An upper limit for Br(Z0 → ggg) from symmetric 3-jet Z0 hadronic decays

A Search for Jet Handedness in Hadronic Z 0 Decays

A Search for Jet Handedness in Hadronic 2° Decays

We have searched for signatures of pohization in hadronic jets from 2° + g~ decays using the ‘~et handedness’ method. The charge azymmetry induced by the high SLC dectron beam polarization was used to sdect quark or antiquarkjets, qected to be leftand right-pokized, respectively. We find no evidence for jet handednessin ow global sample nor in a sample of tight quwk jets. We set upper ~ts of 5....

A Search for Jet Handedness in Hadronic 2’ Decays

Transport of polarization through hadronization process is one of the fundamental interest in Quantum Chromodynamics which is a theory of strong interactions. In the low energy region where the hadronization occurs, QCD calculations are difficult, therefore at present the transport can be investigated experimentally. In this study we have searched for signatures of polarization of quarks and an...

Effective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays

In this research we work with the effective Hamiltonian and the quark model. We investigate the decay rates of matter-antimatter of quark. We describe the effective Hamiltonian theory and apply this theory to the calculation of current-current ( ), QCD penguin ( ), magnetic dipole ( ) and electroweak penguin ( ) decay rates. The gluonic penguin structure of hadronic decays is studied thro...

MEASUREMENTS OF SPIN-SENSITIVE QUANTITIES IN HADRONIC DECAYS OF Z0 BOSONS PRODUCED IN e+e− ANNIHILATIONS

In 1992 the SLD experiment at SLAC collected over 11,000 hadronic decay events of Z0 bosons produced in collisions of polarised electrons with unpolarised positrons delivered by the SLC. Preliminary experimental results are presented on tests of the value of the gluon spin involving events containing three hadronic jets measured in the final state. A leading order QCD prediction is found to be ...