dc.contributor |
Universitat Ramon Llull. La Salle |
dc.contributor |
CERN |
dc.contributor.author |
Calvo Gómez, Míriam |
dc.contributor.author |
Camboni, Alessandro |
dc.contributor.author |
Vilasís Cardona, Xavier |
dc.contributor.author |
LHCb Collaboration - CERN |
dc.date.accessioned |
2020-07-03T10:31:35Z |
dc.date.available |
2020-07-03T10:31:35Z |
dc.date.created |
2012 |
dc.date.issued |
2012-06-11 |
dc.identifier.uri |
http://hdl.handle.net/2072/376278 |
dc.format.extent |
13 p. |
dc.language.iso |
eng |
dc.publisher |
American Physical Society |
dc.relation.ispartof |
Physical Review D, 2012, Vol. 85 , No.11 (Juny) |
dc.rights |
L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by/4.0/ |
dc.rights |
© CERN |
dc.source |
RECERCAT (Dipòsit de la Recerca de Catalunya) |
dc.subject.other |
Gran col·lisionador d'hadrons (França i Suïssa) |
dc.subject.other |
Partícules (Física nuclear) |
dc.subject.other |
Col·lisions (Física nuclear) |
dc.subject.other |
Protons |
dc.subject.other |
Hadrons |
dc.title |
Searches for Majorana neutrinos in B− decays |
dc.type |
info:eu-repo/semantics/article |
dc.type |
info:eu-repo/semantics/publishedVersion |
dc.subject.udc |
53 - Física |
dc.embargo.terms |
cap |
dc.identifier.doi |
https://doi.org/10.1103/PhysRevD.85.112004 |
dc.rights.accessLevel |
info:eu-repo/semantics/openAccess |
dc.description.abstract |
Searches for heavy Majorana neutrinos in B− decays in final states containing hadrons plus a μ−μ− pair have been performed using 0.41 fb−1 of data collected with the LHCb detector in proton-proton collisions at a center-of-mass energy of 7 TeV. The D+μ−μ− and D*+μ−μ− final states can arise from the presence of virtual Majorana neutrinos of any mass. Other final states containing π+, D+s, or D0π+ can be mediated by an on-shell Majorana neutrino. No signals are found and upper limits are set on Majorana neutrino production as a function of mass, and also on the B− decay branching fractions. |