Measurement of the lifetime of the $$B^0_{s}$$ meson from $$D \bar{s} \ell^{+}$$ correlations

Conference · Mon Jul 01 04:00:00 EDT 1996

DOI:https://doi.org/10.2172/281955· OSTI ID:281955

Burkett, K. ^[1]; Paulini, M. ^[2]

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1. Argonne
2. LBL, Berkeley

The lifetime of the B{sub s}{sup 0} meson is measured using the semileptonic decay B{sub s}{sup 0} {r_arrow} D{sub s}{sup {minus}}l{sup {plus}}{nu}X. The data sample consists of approximately 110 pb{sup {minus}1} of p{ovr p} collisions at {radical}s = 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider. There are 254{plus_minus}21 D{sub s}{sup {minus}}l{sup {plus}} signal events where the D{sub s}{sup {plus}} is reconstructed through its decay mode D{sub s}{sup {minus}} {r_arrow} {phi}{pi}{sup {minus}}, {phi} {r_arrow} K{sup {plus}}K{sup {minus}}. Using these events, the B{sub s}{sup 0} meson lifetime is determined to be {tau}(B{sub s}{sup 0}) {equals} 1.37{sup {plus}0.14}{sub {minus}0.12}(stat.){plus_minus}0.04(syst.) ps. The B{sub s}{sup 0} meson proper decay length distribution has been examined for a lifetime difference between the two CP eigenstates of the B{sub s}{sup 0} meson, B{sub s}{sup H} and B{sub s}{sup L}. 12 refs., 3 figs., 1 tab.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (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: 281955
• Report Number(s): FERMILAB-CONF-96-154-E; CDF-PUB-BOTTOM-PUBLIC-3732; oai:inspirehep.net:420788
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B S MESONS
D S MESONS
EXPERIMENTAL DATA
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
LIFETIME
PROTON-ANTIPROTON INTERACTIONS
TEV RANGE 01-10