Form-factor ratio measurement in Lambda(c)+ ---> Lambda e+ electron-neutrino - INSPIRE

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Form-factor ratio measurement in Lambda(c)+ ---> Lambda e+ electron-neutrino

CLEO

Collaboration

Jan, 1995

9 pages

Published in:

Phys.Rev.Lett. 75 (1995) 624-628

DOI:

10.1103/PhysRevLett.75.624

PDG:

\alpha

{{\mathit \Lambda}_{{{c}}}^{+}}

\rightarrow

{{\mathit \Lambda}}{{\mathit \ell}^{+}}{{\mathit \nu}_{{{{{\mathit \ell}}}}}}

Report number:

CLNS-94-1306,
CLEO-94-24

Experiments:

CESR-CLEO

View in:

OSTI Information Bridge Server

reference search44 citations

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Abstract: (APS)

The angular distributions of the decay Λc+→Λe+νe have been studied using the CLEO II detector. By performing a three-dimensional maximum likelihood fit, the form factor ratio R=f2/f1 is determined to be −0.25±0.14±0.08. The decay asymmetry parameter of the Λc averaged over q2 is calculated to be αΛc=−0.82−0.06−0.03+0.09+0.06.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
angular distribution
decay: asymmetry
asymmetry: decay
form factor: ratio
ratio: form factor
dependence: momentum transfer

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Figures(0)

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