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 |
2020-06-19T17:29:42Z |
dc.date.available |
2020-06-19T17:29:42Z |
dc.date.created |
2012 |
dc.date.issued |
2012-04-09 |
dc.identifier.uri |
http://hdl.handle.net/2072/376153 |
dc.format.extent |
7 p. |
dc.language.iso |
eng |
dc.publisher |
American Physical Society |
dc.relation.ispartof |
Physical Review Letters, 2012, Vol. 108, No. 15 (Abril) |
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.title |
Observation of B(s)(0) → J/ψf(2)'(1525) in J/ψK+ K- final states |
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/PhysRevLett.108.151801 |
dc.rights.accessLevel |
info:eu-repo/semantics/openAccess |
dc.description.abstract |
The decay ¯¯¯B0s→J/ψK+K− is investigated using 0.16 fb−1 of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψϕ channel is well known, final states at higher K+K− masses have not previously been studied. In the K+K− mass spectrum we observe a significant signal in the f′2(1525) region as well as a nonresonant component. After subtracting the nonresonant component, we find B(¯¯¯B0s→J/ψf′2(1525))/B(¯¯¯B0s→J/ψϕ)=(26.4±2.7±2.4)%. |