sub 0]([ital q][sup 2]), nonleptonic [ital D]([ital B])[r arrow][ital PV] transitions, and rare [ital B][r arrow][ital K][sup *][gamma] decays

Journal Article · Wed Mar 01 00:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.2237· OSTI ID:6565061

Colangelo, P ^[1]; De Fazio, F ^[2]; Santorelli, P ^[3]

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1. Istituto Nazionale di Fisica Nucleare, Sezione di Bari (Italy)
2. Istituto Nazionale di Fisica Nucleare, Sezione di Bari (Italy) Dipartimento di Fisica dell'Universita di Bari, via G. Amendola 173, 70126, Bari (Italy)
3. Dipartimento di Fisica dell'Universita Federico II'' di Napoli and Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Mostra D'Oltremare, Pad 19-20, 80125 Napoli (Italy)

We use three-point function QCD sum rules to calculate the form factor [ital A][sub 0]([ital q][sup 2]) appearing in the matrix element of the flavor-changing axial vector current between the [ital D]([ital B]) state and a vector meson state. We describe the role of this form factor in nonleptonic [ital D]([ital B])[r arrow][ital PV] decays and analyze the light SU(3)[sub [ital F]]-symmetry-breaking effects. We also discuss a proposal to relate the branching ratio of [ital B][r arrow][ital K][sup *][gamma] to the spectrum of the semileptonic [ital B][r arrow][rho][ital l][nu] decay.

• OSTI ID: 6565061
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 51:5; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
RADIATIVE DECAY
WEAK HADRONIC DECAY
D MESONS
BRANCHING RATIO
FORM FACTORS
AXIAL-VECTOR CURRENTS
MATRIX ELEMENTS
QUANTUM CHROMODYNAMICS
SEMILEPTONIC DECAY
SPECTRA
SU-3 GROUPS
SUM RULES
SYMMETRY BREAKING
VECTOR MESONS
ALGEBRAIC CURRENTS
BEAUTY PARTICLES
BOSONS
CHARM PARTICLES
CHARMED MESONS
CURRENTS
DECAY
ELEMENTARY PARTICLES
EQUATIONS
FIELD THEORIES
HADRONS
LIE GROUPS
MESONS
PARTICLE DECAY
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
SU GROUPS
SYMMETRY GROUPS
WEAK PARTICLE DECAY
662130* - General Theory of Particles & Fields- S-Matrix Theory
Relativistic Scattering Theory- (1992-)
662350 - Decays of Mesons- (1992-)
662390 - Electromagnetic Processes & Properties- (1992-)