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Title: An improved limit on jet handedness in Z{sup 0} decays

Conference ·
OSTI ID:274144

We present the results of an improved search for jet handedness in hadronic decays of Z{sup degree} bosons collected by the SLD experiment at SLAC. Quark and antiquark jets, expected to be oppositely polarized in Z{sup degree} decays, were separated using the large forward-backward quark asymmetry induced by the highly polarized SLC electron beam. The larger data sample and beam polarization of the 1994/5 SLC/SLD run yield a factor of two improvement in our sensitivity to jet handedness. Assuming Standard Model values of quark polarizations we set an improved upper limit on the analyzing power of the handedness method.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); United Kingdom Engineering and Physical Sciences Research Council (United Kingdom); Istituto Nazionale di Fisica Nucleare, Rome (Italy); Japan-US Cooperative Research Project on High Energy Physics, Nagoya (Japan)
DOE Contract Number:
AC03-76SF00515; FG02-91ER40676; FG03-92ER40701; FG03-91ER40618; FG03-92ER40689; FG03-93ER40788; FG02-91ER40672; FG02-91ER40677; AC03-76SF00098; FG02-92ER40715; AC02-76ER03069; FG06-85ER40224; FG05-91ER40627; AC02-76ER00881; FG02-92ER40704
OSTI ID:
274144
Report Number(s):
SLAC-PUB-6921; CONF-950705-49; ON: DE96013867; CNN: GRANT PHY-91-13428; GRANT PHY-89-21320; GRANT PHY-92-04239; GRANT PHY-88-17930; GRANT PHY-88-19316; GRANT PHY-92-03212; TRN: 96:020919
Resource Relation:
Conference: HEP 95: international Europhysics conference on high-energy physics, Brussels (Belgium), 27 Jul - 2 Aug 1995; Other Information: PBD: Jul 1995
Country of Publication:
United States
Language:
English