Measurement of the Semileptonic Charge Asymmetry using B-S(0) -> D-s mu X Decays
2013 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 110, no 1, 011801- p.Article in journal (Refereed) Published
We present a measurement of the time-integrated flavor-specific semileptonic charge asymmetry in the decays of B-s(0) mesons that have undergone flavor mixing, a(sl)(s), using B-s(0)((B) over bar (0)(s)) -> 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 D0 detector during Run II at the Fermilab Tevatron Colllider. A fit to the difference between the time-integrated D-s(-) and D-s(+) mass distributions of the B-s(0) and ($) over bar (0)(s) candidates yields the flavor-specific asymmetry a(sl)(s) = [-1.12 +/- 0.74(stat) +/- 0.17(syst)]%, which is the most precise measurement and in agreement with the standard model prediction.
Place, publisher, year, edition, pages
2013. Vol. 110, no 1, 011801- p.
IdentifiersURN: urn:nbn:se:uu:diva-193489DOI: 10.1103/PhysRevLett.110.011801ISI: 000313028500003OAI: oai:DiVA.org:uu-193489DiVA: diva2:603267