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Measurement of the D*(2010)(+) Meson Width and the D*(2010)(+) ¿ D-0 Mass Difference

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Measurement of the D*(2010)(+) Meson Width 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 2014-04-01T11:29:09Z
dc.date.available 2014-04-01T11:29:09Z
dc.date.issued 2013
dc.identifier.citation BABAR Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Villanueva Pérez, Pablo 2013 Measurement of the D*(2010)(+) Meson Width and the D*(2010)(+) ¿ D-0 Mass Difference Physical Review Letters 111 11 111801-1 111801-8
dc.identifier.uri http://hdl.handle.net/10550/33935
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 gamma(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(+) 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 +/- 18) 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 Letters, 2013, vol. 111, num. 11, p. 111801-1-111801-8
dc.subject Física nuclear
dc.title Measurement of the D*(2010)(+) Meson Width and the D*(2010)(+) ¿ D-0 Mass Difference
dc.type journal article es_ES
dc.date.updated 2014-04-01T11:29:09Z
dc.identifier.doi 10.1103/PhysRevLett.111.111801
dc.identifier.idgrec 091100
dc.rights.accessRights open access es_ES
dc.identifier.url 10.1103/PhysRevLett.111.111801

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