The average b-hadron lifetime has been measured using a high statistics sample of B --> J/psi) X decays recorded with the Collider Detector at Fermilab. The decay vertices of 5344 inclusive J/psi --> mu+mu-candidates have been reconstructed using information from a silicon vertex detector. The measured B lifetime, which is the average over all b hadrons produced in ppBAR collisions at square-root s = 1.8 TeV weighted by their branching ratios into J/psi, is 1.46 +/- 0.06(stat) +/- 0.06(syst) ps. RI Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

MEASUREMENT OF THE AVERAGE LIFETIME OF B-HADRONS PRODUCED IN P(P)OVER-BAR COLLISIONS AT ROOT-S = 1.8 TEV

PIACENTINO, Giovanni Maria;
1993

Abstract

The average b-hadron lifetime has been measured using a high statistics sample of B --> J/psi) X decays recorded with the Collider Detector at Fermilab. The decay vertices of 5344 inclusive J/psi --> mu+mu-candidates have been reconstructed using information from a silicon vertex detector. The measured B lifetime, which is the average over all b hadrons produced in ppBAR collisions at square-root s = 1.8 TeV weighted by their branching ratios into J/psi, is 1.46 +/- 0.06(stat) +/- 0.06(syst) ps. RI Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11695/3904
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