Anomalous enhancement of a penguin hadronic matrix element in B->K eta'
| dc.creator | Gerard, J. -M. | |
| dc.creator | Kou, E. | |
| dc.date | 2006-09-28 | |
| dc.date.accessioned | 2026-07-07T11:05:49Z | |
| dc.date.available | 2026-07-07T11:05:49Z | |
| dc.description | We estimate the density matrix element for the pi^0, eta and eta' production from the vacuum in the large-N_c limit. As a consequence, we find that the QCD axial anomaly leads to highly non-trivial corrections to the usual flavour SU(3) relations between B^0-> K^0 pi^0, B^0-> K^0 eta and B^0-> K^0 eta' decay amplitudes. These corrections may explain why the B-> K eta' branching ratio is about six times larger than the B-> K pi one. | |
| dc.description | 5 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0609300 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0609300 | |
| dc.identifier | Phys.Rev.lett.97:261804,2006 | |
| dc.identifier | doi:10.1103/PhysRevLett.97.261804 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189322 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Anomalous enhancement of a penguin hadronic matrix element in B->K eta' | |
| dc.type | text |