Chromomagnetic dipole-operator corrections in B̄→X sγ at O(β0αs2)
We calculate the fermionic corrections to the photon-energy spectrum of B̄→Xsγ which arise from the self-interference of the chromomagnetic dipole operator Q8 at next-to-next-to-leading order by applying naive non-Abelianization. The resulting O(β0αs2) correction to the B̄→Xsγ branching ratio amount...
| Những tác giả chính: | , |
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| Định dạng: | Journal article |
| Ngôn ngữ: | English |
| Được phát hành: |
2010
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