TY - JOUR
T1 - Critical look at rescattering effects on γ from B+→Kπ
AU - Gronau, Michael
AU - Pirjol, Dan
PY - 2000/1/1
Y1 - 2000/1/1
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevD.61.013005
DO - 10.1103/PhysRevD.61.013005
M3 - Article
AN - SCOPUS:16644362984
SN - 0556-2821
VL - 61
SP - 1
EP - 6
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 1
M1 - 013005
ER -