Resolution to the B -> pi K puzzle
| dc.creator | Li, Hsiang-nan | |
| dc.creator | Mishima, Satoshi | |
| dc.creator | Sanda, A. I. | |
| dc.date | 2005-08-03 | |
| dc.date | 2005-11-17 | |
| dc.date.accessioned | 2026-07-07T10:29:36Z | |
| dc.date.available | 2026-07-07T10:29:36Z | |
| dc.description | We calculate the important next-to-leading-order contributions to the B -> pi K, pi pi decays from the vertex corrections, the quark loops, and the magnetic penguins in the perturbative QCD approach. It is found that the latter two reduce the leading-order penguin amplitudes by about 10%, and modify only the B -> pi K branching ratios. The main effect of the vertex corrections is to increase the small color-suppressed tree amplitude by a factor of 3, which then resolves the large difference between the direct CP asymmetries of the B^0 -> pi^\mp K^\pm and B^\pm -> pi^0 K^\pm modes. The puzzle from the large B^0 -> pi^0 pi^0 branching ratio still remains. | |
| dc.description | 26 pages, 19 figures, REVTeX4; minor corrections, references added, version to appear in Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0508041 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0508041 | |
| dc.identifier | Phys.Rev.D72:114005,2005 | |
| dc.identifier | doi:10.1103/PhysRevD.72.114005 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177860 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Resolution to the B -> pi K puzzle | |
| dc.type | text |