Inclusive direct CP-asymmetries in charmless B^{+/-}-decays
| dc.creator | Nierste, U. | |
| dc.date | 1998-05-20 | |
| dc.date.accessioned | 2026-07-07T06:32:32Z | |
| dc.date.available | 2026-07-07T06:32:32Z | |
| dc.description | Direct CP-asymmetries in inclusive decay modes can be cleanly calculated by exploiting quark-hadron duality. This is in sharp contrast to CP-asymmetries in exclusive channels, where unknown strong phases prevent a clean extraction of CKM parameters from measured CP-asymmetries. We have calculated the inclusive CP-asymmetries in B^{+/-}-decays into charmless final states with strangeness one or strangeness zero. In our results large logarithms are properly summed to all orders. We find a_{CP} ( Delta S=0 ) = ( 2.0 +1.2 / -1.0) % and a_{CP} ( Delta S=1 ) = (-1.0 +/- 0.5 ) % . The constraints on the apex (rho-bar,eta-bar) of the unitarity triangle obtained from these two CP-asymmetries define circles in the (rho-bar,eta-bar)-plane. a_{CP} ( Delta S=0 ) measures sin(gamma) times |V_{cb}/V_{ub}|. The presented work has been done in collaboration with Gaby Ostermaier and Alexander Lenz. | |
| dc.description | 2 pages, 1 figure, Talk at the "Recontre de Moriond on QCD and High Energy Hadronic Interactions", 1998, Les Arcs, France | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9805388 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9805388 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/98929 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Inclusive direct CP-asymmetries in charmless B^{+/-}-decays | |
| dc.type | text |