TY - JOUR
T1 - Measurement of the B0B0 and Bs 0Bs 0 production asymmetries in pp collisions at √s = 7TeV
AU - LHCb Collaboration
AU - Aaij, R.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Affolder, A.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Ali, S.
AU - Alkhazov, G.
AU - Alvarez Cartelle, P.
AU - Alves, A. A.
AU - Amato, S.
AU - Amerio, S.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Anderson, J.
AU - Andreassen, R.
AU - Andreotti, M.
AU - Andrews, J. E.
AU - Appleby, R. B.
AU - Aquines Gutierrez, O.
AU - Archilli, F.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Auriemma, G.
AU - Baalouch, M.
AU - Bachmann, S.
AU - Back, J. J.
AU - Badalov, A.
AU - Baldini, W.
AU - Barlow, R. J.
AU - Barschel, C.
AU - Barsuk, S.
AU - Barter, W.
AU - Batozskaya, V.
AU - Battista, V.
AU - Bay, A.
AU - Beaucourt, L.
AU - Beddow, J.
AU - Bedeschi, F.
AU - Bediaga, I.
AU - Belogurov, S.
AU - Belous, K.
AU - Belyaev, I.
AU - Calvo Gomez, M.
AU - Vilasis-Cardona, X.
N1 - Funding Information:
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 the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES , CNPq , FAPERJ and FINEP (Brazil); NSFC (China); CNRS/IN2P3 (France); BMBF , DFG , HGF and MPG (Germany); SFI (Ireland); INFN (Italy); FOM and NWO (The Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MinES and FANO (Russia); MinECo (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); NSF (USA). The Tier1 computing centres are supported by IN2P3 (France), KIT and BMBF (Germany), INFN (Italy), NWO and SURF (The Netherlands), PIC (Spain), GridPP (United Kingdom). We are indebted to the communities behind the multiple open source software packages on which we depend. We are also thankful for the computing resources and the access to software R&D tools provided by Yandex LLC (Russia). Individual groups or members have received support from EPLANET , Marie Skłodowska-Curie Actions and ERC (European Union), Conseil général de Haute-Savoie , Labex ENIGMASS and OCEVU , Région Auvergne (France), RFBR (Russia), XuntaGal and GENCAT (Spain), Royal Society and Royal Commission for the Exhibition of 1851 (United Kingdom).
Publisher Copyright:
© 2014 The Authors.
PY - 2014/12/2
Y1 - 2014/12/2
N2 - The B0-B0 and Bs 0Bs 0 production asymmetries, AP(B0) and AP(Bs 0), are measured by means of a time-dependent analysis of B0→J/ψK*0, B0→D-π+ and Bs 0→Ds-π+ decays, using a data sample corresponding to an integrated luminosity of 1.0fb-1, collected by LHCb in pp collisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and Bs 0 mesons within the LHCb acceptance. The production asymmetries, integrated over pT and η in the range 4T<30GeV/c and 2.5<η<4.5, are determined to be AP(B0)=(-0.35±0.76±0.28)% and AP(Bs 0)=(1.09±2.61±0.66)%, where the first uncertainties are statistical and the second systematic.
AB - The B0-B0 and Bs 0Bs 0 production asymmetries, AP(B0) and AP(Bs 0), are measured by means of a time-dependent analysis of B0→J/ψK*0, B0→D-π+ and Bs 0→Ds-π+ decays, using a data sample corresponding to an integrated luminosity of 1.0fb-1, collected by LHCb in pp collisions at a centre-of-mass energy of 7TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and Bs 0 mesons within the LHCb acceptance. The production asymmetries, integrated over pT and η in the range 4T<30GeV/c and 2.5<η<4.5, are determined to be AP(B0)=(-0.35±0.76±0.28)% and AP(Bs 0)=(1.09±2.61±0.66)%, where the first uncertainties are statistical and the second systematic.
UR - http://www.scopus.com/inward/record.url?scp=84937644673&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2014.10.005
DO - 10.1016/j.physletb.2014.10.005
M3 - Article
AN - SCOPUS:84937644673
SN - 0370-2693
VL - 739
SP - 218
EP - 228
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -