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Measurement of the D*(2010)(+) natural linewidth and the D*(2010)(+)-D-0 mass difference

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Measurement of the D*(2010)(+) natural linewidth and the D*(2010)(+)-D-0 mass difference

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dc.contributor.author BABAR Collaboration
dc.contributor.author Martínez Vidal, Fernando
dc.contributor.author Oyanguren Campos, Arantza
dc.contributor.author Villanueva Pérez, Pablo
dc.date.accessioned 2014-04-01T11:39:55Z
dc.date.available 2014-04-01T11:39:55Z
dc.date.issued 2013
dc.identifier.citation BABAR Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Villanueva Pérez, Pablo 2013 Measurement of the D*(2010)(+) natural linewidth and the D*(2010)(+)-D-0 mass difference Physical Review D 88 5 052003-1 052003-20
dc.identifier.uri http://hdl.handle.net/10550/33940
dc.description.abstract We measure the mass difference, Delta m(0), between the D*(2010)(+) and the D-0 and the natural linewidth, Gamma, of the transition D*(2010)(+) -> D-0 pi(+). The data were recorded with the BABAR detector at center-of-mass energies at and near the Upsilon(4S) resonance, and correspond to an integrated luminosity of approximately 477 fb(-1). The D-0 is reconstructed in the decay modes D-0 -> K-pi(+) and D-0 -> K-pi(+)pi(-)pi(+). For the decay mode D-0 -> K-pi(+) we obtain Gamma = (83.4 +/- 1.7 +/- 1.5) keV and Delta m(0) = (145425.6 +/- 0.6 +/- 1.8) keV, where the quoted errors are statistical and systematic, respectively. For the D-0 -> K-pi(+)pi(-)pi(+) mode we obtain Gamma = (83.2 +/- 1.5 +/- 2.6) keV and Delta m(0) = (145426.6 +/- 0.5 +/- 2.0) keV. The combined measurements yield Gamma = (83.3 +/- 1.2 +/- 1.4) keV and Delta m(0) = (145425.9 +/- 0.4 +/- 1.7) keV; the width is a factor of approximately 12 times more precise than the previous value, while the mass difference is a factor of approximately 6 times more precise.
dc.relation.ispartof Physical Review D, 2013, vol. 88, num. 5, p. 052003-1-052003-20
dc.subject Física nuclear
dc.title Measurement of the D*(2010)(+) natural linewidth and the D*(2010)(+)-D-0 mass difference
dc.type journal article es_ES
dc.date.updated 2014-04-01T11:39:55Z
dc.identifier.doi 10.1103/PhysRevD.88.052003
dc.identifier.idgrec 091104
dc.rights.accessRights open access es_ES
dc.identifier.url 10.1103/PhysRevD.88.052003

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