Sum rules for 𝐵→𝜋𝜂(′), 𝐾𝜂(′), 𝜂(′)𝜂(′) decays

Rafel Escribano; Joaquim Matias; Javier Virto

doi:10.1016/j.physletb.2007.12.023

Sum rules for 𝐵→𝜋𝜂(′), 𝐾𝜂(′), 𝜂(′)𝜂(′) decays

Rafel Escribano, Joaquim Matias, Javier Virto

Department of Physics

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

1 Citation (Scopus)

Abstract

We provide a set of sum rules, using flavor symmetries, relating CP-averaged ratios and CP asymmetries of different neutral and charged B mesons decaying into an eta(()'()) particle together with a pion, a kaon or a second eta(()'()). These sum rules allow us to give a prediction for the B-0 -> K-0 eta branching ratio. We also predict a clear sign anti-correlation between the two B-0 -> pi(0)(eta,eta') CP asymmetries, and find a combined constraint on the branching ratios and CP asymmetries of the three B-0 -> eta(()'())eta(()'()) decay modes. (C) 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	870-877
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	659
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2007.12.023
Publication status	Published - 7 Feb 2008

Keywords

Final-state interactions
Cp violation
Gamma
Asymmetries
Angle
Eta'

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10.1016/j.physletb.2007.12.023

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title = "Sum rules for 𝐵→𝜋𝜂(′), 𝐾𝜂(′), 𝜂(′)𝜂(′) decays",

abstract = "We provide a set of sum rules, using flavor symmetries, relating CP-averaged ratios and CP asymmetries of different neutral and charged B mesons decaying into an eta(()'()) particle together with a pion, a kaon or a second eta(()'()). These sum rules allow us to give a prediction for the B-0 -> K-0 eta branching ratio. We also predict a clear sign anti-correlation between the two B-0 -> pi(0)(eta,eta') CP asymmetries, and find a combined constraint on the branching ratios and CP asymmetries of the three B-0 -> eta(()'())eta(()'()) decay modes. (C) 2007 Elsevier B.V. All rights reserved.",

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T1 - Sum rules for 𝐵→𝜋𝜂(′), 𝐾𝜂(′), 𝜂(′)𝜂(′) decays

AU - Escribano, Rafel

AU - Matias, Joaquim

AU - Virto, Javier

PY - 2008/2/7

Y1 - 2008/2/7

N2 - We provide a set of sum rules, using flavor symmetries, relating CP-averaged ratios and CP asymmetries of different neutral and charged B mesons decaying into an eta(()'()) particle together with a pion, a kaon or a second eta(()'()). These sum rules allow us to give a prediction for the B-0 -> K-0 eta branching ratio. We also predict a clear sign anti-correlation between the two B-0 -> pi(0)(eta,eta') CP asymmetries, and find a combined constraint on the branching ratios and CP asymmetries of the three B-0 -> eta(()'())eta(()'()) decay modes. (C) 2007 Elsevier B.V. All rights reserved.

AB - We provide a set of sum rules, using flavor symmetries, relating CP-averaged ratios and CP asymmetries of different neutral and charged B mesons decaying into an eta(()'()) particle together with a pion, a kaon or a second eta(()'()). These sum rules allow us to give a prediction for the B-0 -> K-0 eta branching ratio. We also predict a clear sign anti-correlation between the two B-0 -> pi(0)(eta,eta') CP asymmetries, and find a combined constraint on the branching ratios and CP asymmetries of the three B-0 -> eta(()'())eta(()'()) decay modes. (C) 2007 Elsevier B.V. All rights reserved.

KW - Final-state interactions

KW - Cp violation

KW - Gamma

KW - Asymmetries

KW - Angle

KW - Eta'

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

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ER -

Sum rules for 𝐵→𝜋𝜂(′), 𝐾𝜂(′), 𝜂(′)𝜂(′) decays

Abstract

Keywords

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