Critical look at rescattering effects on γ from B+→Kπ

Michael Gronau, Dan Pirjol

Research output: Contribution to journalArticlepeer-review


Three ways of dealing with rescattering effects in B±→K0π± are compared, in order to determine the weak phase γ from these processes and B±→K±π0. We find that neglecting these contributions altogether may involve sizeable errors in γ, depending on the rescattering amplitude and on the value of a certain measurable strong phase. We show that an attempt to eliminate these effects by using the charge-averaged rate of B±→K±K0 suffers from a large theoretical error due to SU(3) breaking, which may be resolved when using also lhe processes B±→π±η8.

Original languageEnglish
Article number013005
Pages (from-to)1-6
Number of pages6
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number1
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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