B-lifetime measurements at the tevatron (original) (raw)

During the run period from May 1992 to the beginning of June 1993 the Collider Detector at Fermilab (CDF) has recorded approx.= 21.4 pb(exp -1) of p(anti p) collider data at (radical)s = 1.8 TeV. For this run the detector had been upgraded which significantly enhanced its b-physics capabilities. The upgrades include a high precision Silicon VerteX detector (SVX) which enables CDF to reconstruct the decay vertex and decay length of b-hadrons. In this article the author reports on several measurements of the lifetime of b-flavored hadrons. The determination of the average b-lifetime using inclusive J/(psi)'s, the measurement of the B(+/-) and B(0) lifetimes by reconstructing exclusive final states including a J/(psi) or (psi)(2S) and a measurement of the B(sub s)(exp 0) meson lifetime exploiting the decay: B(sub s) (yields) l(nu)D(sub s)(+) (yields) l(nu)(phi)(pi)(+) (yields) l(nu)K(+)K(-)(pi)(+).

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