Effects of enhanced Z penguin diagrams on lepton polarizations in B → Xsℓ+ℓ-

S. Rai Choudhury; Naveen Gaur; A. S. Cornell

doi:10.1103/PhysRevD.70.057501

Effects of enhanced Z penguin diagrams on lepton polarizations in B → X_sℓ⁺ℓ^-

S. Rai Choudhury
, Naveen Gaur
, A. S. Cornell

University of Delhi
Korea Institute for Advanced Study

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

6 Citations (Scopus)

Abstract

The sensitivity of the B → πK mode to electroweak penguin diagrams and the recent experimental data for the B → ππ, πK modes has given rise to what is known as the "B → πK puzzle." Recently it has been observed that this puzzle can be resolved by considering the new physics which can enter via Z⁰ penguin diagrams. In this note we analyze the effect of these enhanced Z⁰ penguin diagrams on the lepton polarization asymmetries of b → sℓ⁺ ℓ^-.

Original language	English
Article number	057501
Pages (from-to)	057501-1-057501-4
Journal	Physical Review D
Volume	70
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.70.057501
Publication status	Published - Sept 2004
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.70.057501

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abstract = "The sensitivity of the B → πK mode to electroweak penguin diagrams and the recent experimental data for the B → ππ, πK modes has given rise to what is known as the {"}B → πK puzzle.{"} Recently it has been observed that this puzzle can be resolved by considering the new physics which can enter via Z0 penguin diagrams. In this note we analyze the effect of these enhanced Z0 penguin diagrams on the lepton polarization asymmetries of b → sℓ+ ℓ-.",

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Effects of enhanced Z penguin diagrams on lepton polarizations in B → X_sℓ⁺ℓ^-

Abstract

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