Timelike-helicity y B → ππ form factor from light-cone sum rules with dipion distribution amplitudes
We complete the set of QCD light-cone sum rules for B→ππ transition form factors, deriving a new sum rule for the timelike-helicity form factor F[subscript t] in terms of dipion distribution amplitudes. This sum rule, in the leading twist-two approximation, is directly related to the pion vector for...
| Main Authors: | , , |
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| Other Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society,
2018-02-12T21:34:54Z.
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| Subjects: | |
| Online Access: | Get fulltext |