Vacuum Polarization Bubble Effects on the Triangle Relations for B Meson Charmless Decay Amplitudes |
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Authors: | LIU Jiafu CHAO Kuangta |
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Affiliation: | Department of Physics, Peking University, Beijing 100871, China |
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Abstract: | Assuming that factorization is valid and that contributions of the exchange, annihilation, and penguin-annihilation diagrams are negligible, we study the effects of the QCD vacuum polarization bubbles on the decay amplitudes of some B meson charmless decays into two light pseudoscalars. The bubbles have much less effects on B0→π+π-, π-K+, π0K0 than on B0→π0π0 thus the triangle relation √2A(B+→π+π0) = A(B0→π-K+)/Ru+√2A(B0→π0K0)/Ru is changed slightly while √2A(B+→π+π0)=√2A(B0→π0π0)+A(B0→π+π-) is altered significantly. This may indicate that in order to test or use these triangle relations other higher order QCD corrections should also be carefully taken into consideration. |
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Keywords: | QCD vacuum polarization bubble B meson charmless decay |
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