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Title: Direct Measurement of A[sub b] in Z[sup 0] Decays Using Charged Kaon Tagging

Abstract

We present a direct measurement of the parity-violating asymmetry A[sub b] in the Z[sup 0] to b[ovr b] coupling using a new technique to distinguish the b and [ovr b] quarks using charged kaons from B decays. The Z[sup 0] bosons are produced in e[sup +]e[sup [minus]] collisions at the SLC with longitudinally polarized electrons. b[ovr b] events are selected using a secondary vertex mass tag and A[sub b] is determined from the left-right forward-backward asymmetry. From the 1994[endash]1995 data sample, selected from 100thinsp000 hadronic Z[sup 0] decays, we obtain A[sub b]=0.855[plus minus]0.088[sub stat][plus minus] 0.102[sub syst] . [copyright] [ital 1999] [ital The American Physical Society]

Authors:
 [1];  [2];  [3]; ; ; ; ; ; ;  [4]; ; ; ;  [5]; ; ; ;  [6]; ; more »; ; ; ; ; ;  [7]; ;  [8]; ; ; ; ;  [9] « less
  1. (Adelphi University, Garden City, New York 11530 (United States))
  2. (Aomori University, Aomori, 030 (Japan))
  3. (INFN Sezione di Bologna, I-40126, Bologna (Italy))
  4. (Brunel University, Uxbridge, Middlesex, UB8 3PH (United Kingdom))
  5. (Boston University, Boston, Massachusetts 02215 (United States))
  6. (University of Cincinnati, Cincinnati, Ohio 45221 (United States))
  7. (University of Colorado, Boulder, Colorado 80309 (United States))
  8. (Columbia University, New York, New York 10533 (United States))
  9. (Colorado State University, Ft. Collins, Colorado 80523 (
Publication Date:
OSTI Identifier:
6033075
Alternate Identifier(s):
OSTI ID: 6033075
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 83:10; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B QUARKS; ELECTRON-POSITRON INTERACTIONS; FLAVOR MODEL; KAONS; KAONS MINUS; KAONS PLUS; PARITY; PARTICLE DECAY; Z NEUTRAL BOSONS; BEAUTY PARTICLES; BOSONS; COMPOSITE MODELS; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LEPTON-LEPTON INTERACTIONS; MATHEMATICAL MODELS; MESONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUARK MODEL; QUARKS; STRANGE MESONS; STRANGE PARTICLES 662380* -- Decays of Intermediate Bosons-- (1992-)

Citation Formats

Steiner, R., Yuta, H., Benvenuti, A.C., Allen, N.J., Cotton, R., Dervan, P.J., Hasan, A., McKemey, A.K., Ward, C., Watts, S.J., Coller, J.A., Hedges, S.J., Shank, J.T., Whitaker, J.S., D'Oliveira, A., Johnson, R.A., Meadows, B.T., Nussbaum, M., Danielson, M.N., Fahey, S., Fan, C., Goodman, E.R., Krishna, N.M., Nauenberg, U., Wagner, D.L., Williams, B., Rowson, P.C., Shaevitz, M.H., Dima, M., Harton, J.L., Smy, M.B., Staengle, H., and Wilson, R.J. Direct Measurement of A[sub b] in Z[sup 0] Decays Using Charged Kaon Tagging. United States: N. p., 1999. Web.
Steiner, R., Yuta, H., Benvenuti, A.C., Allen, N.J., Cotton, R., Dervan, P.J., Hasan, A., McKemey, A.K., Ward, C., Watts, S.J., Coller, J.A., Hedges, S.J., Shank, J.T., Whitaker, J.S., D'Oliveira, A., Johnson, R.A., Meadows, B.T., Nussbaum, M., Danielson, M.N., Fahey, S., Fan, C., Goodman, E.R., Krishna, N.M., Nauenberg, U., Wagner, D.L., Williams, B., Rowson, P.C., Shaevitz, M.H., Dima, M., Harton, J.L., Smy, M.B., Staengle, H., & Wilson, R.J. Direct Measurement of A[sub b] in Z[sup 0] Decays Using Charged Kaon Tagging. United States.
Steiner, R., Yuta, H., Benvenuti, A.C., Allen, N.J., Cotton, R., Dervan, P.J., Hasan, A., McKemey, A.K., Ward, C., Watts, S.J., Coller, J.A., Hedges, S.J., Shank, J.T., Whitaker, J.S., D'Oliveira, A., Johnson, R.A., Meadows, B.T., Nussbaum, M., Danielson, M.N., Fahey, S., Fan, C., Goodman, E.R., Krishna, N.M., Nauenberg, U., Wagner, D.L., Williams, B., Rowson, P.C., Shaevitz, M.H., Dima, M., Harton, J.L., Smy, M.B., Staengle, H., and Wilson, R.J. Wed . "Direct Measurement of A[sub b] in Z[sup 0] Decays Using Charged Kaon Tagging". United States.
@article{osti_6033075,
title = {Direct Measurement of A[sub b] in Z[sup 0] Decays Using Charged Kaon Tagging},
author = {Steiner, R. and Yuta, H. and Benvenuti, A.C. and Allen, N.J. and Cotton, R. and Dervan, P.J. and Hasan, A. and McKemey, A.K. and Ward, C. and Watts, S.J. and Coller, J.A. and Hedges, S.J. and Shank, J.T. and Whitaker, J.S. and D'Oliveira, A. and Johnson, R.A. and Meadows, B.T. and Nussbaum, M. and Danielson, M.N. and Fahey, S. and Fan, C. and Goodman, E.R. and Krishna, N.M. and Nauenberg, U. and Wagner, D.L. and Williams, B. and Rowson, P.C. and Shaevitz, M.H. and Dima, M. and Harton, J.L. and Smy, M.B. and Staengle, H. and Wilson, R.J.},
abstractNote = {We present a direct measurement of the parity-violating asymmetry A[sub b] in the Z[sup 0] to b[ovr b] coupling using a new technique to distinguish the b and [ovr b] quarks using charged kaons from B decays. The Z[sup 0] bosons are produced in e[sup +]e[sup [minus]] collisions at the SLC with longitudinally polarized electrons. b[ovr b] events are selected using a secondary vertex mass tag and A[sub b] is determined from the left-right forward-backward asymmetry. From the 1994[endash]1995 data sample, selected from 100thinsp000 hadronic Z[sup 0] decays, we obtain A[sub b]=0.855[plus minus]0.088[sub stat][plus minus] 0.102[sub syst] . [copyright] [ital 1999] [ital The American Physical Society]},
doi = {},
journal = {Physical Review Letters},
issn = {0031-9007},
number = ,
volume = 83:10,
place = {United States},
year = {1999},
month = {9}
}