Analytic resolution of puzzle in B → K π decays

C. S. Kim, Sechul Oh, Yeo Woong Yoon

Research output: Contribution to journalArticle

14 Citations (Scopus)


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 | PNP / P | = 0.39 ± 0.13, φ{symbol}NP = 91 ° ± 15 ° and δNP = 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
Issue number4
Publication statusPublished - 2008 Jul 24

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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