Studies of CP-conserving and CP-violating B(s) mixing parameters with the D0 experiment

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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 ... continued below

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4 pages

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Walder, James & U., /Lancaster October 1, 2007.

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Description

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}.

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4 pages

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  • Presented at 15th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY07), Karlsruhe, Germany, 26 Jul - 1 Aug 2007

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  • Report No.: FERMILAB-CONF-07-556-E
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 919946
  • Archival Resource Key: ark:/67531/metadc901238

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  • October 1, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 2, 2016, 12:53 p.m.

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Walder, James & U., /Lancaster. Studies of CP-conserving and CP-violating B(s) mixing parameters with the D0 experiment, article, October 1, 2007; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc901238/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.