We present a measurement of the branching fractions for the Cabibbo-favored radiative decay D-0 ->(K)overbar(*0)gamma and the Cabibbo-suppressed radiative decay D-0 ->phi gamma. These measurements are based on a data sample corresponding to an integrated luminosity of 387.1 fb(-1) and recorded with the BABAR detector at the PEP-II e(+)e(-) asymmetric-energy collider operating at center-of-mass energies 10.58 and 10.54 GeV. We measure the branching fractions relative to the well-studied decay D-0 -> K-pi(+) and find B(D-0 ->(K)overbar(*0)gamma)/B(D-0 -> K-pi(+))=(8.43 +/- 0.51 +/- 0.70)x10(-3) and B(D-0 ->phi gamma)/B(D-0 -> K-pi(+))=(7.15 +/- 0.78 +/- 0.69)x10(-4), where the first error is statistical and the second is systematic. This is the first observation of the decay mode D-0 ->(K)overbar(*0)gamma.

Measurement of the branching fractions of the radiative charm decays D-0 ->(K)overbar(*0)gamma and D-0 ->phi gamma

ANDREOTTI, Mirco;CALABRESE, Roberto;CECCHI, Annalisa;CIBINETTO, Gianluigi;FRANCHINI, Paolo;LUPPI, Eleonora;NEGRINI, Matteo;PETRELLA, Antonio;SANTORO, Valentina;
2008

Abstract

We present a measurement of the branching fractions for the Cabibbo-favored radiative decay D-0 ->(K)overbar(*0)gamma and the Cabibbo-suppressed radiative decay D-0 ->phi gamma. These measurements are based on a data sample corresponding to an integrated luminosity of 387.1 fb(-1) and recorded with the BABAR detector at the PEP-II e(+)e(-) asymmetric-energy collider operating at center-of-mass energies 10.58 and 10.54 GeV. We measure the branching fractions relative to the well-studied decay D-0 -> K-pi(+) and find B(D-0 ->(K)overbar(*0)gamma)/B(D-0 -> K-pi(+))=(8.43 +/- 0.51 +/- 0.70)x10(-3) and B(D-0 ->phi gamma)/B(D-0 -> K-pi(+))=(7.15 +/- 0.78 +/- 0.69)x10(-4), where the first error is statistical and the second is systematic. This is the first observation of the decay mode D-0 ->(K)overbar(*0)gamma.
2008
B., Aubert; M., Bona; Y., Karyotakis; J. P., Lees; V., Poireau; E., Prencipe; X., Prudent; V., Tisserand; J. G., Tico; E., Grauges; L., Lopez; A., Pal...espandi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/533214
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 18
social impact