INVESTIGADORES
OTERO Y GARZON Gustavo Javier
artículos
Título:
Measurement of the Charge Asymmetry in Semileptonic B0s
Autor/es:
GUSTAVO OTERO Y GARZON, THE DZERO COLLABORATION
Revista:
PHYSICAL REVIEW LETTERS
Referencias:
Año: 2007 p. 1518011 - 1518017
ISSN:
0031-9007
Resumen:
We have performed the first direct measurement of the time-integrated flavor untagged chargeasymmetry in semileptonic B0sdecays As;untSL by comparing the decay rate of B0s! Ds X, whereDs ! and ! KK, with the charge-conjugate B0sdecay rate. This sample was selectedfrom 1:3 fb1 of data collected by the D0 experiment in run II of the Fermilab Tevatron collider. Weobtain As;untSL 1:23 0:97stat 0:17syst 102. Assuming that ms=s 1, this result canbe translated into a measurement of the CP-violating phase in B0smixing: s=ms tans 2:45 1:93stat 0:35syst 102.
