Electroweak Corrections to the Charm Quark Contribution to K+ -> pi+ nu nu-bar
| dc.creator | Brod, Joachim | |
| dc.creator | Gorbahn, Martin | |
| dc.date | 2008-05-27 | |
| dc.date.accessioned | 2026-07-07T11:51:09Z | |
| dc.date.available | 2026-07-07T11:51:09Z | |
| dc.description | We compute the leading-log QED, the next-to-leading-log QED-QCD, and the electroweak corrections to the charm quark contribution relevant for the rare decay K+ -> pi+ nu nu-bar. The corresponding parameter P_c(X) is increased by up to 2% with respect to the pure QCD estimate to P_c(X) = 0.372 +- 0.015 for m_c(m_c)= (1.286 +- 0.013) GeV, alphas(M_Z) = 0.1176 +- 0.0020 and |V_us| = 0.2255. For the branching ratio we find B(K+ -> pi+ nu nu-bar) = (8.5 +- 0.7)*10^{-11}, where the quoted uncertainty is dominated by the CKM elements. | |
| dc.description | 16 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/0805.4119 | |
| dc.identifier | http://arxiv.org/abs/0805.4119 | |
| dc.identifier | Phys.Rev.D78:034006,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.034006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203798 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Electroweak Corrections to the Charm Quark Contribution to K+ -> pi+ nu nu-bar | |
| dc.type | text |