Enhanced electroweak penguin amplitude in B→VV decays

M. Beneke; J. Rohrer; D. Yang

doi:10.1103/PhysRevLett.96.141801

Enhanced electroweak penguin amplitude in B→VV decays

M. Beneke
, J. Rohrer
, D. Yang

RWTH Aachen University
Nagoya University

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

We discuss a novel electromagnetic penguin contribution to the transverse helicity amplitudes in B decays to two vector mesons, which is enhanced by two powers of mB/Λ relative to the standard penguin amplitudes. This leads to unique polarization signatures in penguin-dominated decay modes such as B→ρK* similar to polarization effects in the radiative decay B→K*γ and offers new opportunities to probe the magnitude and chirality of flavor-changing neutral current couplings to photons.

Original language	English
Article number	141801
Journal	Physical Review Letters
Volume	96
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.96.141801
State	Published - 2006
Externally published	Yes

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10.1103/PhysRevLett.96.141801

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title = "Enhanced electroweak penguin amplitude in B→VV decays",

abstract = "We discuss a novel electromagnetic penguin contribution to the transverse helicity amplitudes in B decays to two vector mesons, which is enhanced by two powers of mB/Λ relative to the standard penguin amplitudes. This leads to unique polarization signatures in penguin-dominated decay modes such as B→ρK* similar to polarization effects in the radiative decay B→K*γ and offers new opportunities to probe the magnitude and chirality of flavor-changing neutral current couplings to photons.",

author = "M. Beneke and J. Rohrer and D. Yang",

year = "2006",

doi = "10.1103/PhysRevLett.96.141801",

language = "English",

volume = "96",

journal = "Physical Review Letters",

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T1 - Enhanced electroweak penguin amplitude in B→VV decays

AU - Beneke, M.

AU - Rohrer, J.

AU - Yang, D.

PY - 2006

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N2 - We discuss a novel electromagnetic penguin contribution to the transverse helicity amplitudes in B decays to two vector mesons, which is enhanced by two powers of mB/Λ relative to the standard penguin amplitudes. This leads to unique polarization signatures in penguin-dominated decay modes such as B→ρK* similar to polarization effects in the radiative decay B→K*γ and offers new opportunities to probe the magnitude and chirality of flavor-changing neutral current couplings to photons.

AB - We discuss a novel electromagnetic penguin contribution to the transverse helicity amplitudes in B decays to two vector mesons, which is enhanced by two powers of mB/Λ relative to the standard penguin amplitudes. This leads to unique polarization signatures in penguin-dominated decay modes such as B→ρK* similar to polarization effects in the radiative decay B→K*γ and offers new opportunities to probe the magnitude and chirality of flavor-changing neutral current couplings to photons.

UR - https://www.scopus.com/pages/publications/33645769434

U2 - 10.1103/PhysRevLett.96.141801

DO - 10.1103/PhysRevLett.96.141801

M3 - Article

AN - SCOPUS:33645769434

SN - 0031-9007

VL - 96

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 141801

ER -

Enhanced electroweak penguin amplitude in B→VV decays

Abstract

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