The branching fraction Β(Β0→rho;-e+v)=(3.29±0.42±0.47±0.55)x10-4was measured using isospin constraints and extrapolating to all electron energies according to five different form-factor calculations. The errors are statistical, systematic, and theoretical. The value of |Vub| determined by the same form-factor calculations is |Vub|=(3/64±0.22±0.25-0.56 +0.39) X 10-3.

Aubert, B., Barate, R., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., et al. (2003). Measurement of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| with B → ρev decays. PHYSICAL REVIEW LETTERS, 90(18), 1-7 [10.1103/PhysRevLett.90.181801].

Measurement of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| with B → ρev decays

CARPINELLI, Massimo;
2003

Abstract

The branching fraction Β(Β0→rho;-e+v)=(3.29±0.42±0.47±0.55)x10-4was measured using isospin constraints and extrapolating to all electron energies according to five different form-factor calculations. The errors are statistical, systematic, and theoretical. The value of |Vub| determined by the same form-factor calculations is |Vub|=(3/64±0.22±0.25-0.56 +0.39) X 10-3.
Articolo in rivista - Articolo scientifico
Electron energy levels; Electrons; Extrapolation; Mixing; Numerical methods; Statistical mechanics; Branching fraction; Meson; Quark; High energy physics;
English
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B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., et al. (2003). Measurement of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| with B → ρev decays. PHYSICAL REVIEW LETTERS, 90(18), 1-7 [10.1103/PhysRevLett.90.181801].
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