Rescattering and electroweak penguin effects in determinations of the weak phase γ

Dan Pirjol

doi:10.1016/S0168-9002(00)00010-3

Rescattering and electroweak penguin effects in determinations of the weak phase γ

Dan Pirjol

School of Business

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

2 Scopus citations

Abstract

Determinations of the CKM phase y from weak nonleptonic B decays are affected by electroweak (EW) penguins and rescattering effects. In this talk I explain how the EW penguin effects can be controlled with the help of SU(3) symmetry, by relating them to tree-level amplitudes. The impact of the final-state interactions on the determination of y from B⁺ → Kπ decays is studied numerically, showing that they can be important. A few alternative methods are discussed which use additional decays to eliminate their effects.

Original language	English
Pages (from-to)	18-27
Number of pages	10
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	446
Issue number	1-2
DOIs	https://doi.org/10.1016/S0168-9002(00)00010-3
State	Published - 2000

Keywords

B quarks
CKM parameter
CP violation

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10.1016/S0168-9002(00)00010-3

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title = "Rescattering and electroweak penguin effects in determinations of the weak phase γ",

abstract = "Determinations of the CKM phase y from weak nonleptonic B decays are affected by electroweak (EW) penguins and rescattering effects. In this talk I explain how the EW penguin effects can be controlled with the help of SU(3) symmetry, by relating them to tree-level amplitudes. The impact of the final-state interactions on the determination of y from B+ → Kπ decays is studied numerically, showing that they can be important. A few alternative methods are discussed which use additional decays to eliminate their effects.",

keywords = "B quarks, CKM parameter, CP violation",

author = "Dan Pirjol",

year = "2000",

doi = "10.1016/S0168-9002(00)00010-3",

language = "English",

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pages = "18--27",

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TY - JOUR

T1 - Rescattering and electroweak penguin effects in determinations of the weak phase γ

AU - Pirjol, Dan

PY - 2000

Y1 - 2000

N2 - Determinations of the CKM phase y from weak nonleptonic B decays are affected by electroweak (EW) penguins and rescattering effects. In this talk I explain how the EW penguin effects can be controlled with the help of SU(3) symmetry, by relating them to tree-level amplitudes. The impact of the final-state interactions on the determination of y from B+ → Kπ decays is studied numerically, showing that they can be important. A few alternative methods are discussed which use additional decays to eliminate their effects.

AB - Determinations of the CKM phase y from weak nonleptonic B decays are affected by electroweak (EW) penguins and rescattering effects. In this talk I explain how the EW penguin effects can be controlled with the help of SU(3) symmetry, by relating them to tree-level amplitudes. The impact of the final-state interactions on the determination of y from B+ → Kπ decays is studied numerically, showing that they can be important. A few alternative methods are discussed which use additional decays to eliminate their effects.

KW - B quarks

KW - CKM parameter

KW - CP violation

UR - https://www.scopus.com/pages/publications/33645672928

UR - https://www.scopus.com/pages/publications/33645672928#tab=citedBy

U2 - 10.1016/S0168-9002(00)00010-3

DO - 10.1016/S0168-9002(00)00010-3

M3 - Article

AN - SCOPUS:33645672928

SN - 0168-9002

VL - 446

SP - 18

EP - 27

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-2

ER -

Rescattering and electroweak penguin effects in determinations of the weak phase γ

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Keywords

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