Studies of CP-conserving and CP-violating B(s) mixing parameters with the D0 experiment
This paper summarizes the recent results of the Run IIa D0 experiment at the Tevatron Collider at Fermilab on the observable parameters of the B{sub s} meson. A measurement of the branching fraction Br(B{sup 0}{sub s} {yields} D{sup (*)}{sub s} D{sup (*)}{sub s}) is reported, which provides an estimate of the width difference {Delta}{Gamma}{sup CP}{sub s}/{Delta}{Gamma}{sub s}. Through the decay B{sub s} {yields} J/{phi}{psi} the width difference {Delta}{Gamma}{sub s} is extracted, and for the first time a constraint is set on the CP-violating phase {psi}{sub s}, although a four-fold ambiguity remains. This result is combined with other D0 measurements to yield {Delta}{Gamma}{sub s} = 0.13 {+-} 0.09 ps{sup -1}, {psi}{sub s} = -0.70{sup +0.47}{sup -0.39}.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 919946
- Report Number(s):
- FERMILAB-CONF-07-556-E; arXiv eprint number arXiv:0710.3235; TRN: US0806527
- Resource Relation:
- Conference: Presented at 15th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY07), Karlsruhe, Germany, 26 Jul - 1 Aug 2007
- Country of Publication:
- United States
- Language:
- English
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