Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Measurement of the semileptonic charge asymmetry using Bs^0 -> D_s mu X decays
AU - Bertram, Iain
AU - Borissov, Guennadi
AU - Williams, Mark
AU - Fox, Harald
AU - Ross, Anthony
AU - Ratoff, Peter
AU - D0 Collaboration, The
N1 - 7 pages, 3 figures, submitted to Phys. Rev. Lett
PY - 2013/1/3
Y1 - 2013/1/3
N2 - We present a measurement of the time-integrated flavor-specific semileptonic charge asymmetry in the decays of Bs mesons that have undergone flavor mixing, a^s_ls, using B_s^0 (barB_s^0) -> D_s^-/+ mu^+/- X decays, with D_s^-/+ -> phi pi^-/+ and phi K^+ K^-, using 10.4 fb^-1 of proton-antiproton collisions collected by the D0 detector during Run II at the Fermilab Tevatron Collider. A fit to the difference between the time-integrated D_s^-$ and D_s^+ mass distributions of the B_s^0 and barB^0_s candidates yields the flavor-specific asymmetry a^s_ls = [-1.08 pm 0.72 (stat) +/-0.17 (syst)]% which is the most precise measurement and in agreement with the standard model prediction.
AB - We present a measurement of the time-integrated flavor-specific semileptonic charge asymmetry in the decays of Bs mesons that have undergone flavor mixing, a^s_ls, using B_s^0 (barB_s^0) -> D_s^-/+ mu^+/- X decays, with D_s^-/+ -> phi pi^-/+ and phi K^+ K^-, using 10.4 fb^-1 of proton-antiproton collisions collected by the D0 detector during Run II at the Fermilab Tevatron Collider. A fit to the difference between the time-integrated D_s^-$ and D_s^+ mass distributions of the B_s^0 and barB^0_s candidates yields the flavor-specific asymmetry a^s_ls = [-1.08 pm 0.72 (stat) +/-0.17 (syst)]% which is the most precise measurement and in agreement with the standard model prediction.
UR - http://www.scopus.com/inward/record.url?scp=84872045711&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.110.011801
DO - 10.1103/PhysRevLett.110.011801
M3 - Journal article
VL - 110
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 1
M1 - 011801
ER -