Using a large sample of Ds+→φμ +ν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic form factor ratios: rv and r2. We find rv=1.549±0. 250±0.148 and r2=0.713±0.202±0.284. These values are consistent with rv and r2 form factors measured for the process D+→K̄*0ℓ +νℓ.

Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2004). New measurements of the Ds+ → φμ+ν form factor ratios. PHYSICS LETTERS. SECTION B, 586(3-4), 183-190 [10.1016/j.physletb.2004.02.015].

New measurements of the Ds+ → φμ+ν form factor ratios

Gianini G;
2004

Abstract

Using a large sample of Ds+→φμ +ν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic form factor ratios: rv and r2. We find rv=1.549±0. 250±0.148 and r2=0.713±0.202±0.284. These values are consistent with rv and r2 form factors measured for the process D+→K̄*0ℓ +νℓ.
Articolo in rivista - Articolo scientifico
article; calculation; experimental design; kinematics; lepton; measurement; Monte Carlo method
English
2004
586
3-4
183
190
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2004). New measurements of the Ds+ → φμ+ν form factor ratios. PHYSICS LETTERS. SECTION B, 586(3-4), 183-190 [10.1016/j.physletb.2004.02.015].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455600
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