We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the final state K(+/-)pi(-/+)pi(+/-). Using a sample of (383.2 +/- 4.2) x 10(6) B (B) over bar pairs collected by the BABAR detector, we measure CP-averaged branching fractions and direct CP asymmetries for intermediate resonant and nonresonant contributions. We find evidence for direct CP violation in the decay B(+/-) -> rho(0)(770)K(+/-), with a CP-violation parameter A(CP) = (+44 +/- 10 +/- 4(-13)(+5))%.

Evidence for direct CP violation from Dalitz-plot analysis of B(+/-)-> K(+/-)pi(-/+)pi(+/-)

PALANO, Antimo;PAPPAGALLO, MARCO IGNAZIO;
2008-01-01

Abstract

We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the final state K(+/-)pi(-/+)pi(+/-). Using a sample of (383.2 +/- 4.2) x 10(6) B (B) over bar pairs collected by the BABAR detector, we measure CP-averaged branching fractions and direct CP asymmetries for intermediate resonant and nonresonant contributions. We find evidence for direct CP violation in the decay B(+/-) -> rho(0)(770)K(+/-), with a CP-violation parameter A(CP) = (+44 +/- 10 +/- 4(-13)(+5))%.
File in 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/11586/59261
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 74
social impact