We perform a measurement of the CP asymmetry in b -> s gamma decays using a sample of 383 x 10(6) B (B) over bar events collected by the BABAR detector at the SLAC PEP-II asymmetric B factory. We reconstruct 16 flavor-specific B decay modes containing a high-energy photon and a hadronic system X(s) containing an s quark. We measure the CP asymmetry to be -0.011 +/- 0.030(stat) +/- 0.014(syst) for a hadronic system mass between 0.6 and 2.8 GeV/c(2).

Measurement of the CP Asymmetry in b -> s gamma Using a Sum of Exclusive Final States / Aubert, B., Bona, M., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Tico, J.g., Grauges, E., Lopez, L., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Abrams, G.s., Battaglia, M., Brown, D.n., BUTTON SHAFER, J., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 101:17(2008). [10.1103/physrevlett.101.171804]

Measurement of the CP Asymmetry in b -> s gamma Using a Sum of Exclusive Final States

RAHATLOU, SHAHRAM;CAVOTO, Gianluca;DEL RE, Daniele;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2008

Abstract

We perform a measurement of the CP asymmetry in b -> s gamma decays using a sample of 383 x 10(6) B (B) over bar events collected by the BABAR detector at the SLAC PEP-II asymmetric B factory. We reconstruct 16 flavor-specific B decay modes containing a high-energy photon and a hadronic system X(s) containing an s quark. We measure the CP asymmetry to be -0.011 +/- 0.030(stat) +/- 0.014(syst) for a hadronic system mass between 0.6 and 2.8 GeV/c(2).
2008
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the CP Asymmetry in b -> s gamma Using a Sum of Exclusive Final States / Aubert, B., Bona, M., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Tico, J.g., Grauges, E., Lopez, L., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Abrams, G.s., Battaglia, M., Brown, D.n., BUTTON SHAFER, J., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 101:17(2008). [10.1103/physrevlett.101.171804]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS 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/11573/225609
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 10
social impact