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

Authors

J. M. Link, University of California, DavisFollow
P. M. Yager, University of California, DavisFollow
J. C. Anjos, Centro Brasileiro de Pesquisas FísicasFollow
I. Bediaga, Centro Brasileiro de Pesquisas FísicasFollow
C. Göbel, Centro Brasileiro de Pesquisas FísicasFollow
A. A. Machado, Centro Brasileiro de Pesquisas FísicasFollow
J. Magnin, Centro Brasileiro de Pesquisas FísicasFollow
A. Massafferri, Centro Brasileiro de Pesquisas FísicasFollow
Abaz Kryemadhi, Messiah UniversityFollow
I. M. Pepe, Centro Brasileiro de Pesquisas FísicasFollow

Document Type

Article

Publication Date

2-10-2005

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. © 2004 Elsevier B.V. All rights reserved.

Recommended Citation

Link, J. M.; Yager, P. M.; Anjos, J. C.; Bediaga, I.; Göbel, C.; Machado, A. A.; Magnin, J.; Massafferri, A.; Kryemadhi, Abaz; and Pepe, I. M., "Measurements of the q² dependence of the D⁰ → K^-μ⁺ν and D⁰ → π ^-μ⁺ν form factors" (2005). Educator Scholarship & Departmental Newsletters. 204.
https://mosaic.messiah.edu/mps_ed/204