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First observations of (B)over-bar(s)(0) -> D+D-, Ds+D- and D-0(D)over-bar(0) decays
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First observations of (B)over-bar(s)(0) -> D+D-, Ds+D- and D-0(D)over-bar(0) decays
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| dc.contributor.author | LHCb Collaboration | |
| dc.contributor.author | Oyanguren Campos, Arantza | |
| dc.contributor.author | Ruiz Valls, Pablo | |
| dc.date.accessioned | 2014-03-31T10:11:56Z | |
| dc.date.available | 2014-03-31T10:11:56Z | |
| dc.date.issued | 2013 | |
| dc.identifier.citation | LHCb Collaboration Oyanguren Campos, Arantza Ruiz Valls, Pablo 2013 First observations of (B)over-bar(s)(0) -> D+D-, Ds+D- and D-0(D)over-bar(0) decays Physical Review D 87 9 092007-1 092007-12 | |
| dc.identifier.uri | http://hdl.handle.net/10550/33835 | |
| dc.description.abstract | First observations and measurements of the branching fractions of the (B) over bar (0)(s) -> D+D-, (B) over bar (0)(s) -> Ds+D- and (B) over bar (0)(s) -> D-0(D) over bar (0) decays are presented using 1.0 fb(-1) of data collected by the LHCb experiment. These branching fractions are normalized to those of (B) over bar (0) -> D+D-, B-0 -> D-Ds+ and B- -> (DDs-)-D-0, respectively. An excess of events consistent with the decay (B) over bar (0) -> D-0(D) over bar (0) is also seen, and its branching fraction is measured relative to that of B- -> D0Ds-. Improved measurements of the branching fractions B((B) over bar (0)(s) -> Ds+Ds-) and B(B- -> (DDs-)-D-0) are reported, each relative to B(B-0 -> D-Ds+). The ratios of branching fractions are B((B) over bar (0)(s) -> D+D-)/B((B) over bar (0) -> D+D-) = 1.08 +/- 0.20 +/- 0.10, B((B) over bar (0)(s) -> Ds+D-)/B(B-0 -> D-Ds+) = 0.050 +/- 0.008 +/- 0.004, B((B) over bar (0)(s) -> D-0(D) over bar (0))/B((B) over bar (-) -> (DDs-)-D-0) = 0.019 +/- 0.003 +/- 0.003, B((B) over bar (0) -> D-0(D) over bar (0))/B(B- -> (DDs-)-D-0) < 0.0024 at 90% CL, B(<(B)over bar>(0)(s) -> D-s(+)(D) over bar (-)(s))/B(B-0 -> D-Ds+) = 0.56 +/- 0.03 +/- 0.04, B(B -> (DDs)-D-0)/B(B-0 -> D-Ds+) = 1.22 +/- 0.02 +/- 0.07, where the uncertainties are statistical and systematic, respectively. | |
| dc.relation.ispartof | Physical Review D, 2013, vol. 87, num. 9, p. 092007-1-092007-12 | |
| dc.subject | Física nuclear | |
| dc.subject | Partícules (Física nuclear) | |
| dc.title | First observations of (B)over-bar(s)(0) -> D+D-, Ds+D- and D-0(D)over-bar(0) decays | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-03-31T10:11:56Z | |
| dc.identifier.doi | 10.1103/PhysRevD.87.092007 | |
| dc.identifier.idgrec | 094076 | |
| dc.rights.accessRights | open access | es_ES |
| dc.identifier.url | 10.1103/PhysRevD.87.092007 |
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