Details

Autor(en) / Beteiligte

• Abazov, V.M.
• Greder, S.
• Miconi, F.
• Ripp-Baudot, I.
• Bernardi, G.
• Brown, D.
• Brown, J.
• Enari, Y.
• Lellouch, J.
• Grivaz, J.-F.
• Guillemin, T.
• Jaffré, M.
• Pétroff, P.
• Grenier, G.
• Kurca, T.
• Lebrun, P.
• Verdier, P.
• Badaud, F.
• Gay, Pascal
• Gris, Ph
• C. Cousinou, M.
• Duperrin, A.
• Geng, W.
• Kajfasz, E.
• Kermiche, S.
• Nagy, E.
• Osman, N.
• Li, H.
• Sajot, G.
• Stark, J.

Titel

Measurement of the semileptonic charge asymmetry using Bs^0 -> D_s mu X decays

Ist Teil von

• Physical review letters, 2013, Vol.110

Ort / Verlag

American Physical Society

Erscheinungsjahr

2013

Quelle

PROLA

Beschreibungen/Notizen

• 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.