Show simple item record

dc.contributor.authorBesson, David Zeke
dc.date.accessioned2007-04-13T20:08:08Z
dc.date.available2007-04-13T20:08:08Z
dc.date.issued2006-03
dc.identifier.citationRosner, JL, Adam, NE, et al. Experimental limits on weak annihilation contributions to b -> ul nu decays. PHYSICAL REVIEW LETTERS. March 2006. 96(12)
dc.identifier.urihttp://hdl.handle.net/1808/1420
dc.description.abstractWe present the first experimental limits on high-q(2) contributions to charmless semileptonic B decays of the form expected from the weak annihilation (WA) decay mechanism. Such contributions could bias determinations of vertical bar V(ub)vertical bar from inclusive measurements of B -> X(u)l nu. Using a wide range of models based on available theoretical input we set a limit of Gamma(WA)/Gamma(b -> u)< 7.4% (90% confidence level) on the WA fraction, and assess the impact on previous inclusive determinations of vertical bar V(ub)vertical bar.
dc.language.isoen_US
dc.publisherAMERICAN PHYSICAL SOC
dc.relation.isversionofhttp://publish.aps.org/
dc.titleExperimental limits on weak annihilation contributions to b -> ul nu decays
dc.typeArticle
dc.rights.accessrightsopenAccess


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record