We report an indirect search for nonstandard model physics using the flavor-changing neutral current decays B -> K(*)mu(+)mu(-). We reconstruct the decays and measure their angular distributions, as a function of q(2) = M(mumu)(2)c(2), where M(mumu) is the dimuon mass, in p (p) over bar collisions at root s = 1.96 Tev using a data sample corresponding to an integrated luminosity of 6.8 fb(-1). The transverse polarization asymmetry A(T)((2)) and the time-reversal-odd charge-and-parity asymmetry A(im) are measured for the first time, together with the K* longitudinal polarization fraction F-L and the muon forward-backward asymmetry A(FB) for the decays B-0 -> K*(0)mu(+)mu(-) and B+ -> K*(+)mu(+)mu(-). The B -> K*mu(+)mu(-) forward-backward asymmetry in the most sensitive kinematic regime, 1 <= q(2) < 6 GeV(2)/c(2), is measured to be A(FB) 0.29(-0.23)(+0.20) (stat) +/- 0.07 (syst), the most precise result to date. No deviations from the standard model predictions are observed.

T., A., B. A., G., S., A., D., A., A., A., A., A., et al. (2012). Measurements of the Angular Distributions in the Decays B -> K(*)mu(+)mu(-) at CDF. PHYSICAL REVIEW LETTERS, 108(8) [10.1103/PhysRevLett.108.081807].

Measurements of the Angular Distributions in the Decays B -> K(*)mu(+)mu(-) at CDF

BARRIA, PATRIZIA;CAVALIERE, VIVIANA;GAROSI, PAOLA;RUFFINI, FABRIZIO;SCRIBANO, ANGELO;SQUILLACIOTI, PAOLA;TURINI, NICOLA;
2012-01-01

Abstract

We report an indirect search for nonstandard model physics using the flavor-changing neutral current decays B -> K(*)mu(+)mu(-). We reconstruct the decays and measure their angular distributions, as a function of q(2) = M(mumu)(2)c(2), where M(mumu) is the dimuon mass, in p (p) over bar collisions at root s = 1.96 Tev using a data sample corresponding to an integrated luminosity of 6.8 fb(-1). The transverse polarization asymmetry A(T)((2)) and the time-reversal-odd charge-and-parity asymmetry A(im) are measured for the first time, together with the K* longitudinal polarization fraction F-L and the muon forward-backward asymmetry A(FB) for the decays B-0 -> K*(0)mu(+)mu(-) and B+ -> K*(+)mu(+)mu(-). The B -> K*mu(+)mu(-) forward-backward asymmetry in the most sensitive kinematic regime, 1 <= q(2) < 6 GeV(2)/c(2), is measured to be A(FB) 0.29(-0.23)(+0.20) (stat) +/- 0.07 (syst), the most precise result to date. No deviations from the standard model predictions are observed.
2012
T., A., B. A., G., S., A., D., A., A., A., A., A., et al. (2012). Measurements of the Angular Distributions in the Decays B -> K(*)mu(+)mu(-) at CDF. PHYSICAL REVIEW LETTERS, 108(8) [10.1103/PhysRevLett.108.081807].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/36914
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