dc.contributor |
Universitat Ramon Llull. La Salle |
dc.contributor |
CERN |
dc.contributor.author |
Badalov, Alexey |
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 |
2020-07-23T11:02:11Z |
dc.date.available |
2020-07-23T11:02:11Z |
dc.date.created |
2015 |
dc.date.issued |
2015-12-29 |
dc.identifier.uri |
http://hdl.handle.net/2072/376567 |
dc.format.extent |
15 p. |
dc.language.iso |
eng |
dc.publisher |
American Physical Society |
dc.relation.ispartof |
Physical Review D, 2015, Vol. 92, No. 11 (Desembre) |
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 |
Col·lisions (Física nuclear) |
dc.subject.other |
Partícules (Física nuclear) |
dc.title |
Model-independent confirmation of the Z(4430)− state |
dc.type |
info:eu-repo/semantics/article |
dc.type |
info:eu-repo/semantics/publishedVersion |
dc.subject.udc |
539 - Constitució física de la matèria |
dc.embargo.terms |
cap |
dc.identifier.doi |
https://doi.org/10.1103/PhysRevD.92.112009 |
dc.rights.accessLevel |
info:eu-repo/semantics/openAccess |
dc.description.abstract |
The decay B0→ψ(2S)K+π− is analyzed using 3 fb−1 of pp collision data collected with the LHCb detector. A model-independent description of the ψ(2S)π mass spectrum is obtained, using as input the Kπ mass spectrum and angular distribution derived directly from data, without requiring a theoretical description of resonance shapes or their interference. The hypothesis that the ψ(2S)π mass spectrum can be described in terms of Kπ reflections alone is rejected with more than 8σ significance. This provides confirmation, in a model-independent way, of the need for an additional resonant component in the mass region of the Z(4430)− exotic state. |