QED Penguin Contributions To Isospin Splittings of Heavy-Light Quark Systems

Details QED Penguin Contributions To Isospin Splittings of Heavy-Light Quark Systems QED Penguin Contributions To Isospin Splittings of Heavy-Light Quark Systems

1996-10-10

arxiv.org/abs/hep-ph/9610312v1

Phys.Lett.B416:263-267,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, latex, 2 figures

Scientific paper

10.1016/S0370-2693(97)01321-X

Recent experiments show that the isospin-violating mass splitting of the B mesons is very small, but the best fits with a QCD sum rule analysis give a splitting of at least 1.0 MeV. The isospin-violating mass splittings of the charmed mesons, on the other hand, are in agreement with experiment. In this letter we show that the inclusion of 2$^{nd}$ kind QED penguin diagrams can account for this discrepancy within the errors in the QCD sum rule method.

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