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Title: Symmetry tests in polarized Z{sup 0} decays to b{anti b}g

Abstract

Angular asymmetries have been measured in polarized Z{sup 0} decays to b{anti b}g collected by the SLD experiment at the SLC. A high purity b{anti b}g event sample is selected utilizing lifetime information given by the SLD CCD pixel vertex detector and the stable micron-size SLC beams, and the b- and {anti b}-jets are identified using lifetime information and momentum-weighted track charge. The forward-backward asymmetry is observed in the b-jet polar angle distribution, and the parity-violation parameter is measured to test the Standard Model. Two angular correlations between the three-jet plane and the Z{sup 0} polarization are studied. The CP-even and T-odd angular asymmetry, and the CP-odd and T-odd angular asymmetry are sensitive to physics beyond the Standard Model. The authors measure the expectation values of these quantities to be consistent with zero and set limits on the correlations.

Authors:
 [1];  [2];  [3];
  1. Nagoya Univ. (Japan)
  2. Tohoku Univ., Sendai (Japan)
  3. Stanford Univ., CA (United States). Stanford Linear Accelerator Center [and others
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, Menlo Park, CA (United States); Boston Univ., MA (United States); California Univ., Santa Barbara, CA (United States); California Univ., Santa Cruz, CA (United States); Colorado State Univ., Fort Collins, CO (United States); Colorado Univ., Boulder, CO (United States); Illinois Univ., Urbana, IL (United States); Lawrence Berkeley Lab., CA (United States); Massachusetts Univ., Amherst, MA (United States); Tennessee Univ., Knoxville, TN (United States); Wisconsin Univ., Madison, WI (United States); Yale Univ., New Haven, CT (United States)
Sponsoring Org.:
USDOE Office of Energy Research, Washington, DC (United States); National Science Foundation, Washington, DC (United States); United Kingdom Particle Physics and Astronomy Research Council (United Kingdom); Istituto Nazionale di Fisica Nucleare, Rome (Italy); Japan-US Cooperative Research Project on High Energy Physics, Nagoya (Japan); Korea Science and Engineering Foundation (Korea, Republic of)
OSTI Identifier:
537339
Report Number(s):
SLAC-PUB-7570; CONF-970787-3
ON: DE97007969; CNN: Contract PHY-91-13428;PHY-89-21320;PHY-92-04239;PHY-95-10439;PHY-88-19316;PHY-92-03212; TRN: 97:019536
DOE Contract Number:  
AC03-76SF00515; FG02-91ER40676; FG03-91ER40618; FG03-92ER40689; FG03-93ER40788; FG02-91ER40672; FG02-91ER40677; AC03-76SF00098; FG02-92ER40715; FG02-91ER40627; FG02-95ER40896; FG02-92ER40704
Resource Type:
Conference
Resource Relation:
Conference: 18. international symposium on lepton photon interactions, Hamburg (Germany), 28 Jul - 1 Aug 1997; Other Information: PBD: Jun 1997
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; Z NEUTRAL BOSONS; HADRONIC PARTICLE DECAY; STANDARD MODEL; ASYMMETRY; PARTICLE DISCRIMINATION; P INVARIANCE; TESTING; B QUARKS; GLUONS; COUPLING

Citation Formats

Abe, K., Abe, K., Akagi, T., and SLD Collaboration. Symmetry tests in polarized Z{sup 0} decays to b{anti b}g. United States: N. p., 1997. Web.
Abe, K., Abe, K., Akagi, T., & SLD Collaboration. Symmetry tests in polarized Z{sup 0} decays to b{anti b}g. United States.
Abe, K., Abe, K., Akagi, T., and SLD Collaboration. Sun . "Symmetry tests in polarized Z{sup 0} decays to b{anti b}g". United States. https://www.osti.gov/servlets/purl/537339.
@article{osti_537339,
title = {Symmetry tests in polarized Z{sup 0} decays to b{anti b}g},
author = {Abe, K. and Abe, K. and Akagi, T. and SLD Collaboration},
abstractNote = {Angular asymmetries have been measured in polarized Z{sup 0} decays to b{anti b}g collected by the SLD experiment at the SLC. A high purity b{anti b}g event sample is selected utilizing lifetime information given by the SLD CCD pixel vertex detector and the stable micron-size SLC beams, and the b- and {anti b}-jets are identified using lifetime information and momentum-weighted track charge. The forward-backward asymmetry is observed in the b-jet polar angle distribution, and the parity-violation parameter is measured to test the Standard Model. Two angular correlations between the three-jet plane and the Z{sup 0} polarization are studied. The CP-even and T-odd angular asymmetry, and the CP-odd and T-odd angular asymmetry are sensitive to physics beyond the Standard Model. The authors measure the expectation values of these quantities to be consistent with zero and set limits on the correlations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {6}
}

Conference:
Other availability
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