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Measurement of the relative width difference of the B0 -B¯0 system with the ATLAS detector

Author
ATLAS Collaboration; Aaboud, M.; Barreriro, F.; De la Torre, H.; Peso Malagón, José deluntranslated; Glasman Kuguel, Claudia Beatrizuntranslated; Terrón Cuadrado, Juanuntranslated
Entity
UAM. Departamento de Física Teórica
Publisher
Springer Verlag; SISSA
Date
2016-06-14
Citation
10.1007/JHEP06(2016)081
Journal of High Energy Physics 2016.6 (2016): 81
 
 
 
ISSN
1029-8479 (online); 1126-6708 (print)
DOI
10.1007/JHEP06(2016)081
Funded by
We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, FP7, Horizon 2020 and Marie Sklodowska-Curie Actions, European Union; Investissements d’Avenir Labex and Idex, ANR, Région Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (U.K.) and BNL (U.S.A.) and in the Tier-2 facilities worldwide
Project
info:eu-repo/grantAgreement/EC/FP7/246806
Editor's Version
http://dx.doi.org/10.1007/JHEP06(2016)081
Subjects
B physics; Hadron-hadron scattering (experiments); Física
URI
http://hdl.handle.net/10486/679413
Note
Journal of High Energy Physics 2016.6 (2016): 081 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Artículo escrito por un elevado número de autores, sólo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiera, y los autores pertenecientes a la UAM
Rights
© 2016, The Author(s)

Licencia Creative Commons
Esta obra está bajo una Licencia Creative Commons Atribución 4.0 Internacional.

Abstract

This paper presents the measurement of the relative width difference ∆Γd/Γd of the B0 -B¯0 system using the data collected by the ATLAS experiment at the LHC in pp collisions at √ s = 7 TeV and √ s = 8 TeV and corresponding to an integrated luminosity of 25.2 fb−1. The value of ∆Γd/Γd is obtained by comparing the decay-time distributions of B0 → J/ψKS and B0 → J/ψK∗0 (892) decays. The result is ∆Γd/Γd = (−0.1±1.1 (stat.) ± 0.9 (syst.)) × 10−2. Currently, this is the most precise single measurement of ∆Γd/Γd. It agrees with the Standard Model prediction and the measurements by other experiments
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Google™ Scholar:ATLAS Collaboration - Aaboud, M. - Barreriro, F. - De la Torre, H. - Peso Malagón, José del - Glasman Kuguel, Claudia Beatriz - Terrón Cuadrado, Juan

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  • Producción científica en acceso abierto de la UAM [17768]

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Universidad Autónoma de Madrid. Biblioteca
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