Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/22036
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Measurement of Semileptonic B Decays into Orbitally Excited Charmed Mesons

AutorBabar Collaboration; Azzolini, Virginia; López-March, Neus CSIC; Martínez-Vidal, Fernando CSIC ORCID; Milanés, Diego A. CSIC ORCID; Oyanguren, Arantza CSIC ORCID; Aubert, B.
Fecha de publicación31-jul-2009
EditorAmerican Physical Society
CitaciónPhysical Review Letters 103 (5): 051803 (2009)
ResumenWe present a study of B decays into semileptonic final states containing charged and neutral D-1(2420) and D-2*(2460). The analysis is based on a data sample of 208 fb(-1) collected at the Y(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. With a simultaneous fit to four different decay chains, the semileptonic branching fractions are extracted from measurements of the mass difference Delta m = m(D**) - m(D) distribution. Product branching fractions are determined to be B(B+ -> D(1)(0)l(+)nu(l)) x B(D-1(0) -> D*+pi(-)) = (2.97 +/- 0.17 +/- 0.17) x 10(-3), B(B+ -> D-2*l(+)nu(e)) x B(D-2*(0) -> D(*)+pi(-)) = (2.29 +/- 0.23 +/- 0.21) x 10(-3), B(B-0 -> D(1)(-)l(+)nu(l)) x B(D-1(-) -> D*(0)pi(-)) = (2.78 +/- 0.24 +/- 0.25) x 10(-3) and B(B-0 -> D-2*(-)l(+)nu(l)) x B(D-2(*-) -> D-(*)0 pi(-)) = (1.77 +/- 0.26 +/- 0.11) x 10(-3). In addition we measure the branching ratio Gamma(D2* -> D pi(-))/Gamma(D-2* -> D-(*)pi(-)) = 0.62 +/- 0.03 +/- 0.02.
Versión del editorhttp://dx.doi.org/ 10.1103/PhysRevLett.103.051803
URIhttp://hdl.handle.net/10261/22036
DOI10.1103/PhysRevLett.103.051803
ISSN0031-9007
Aparece en las colecciones: (IFIC) Artículos




Ficheros en este ítem:
Fichero Descripción Tamaño Formato
orbitally excited.pdf309,35 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

29
checked on 04-mar-2024

WEB OF SCIENCETM
Citations

30
checked on 25-feb-2024

Page view(s)

308
checked on 18-mar-2024

Download(s)

220
checked on 18-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.