Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-07-25
Phys.Rev.Lett. 95 (2005) 221804
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 3 figures. v2: Numbers updated with BaBar data on B to J/Psi pi. v3: References added, version published in PRL
Scientific paper
10.1103/PhysRevLett.95.221804
Performing a fit to the available experimental data, we quantify the effect of long-distance contributions from penguin contractions in B^0 to J/psi K^0 decays. We estimate the deviation of the measured S_CP term of the time-dependent CP asymmetry from sin(2 beta) induced by these contributions and by the penguin operators. We find Delta S = 0.000 +- 0.012 ([-0.025,0.024] @ 95% probability).
Ciuchini Marco
Pierini Maurizio
Silvestrini Luca
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