Journal
PHYSICAL REVIEW LETTERS
Volume 102, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.091801
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- DOE
- NSF ( USA)
- CEA
- CNRS/ IN2P3 ( France)
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- Alexander von Humboldt Foundation ( Germany)
- STFC [ST/H001166/1, ST/F007418/1, ST/H00095X/1, ST/H000992/1, ST/F00754X/1, PP/E000487/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Physics [0757561] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/F00754X/1, ST/H000992/1, ST/H001166/1, ST/H00095X/1, ST/F007418/1, PP/E000487/1] Funding Source: researchfish
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We search for the semi-inclusive process B-s(0)->(DsDs(*))-D-(*) using 2.8 fb(-1) of pp collisions at s=1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe 26.6 +/- 8.4 signal events with a significance above background of 3.2 standard deviations yielding a branching ratio of B(B-s(0)->(DsDs(*))-D-(*))=0.035 +/- 0.010(stat.)+/- 0.011(syst.). Under certain theoretical assumptions, these double-charm final states saturate CP-even eigenstates in the B-s(0) decays resulting in a width difference of Delta Gamma(CP)(s)/Gamma(s)=0.072 +/- 0.021(stat.)+/- 0.022(syst.).
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