Using a sample of 232x10(6) Upsilon(4S)-> B (B) over bar events collected with the BABAR detector at the PEP-II B Factory in 1999-2004, we study B--> (DK*)-K-0(892)(-) decays where K*--> K(S)(0)pi(-) and D-0-> K(-)pi(+), K(-)pi(+)pi(0), K(-)pi(+)pi(+)pi(-) (non-CP final states); K+K-, pi(+)pi(-) (CP+ eigenstates); K(S)(0)pi(0), K(S)(0)phi, and K(S)(0)omega (CP- eigenstates). We measure four observables that are sensitive to the angle gamma of the CKM unitarity triangle; the partial-rate charge asymmetries A(CP +/-) and the ratios of the B-decay branching fraction in CP +/- and non-CP decays RCP +/-: A(CP+)=-0.08 +/- 0.19(stat)+/- 0.08(syst), A(CP-)=-0.26 +/- 0.40(stat)+/- 0.12(syst), RCP+=1.96 +/- 0.40(stat)+/- 0.11(syst), and RCP-=0.65 +/- 0.26(stat)+/- 0.08(syst).

Measurement of CP observables for the decays B-+/-->(DCPK)-K-0*(+/-) / B. Aubert, R. Barate, D. Boutigny, F. Couderc, Y. Karyotakis, J.P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, A. Palano, M. Pappagallo, A. Pompili, J.C. Chen, N.D. Qi, G. Rong, P. Wang, Y.S. Zhu, G. Eigen, I. Ofte, B. Stugu, G.S. Abrams, M. Battaglia, A.B. Breon, D.N. Brown, J. Button Shafer, R.N. Cahn, E. Charles, C.T. Day, M.S. Gill, A.V. Gritsan, Y. Groysman, R.G. Jacobsen, R.W. Kadel, J. Kadyk, L.T. Kerth, Y.G. Kolomensky, G. Kukartsev, G. Lynch, L.M. Mir, P.J. Oddone, T.J. Orimoto, M. Pripstein, N.A. Roe, M.T. Ronan, W.A. Wenzel, M. Barrett, K.E. Ford, T.J. Harrison, A.J. Hart, C.M. Hawkes, S.E. Morgan, A.T. Watson, M. Fritsch, K. Goetzen, T. Held, H. Koch, B. Lewandowski, M. Pelizaeus, K. Peters, T. Schroeder, M. Steinke, J.T. Boyd, J.P. Burke, N. Chevalier, W.N. Cottingham, T. Cuhadar Donszelmann, B.G. Fulsom, C. Hearty, N.S. Knecht, T.S. Mattison, J.A. Mckenna, A. Khan, P. Kyberd, M. Saleem, L. 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Neal. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 72:7(2005), pp. 071103.1-071103.7. [10.1103/PhysRevD.72.071103]

Measurement of CP observables for the decays B-+/-->(DCPK)-K-0*(+/-)

A. Lazzaro;V. Lombardo;F. Palombo;N. Neri;
2005

Abstract

Using a sample of 232x10(6) Upsilon(4S)-> B (B) over bar events collected with the BABAR detector at the PEP-II B Factory in 1999-2004, we study B--> (DK*)-K-0(892)(-) decays where K*--> K(S)(0)pi(-) and D-0-> K(-)pi(+), K(-)pi(+)pi(0), K(-)pi(+)pi(+)pi(-) (non-CP final states); K+K-, pi(+)pi(-) (CP+ eigenstates); K(S)(0)pi(0), K(S)(0)phi, and K(S)(0)omega (CP- eigenstates). We measure four observables that are sensitive to the angle gamma of the CKM unitarity triangle; the partial-rate charge asymmetries A(CP +/-) and the ratios of the B-decay branching fraction in CP +/- and non-CP decays RCP +/-: A(CP+)=-0.08 +/- 0.19(stat)+/- 0.08(syst), A(CP-)=-0.26 +/- 0.40(stat)+/- 0.12(syst), RCP+=1.96 +/- 0.40(stat)+/- 0.11(syst), and RCP-=0.65 +/- 0.26(stat)+/- 0.08(syst).
violation; gamma
Settore FIS/01 - Fisica Sperimentale
2005
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/16637
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