Mostra el registre parcial de l'element

dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorCamboni, Alessandro
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-11-20T06:20:36Z
dc.date.accessioned2023-10-02T06:26:51Z
dc.date.available2020-11-20T06:20:36Z
dc.date.available2023-10-02T06:26:51Z
dc.date.created2013
dc.date.issued2013-11-01
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3152
dc.description.abstractThe result of a search for the decay B+c→B0sπ+ is presented, using the B0s→D−sπ+ and B0s→J/ψϕ channels. The analysis is based on a data sample of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 1  fb−1 taken at a center-of-mass energy of 7 TeV, and 2  fb−1 taken at 8 TeV. The decay B+c→B0sπ+ is observed with significance in excess of 5 standard deviations independently in both decay channels. The measured product of the ratio of cross sections and branching fraction is [σ(B+c)/σ(B0s)]×B(B+c→B0sπ+)=[2.37±0.31 (stat)±0.11 (syst)+0.17−0.13(τB+c)]×10−3, in the pseudorapidity range 2<η(B)<5, where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the B+c lifetime. This is the first observation of a B meson decaying to another B meson via the weak interaction.eng
dc.format.extent9 p.cat
dc.language.isoengcat
dc.publisherAmerican Physical Societycat
dc.relation.ispartofPhysical Review Letters , 2013, Vol. 111, No.18 (Novembre)cat
dc.rightsAttribution 4.0 International
dc.rights© CERN
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)cat
dc.subject.otherPartícules (Física nuclear)cat
dc.subject.otherCol·lisions (Física nuclear)cat
dc.subject.otherMesonscat
dc.titleObservation of the Decay B+c → B0s π+cat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc539
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.111.181801cat


Fitxers en aquest element

 

Aquest element apareix en la col·lecció o col·leccions següent(s)

Mostra el registre parcial de l'element

Attribution 4.0 International
Excepte que s'indiqui una altra cosa, la llicència de l'ítem es descriu com http://creativecommons.org/licenses/by/4.0/
Comparteix a TwitterComparteix a LinkedinComparteix a FacebookComparteix a TelegramComparteix a WhatsappImprimeix