We report a measurement of the Lambda(0)(b) lifetime in the exclusive decay Lambda(0)(b)-> J/psi Lambda(0) in p (p) over bar collisions at root s=1.96 TeV using an integrated luminosity of 1.0 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. Using fully reconstructed decays, we measure tau(Lambda(0)(b))=(1.593 + (-0.078)(+0.083)(stat) +/- 0.033(syst)) ps. This is the single most precise measurement of tau(Lambda(0)(b)) and is 3.2 sigma higher than the current world average.

A., A., J., A., T., A., T., A., M. G., A., D., A., et al. (2007). Measurement of the Lambda(0)(b) lifetime in Lambda(0)(b)-> J/psi Lambda(0) in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW LETTERS, 98(12), 122001-1-122001-7 [10.1103/PhysRevLett.98.122001].

Measurement of the Lambda(0)(b) lifetime in Lambda(0)(b)-> J/psi Lambda(0) in p(p)over-bar collisions at root s=1.96 TeV

CIOCCI, MARIA AGNESE;
2007-01-01

Abstract

We report a measurement of the Lambda(0)(b) lifetime in the exclusive decay Lambda(0)(b)-> J/psi Lambda(0) in p (p) over bar collisions at root s=1.96 TeV using an integrated luminosity of 1.0 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. Using fully reconstructed decays, we measure tau(Lambda(0)(b))=(1.593 + (-0.078)(+0.083)(stat) +/- 0.033(syst)) ps. This is the single most precise measurement of tau(Lambda(0)(b)) and is 3.2 sigma higher than the current world average.
2007
A., A., J., A., T., A., T., A., M. G., A., D., A., et al. (2007). Measurement of the Lambda(0)(b) lifetime in Lambda(0)(b)-> J/psi Lambda(0) in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW LETTERS, 98(12), 122001-1-122001-7 [10.1103/PhysRevLett.98.122001].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/36995
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