Analytic resolution of puzzle in B → K π decays

Choong Sun Kim, Sechul Oh, Yeo Woong Yoon

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We present a systematic method to extract each Standard Model (SM)-like hadronic parameter as well as new physics parameters in analytic way for B → K π decays. Using the analytic method to the currently available experimental data, we find two possible solutions physically equivalent: one showing the large SM-like color-suppressed tree contribution and the other showing the large SM-like electroweak penguin contribution. The magnitude of new physics (NP) amplitude and its weak phase are quite large. For instance, we find | P NP / P | = 0.39 ± 0.13, φ{symbol} NP = 91 ° ± 15 ° and δ NP = 8 ° ± 27 °, which are the ratio of the NP to the SM penguin contribution, the weak and the relative strong phase of the NP amplitude, respectively.

Original languageEnglish
Pages (from-to)231-236
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume665
Issue number4
DOIs
Publication statusPublished - 2008 Jul 24

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physics
decay
electroweak model
color

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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Analytic resolution of puzzle in B → K π decays. / Kim, Choong Sun; Oh, Sechul; Yoon, Yeo Woong.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 665, No. 4, 24.07.2008, p. 231-236.

Research output: Contribution to journalArticle

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T1 - Analytic resolution of puzzle in B → K π decays

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AU - Oh, Sechul

AU - Yoon, Yeo Woong

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AB - We present a systematic method to extract each Standard Model (SM)-like hadronic parameter as well as new physics parameters in analytic way for B → K π decays. Using the analytic method to the currently available experimental data, we find two possible solutions physically equivalent: one showing the large SM-like color-suppressed tree contribution and the other showing the large SM-like electroweak penguin contribution. The magnitude of new physics (NP) amplitude and its weak phase are quite large. For instance, we find | P NP / P | = 0.39 ± 0.13, φ{symbol} NP = 91 ° ± 15 ° and δ NP = 8 ° ± 27 °, which are the ratio of the NP to the SM penguin contribution, the weak and the relative strong phase of the NP amplitude, respectively.

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