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°).
|Number of pages||10|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - Aug 1 2005|
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)