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Study of the decay B-s(0)->(DsDs(*))-D-(*)
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2007 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 99, no 24, 241801Article in journal (Refereed) Published
Abstract [en]

We report a study of the decay B-s(0)->(DsDs(*))-D-(*) using a data sample corresponding to 1.3 fb(-1) of integrated luminosity collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. One D-s((*)) meson was partially reconstructed in the decay D-s ->phi mu nu, and the other D-s((*)) meson was identified using the decay D-s ->phi pi where no attempt was made to distinguish D-s and D-s(*) states. For the branching fraction Br(B-s(0)->(DsDs(*))-D-(*)) we obtain a 90% C.L. range [0.002,0.080] and central value 0.039(-0.017)(+0.019)(stat)(-0.015)(+0.016)(syst). This was subsequently used to make the most precise estimate of the width difference Delta Gamma(CP)(s) in the B-s(0)-(B)over bar(s)(0) system: Delta Gamma(CP)(s)/Gamma(s)=0.079(-0.035)(+0.038)(stat)(-0.030)(+0.031)(syst).

Place, publisher, year, edition, pages
2007. Vol. 99, no 24, 241801
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-260502DOI: 10.1103/PhysRevLett.99.241801ISI: 000251674300014PubMedID: 18233437OAI: oai:DiVA.org:uu-260502DiVA: diva2:847396
Available from: 2015-08-20 Created: 2015-08-20 Last updated: 2015-08-20Bibliographically approved

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