Using a large sample of D0→K -μ+ν and D0→π -μ+ν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of the q2 dependence for the f+(q2) form factor. These measured f+(q 2) form factors are fit to common parameterizations such as the pole dominance form and compared to recent unquenched Lattice QCD calculations. We find mpole=1.93±0.05±0.03 GeV/c2 for D 0→K-μ+ν and mpole=1. 91-0.15+0.30±0.07 GeV/c2 for D 0→π-μ+ν and f- (K)(0)/f+(K)(0)=-1.7-1.4 +1.5±0.3.

Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2005). Measurements of the q2 dependence of the D0 → K-μ+ν and D0 → π -μ+ν form factors. PHYSICS LETTERS. SECTION B, 607(3-4), 233-242 [10.1016/j.physletb.2004.12.036].

Measurements of the q2 dependence of the D0 → K-μ+ν and D0 → π -μ+ν form factors

Gianini G.;
2005

Abstract

Using a large sample of D0→K -μ+ν and D0→π -μ+ν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of the q2 dependence for the f+(q2) form factor. These measured f+(q 2) form factors are fit to common parameterizations such as the pole dominance form and compared to recent unquenched Lattice QCD calculations. We find mpole=1.93±0.05±0.03 GeV/c2 for D 0→K-μ+ν and mpole=1. 91-0.15+0.30±0.07 GeV/c2 for D 0→π-μ+ν and f- (K)(0)/f+(K)(0)=-1.7-1.4 +1.5±0.3.
Articolo in rivista - Articolo scientifico
article; measurement; molecular dynamics; molecular interaction; molecular physics; nonphotochemical quenching; radioisotope decay
English
2005
607
3-4
233
242
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2005). Measurements of the q2 dependence of the D0 → K-μ+ν and D0 → π -μ+ν form factors. PHYSICS LETTERS. SECTION B, 607(3-4), 233-242 [10.1016/j.physletb.2004.12.036].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455483
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