Measurement of the B sup 0 -meson lifetime

We report a measurement of the lifetime of the {ital B}{sup 0} meson based upon 29-GeV {ital e}{sup +}{ital e}{sup {minus}} annihilation data taken with the Mark II detector at the SLAC storage ring PEP. The {ital B}{sup 0} mesons are tagged by their decays into {ital D}{sup *{minus}}{ital e}{sup +}...

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Veröffentlicht in:	Physical review letters 1990-03, Vol.64:10
Hauptverfasser:	Wagner, S.R., Hinshaw, D.A., Ong, R.A., Snyder, A., Abrams, G., Adolphsen, C.E., Akerlof, C., Alexander, J.P., Alvarez, M., Amidei, D., Baden, A.R., Ballam, J., Barish, B.C., Barklow, T., Barnett, B.A., Bartelt, J., Blockus, D., Bonvicini, G., Boyarski, A., Boyer, J., Brabson, B., Breakstone, A., Brom, J.M., Bulos, F., Burchat, P.R., Burke, D.L., Butler, F., Calvino, F., Cence, R.J., Chapman, J., Cords, D., Coupal, D.P., DeStaebler, H.C., Dorfan, D.E., Dorfan, J.M., Drell, P.S., Feldman, G.J., Fernandez, E., Field, R.C., Ford, W.T., Fordham, C., Frey, R., Fujino, D., Gan, K.K., Gidal, G., Gladney, L., Glanzman, T., Gold, M.S., Goldhaber, G., Green, A., Grosse-Wiesmann, P., Haggerty, J., Hanson, G., Harr, R., Harris, F.A., Hawkes, C.M., Hayes, K., Herrup, D., Heusch, C.A., Himel, T., Hollebeek, R.J., Hutchinson, D., Hylen, J., Innes, W.R., Jaffre, M., Jaros, J.A., Juricic, I., Kadyk, J.A., Karlen, D., Kent, J., Klein, S.R., Koska, W., Kozanecki, W., Lankford, A.J., Larsen, R.R., LeClair
Format:	Artikel
Sprache:	eng
Schlagworte:	645102 > High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties 645103 > High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties ANNIHILATION B MESONS B NEUTRAL MESONS BASIC INTERACTIONS BOSONS CHARM PARTICLES CHARMED MESONS D -2010 MESONS DATA DATA ANALYSIS DECAY ELECTROMAGNETIC INTERACTIONS ELECTRON-POSITRON INTERACTIONS ELEMENTARY PARTICLES ENERGY RANGE EXPERIMENTAL DATA FERMIONS FIELD THEORIES GEV RANGE GEV RANGE 10-100 HADRONS INFORMATION INTERACTIONS KOBAYASHI-MASKAWA MATRIX LEPTON-LEPTON INTERACTIONS LEPTONS LIFETIME MATRICES MESONS MONTE CARLO METHOD NATIONAL ORGANIZATIONS NUMERICAL DATA PARTICLE INTERACTIONS PARTICLE KINEMATICS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALAR MESONS STANFORD LINEAR ACCELERATOR CENTER UNIFIED-FIELD THEORIES US DOE US ERDA US ORGANIZATIONS VECTOR MESONS 645101 > High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
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Beschreibung
Zusammenfassung:	We report a measurement of the lifetime of the {ital B}{sup 0} meson based upon 29-GeV {ital e}{sup +}{ital e}{sup {minus}} annihilation data taken with the Mark II detector at the SLAC storage ring PEP. The {ital B}{sup 0} mesons are tagged by their decays into {ital D}{sup {minus}}{ital e}{sup +}{nu} and {ital D}{sup {minus}}{mu}{sup +}{nu}, where the {ital D}{sup *{minus}} is tagged by its decay into {pi}{sup {minus}}{ital {bar D}}{sup 0}. We reconstruct the decay vertices of 15 {ital B}{sup 0}-meson candidates and measure the {ital B}{sup 0} lifetime to be 1.20{sup +0.52}{sub {minus}0.36}{sup +0.16}{sub 0.14} psec.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.64.1095