Towards a precision determination of α in B→ππ decays

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31 Scopus citations


An assumption of isospin symmetry permits the determination of sin (2α) from the experimental study of B→ππ decays. Isospin, however, is merely an approximate symmetry; its breaking predicates a theoretical systematical error σαIB in the extraction of α. We focus on the impact of π0-η,η′ mixing, as well as the manner in which it is amenable to empirical constraint, and determine that σαIB can potentially be controlled to O(1°).

Original languageEnglish
Article number034015
Pages (from-to)1-10
Number of pages10
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number3
StatePublished - Aug 1 2005

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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