Analytic resolution of puzzle in B → K π decays

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

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16 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

Bibliographical note

Funding Information:
The work of C.S.K. was supported in part by CHEP-SRC and in part by the KRF Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030. The work of S.O. was supported by the Second Stage of Brain Korea 21 Project. The work of Y.W.Y. was supported by the KRF Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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