Search for the rare decays Bs0→μ μ- and B 0→μ μ -

R Aaij; C Abellan Beteta; B Adeva; M Adinolfi; C Adrover; A Affolder; Z Ajaltouni; J Albrecht; F Alessio; M Alexander; G Alkhazov; P Alvarez Cartelle; AA Alves; S Amato; Y Amhis; J Anderson; RB Appleby; O Aquines Gutierrez; F Archilli; L Arrabito; A Artamonov; M Artuso; E Aslanides; G Auriemma; S Bachmann; JJ Back; DS Bailey; V Balagura; W Baldini; RJ Barlow; C Barschel; S Barsuk; W Barter; A Bates; C Bauer; T Bauer; A Bay; I Bediaga; S Belogurov; K Belous; I Belyaev; E Ben-Haim; M Benayoun; G Bencivenni; S Benson; J Benton; R Bernet; MO Bettler; M van Beuzekom; A Bien; S Bifani; T Bird; A Bizzeti; PM Bjørnstad; T Blake; F Blanc; C Blanks; J Blouw; S Blusk; A Bobrov; V Bocci; A Bondar; N Bondar; W Bonivento; S Borghi; A Borgia; TJV Bowcock; C Bozzi; T Brambach; J van den Brand; J Bressieux; D Brett; M Britsch; T Britton; NH Brook; H Brown; A Büchler-Germann; I Burducea; A Bursche; J Buytaert; S Cadeddu; O Callot; M Calvi; M Calvo Gomez; A Camboni; P Campana; A Carbone; G Carboni; R Cardinale; A Cardini; L Carson; K Carvalho Akiba; G Casse; M Cattaneo; C Cauet; M Charles; P Charpentier; N Chiapolini; K Ciba; X Cid Vidal

Journal article

Search for the rare decays Bs0→μ μ- and B 0→μ μ -

R Aaij, C Abellan Beteta, B Adeva, M Adinolfi, C Adrover, A Affolder, Z Ajaltouni, J Albrecht, F Alessio, M Alexander, G Alkhazov, P Alvarez Cartelle, AA Alves, S Amato, Y Amhis, J Anderson, RB Appleby, O Aquines Gutierrez, F Archilli, L Arrabito Show all

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics | ELSEVIER | Published : 2012

DOI: 10.1016/j.physletb.2012.01.038

Abstract

A search for the decays Bs0→μ+μ- and B 0→μ +μ - is performed with 0.37 fb -1 of pp collisions at s=7 TeV collected by the LHCb experiment in 2011. The upper limits on the branching fractions are B(Bs0→μ+μ-)<1.6×10-8 and B(B0→μ+μ-)<3.6×10-9 at 95% confidence level. A combination of these results with the LHCb limits obtained with the 2010 dataset leads to B(Bs0→μ+μ-)<1.4×10-8 and B(B0→μ+μ-)<3.2×10-9 at 95% confidence level. © 2012 CERN.

University of Melbourne Researchers

Phillip Urquijo Author

Grants

Awarded by Stichting voor Fundamenteel Onderzoek der Materie

Funding Acknowledgements

We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at CERN and at the LHCb institutes, and acknowledge support from the National Agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil); CERN; NSFC (China); CNRS/IN2P3 (France); BMBF, DFG, HGF and MPG (Germany); SFI (Ireland); INFN (Italy); FOM and NWO (The Netherlands); SCSR (Poland); ANCS (Romania); MinES of Russia and Rosatom (Russia); MICINN, XuntaGal and GENCAT (Spain); SNSF and SER (Switzerland); NAS Ukraine (Ukraine); STFC (United Kingdom); NSF (USA). We also acknowledge the support received from the ERC under FP7 and the Region Auvergne.