QCD sum rule analysis of the decays {ital B}{r_arrow}{ital K}l{sup +}l{sup {minus}} and {ital B}{r_arrow}{ital K}{sup {asterisk}}l{sup +}l{sup {minus}}

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.53.3672· OSTI ID:279834

Colangelo, P; De Fazio, F; Santorelli, P; Scrimieri, E ^[1]

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1. Istituto Nazionale di Fisica Nucleare, Sezione di Bari (Italy)

We use QCD sum rules to calculate the hadronic matrix elements governing the rare decays {ital B}{r_arrow}{ital K}l{sup +}l{sup {minus}} and {ital B}{r_arrow}{ital K}{sup {asterisk}}l{sup +}l{sup {minus}} induced by the flavor-changing neutral current {ital b}{r_arrow}{ital s} transition. We also study relations among semileptonic and rare {ital B}{r_arrow}{ital K}{sup ({asterisk})} decay form factors. The analysis of the invariant mass distribution of the lepton pair in {ital B}{r_arrow}{ital K}{sup ({asterisk})}l{sup +}l{sup {minus}} and of the angular asymmetry in {ital B}{r_arrow}{ital K}{sup {asterisk}}l{sup +}l{sup {minus}} provides us with interesting tests of the standard model and its extensions. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 279834
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ASYMMETRY
B MESONS
DISTRIBUTION
FLAVOR
FORM FACTORS
KAONS
LEPTONS
MASS
MASS DISTRIBUTION
MATRIX ELEMENTS
NEUTRAL CURRENTS
QUANTUM CHROMODYNAMICS
SEMILEPTONIC DECAY
STANDARD MODEL
SUM RULES