Measurement of $B$ hadron lifetimes using $J/\psi$ final states at CDF

Abe, F.

doi:10.1103/PhysRevD.57.5382

Measurement of $$B$$ hadron lifetimes using $$J/\psi$$ final states at CDF

Journal Article · Wed Oct 01 04:00:00 EDT 1997 · Phys.Rev.D

DOI:https://doi.org/10.1103/PhysRevD.57.5382· OSTI ID:1893425

Abe, F.

The average bottom-hadron and individual B+, B0, and Bs0 meson lifetimes have been determined using decays with a J/ψ→μ+μ– in the final state. The data sample consists of 110 pb–1 of $$\bar{p}p$$ collisions at s=1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992–1995. For the average lifetime of B hadrons decaying into J/ψ+X, we obtain $$\langle$$τb$$\rangle$$=1.533±0.015(stat)–0.031+0.035(syst)ps. For the B+ and B0 meson lifetimes, we determine τ(B+)=1.68±0.07(stat)±0.02(syst)ps, τ(B0)=1.58±0.09(stat)±0.02(syst)ps, and τ(B+)/τ(B0)=1.06±0.07(stat)±0.02(syst). For the Bs0 meson lifetime, we find τ(Bs0)=1.34–0.19+0.23(stat)±0.05(syst) ps.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: CDF

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1893425

Report Number(s):: FERMILAB-PUB-97-352-E; ANL-HEP-PR-98-105; oai:inspirehep.net:450282

Journal Information:: Phys.Rev.D, Journal Name: Phys.Rev.D Vol. 57

Country of Publication:: United States

Language:: English

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