Semi-Leptonic b-decay at Intermediate Recoil
| dc.creator | Dowling, Matthew | |
| dc.creator | Pak, Alexey | |
| dc.creator | Czarnecki, Andrzej | |
| dc.date | 2008-09-02 | |
| dc.date | 2008-10-08 | |
| dc.date.accessioned | 2026-07-07T11:45:43Z | |
| dc.date.available | 2026-07-07T11:45:43Z | |
| dc.description | We compute the O(α_s^2) corrections to the differential rate of the semileptonic decay b -> clv at the "intermediate recoil" point, where the c-quark mass and the invariant mass of the leptons are equal. The calculation is based on an expansion around two opposite limits of the quark masses m_{b,c}: m_c ~ m_b and m_c << m_b. The former case was previously studied; we correct and extend that result. The latter case is new. The smooth matching of both expansions provides a check of both. We clarify the discrepancy between the recent determinations of the full NNLO QCD correction to the semileptonic b -> c rate, and its earlier estimate. | |
| dc.description | 9 pages, 6 figures, Replaced figures, small format and typo corrections, added appendix and references | |
| dc.identifier | https://arxiv.org/abs/0809.0491 | |
| dc.identifier | http://arxiv.org/abs/0809.0491 | |
| dc.identifier | Phys.Rev.D78:074029,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.074029 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/201975 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Semi-Leptonic b-decay at Intermediate Recoil | |
| dc.type | text |