Taming the end-point singularities in heavy-to-light decays
| dc.creator | Lee, Jong-Phil | |
| dc.date | 2006-12-07 | |
| dc.date | 2007-01-30 | |
| dc.date.accessioned | 2026-07-07T11:02:20Z | |
| dc.date.available | 2026-07-07T11:02:20Z | |
| dc.description | It is argued that there is a fundamental momentum cutoff in heavy-to-light transitions, which is caused by possible Cherenkov gluon radiation when an energetic light parton travels through the ''brown muck''. The soft-overlap contributions where the partonic momenta configuration is highly asymmetric are disfavored, and the problematic end-point singularities and the double countings are absent in this framework. A simple calculation with a natural scale for the cutoff gives a plausible result for the $B\toπ$ form factor. | |
| dc.description | 7 pages, 1 figure. Typos corrected; to appear in Phys. Rev. D (Rap. Comm.) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0612083 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0612083 | |
| dc.identifier | Phys.Rev.D75:031501,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.031501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188219 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Taming the end-point singularities in heavy-to-light decays | |
| dc.type | text |