Direct Measurement of the Neutral Weak Dipole Moments of the Tau Lepton

Download or read book Direct Measurement of the Neutral Weak Dipole Moments of the Tau Lepton written by and published by . This book was released on 1999 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present direct measurements of the neutral weak anomalous magnetic dipole moment, a{sub [tau]}{sup w}, and neutral weak electric dipole moment, d{sub [tau]}{sup w}, of the tau lepton. The dipole moments are measured by analyzing the decays of [tau] leptons produced in the annihilation of positrons and longitudinally polarized electrons on the Z boson resonance at the SLC. Using 6736 Z decays to {tau} {tau}− pairs elected from our 1993-1998 data sample we obtain Re(a{sub {tau}}{sup w}) = (0.26 ± 1.24) x 10−3, Im(a{sub {tau}}{sup w}) = ( -0.02 ± 0.66) x 10−3, Re(d{sub {tau}}{sup w}) = (0.18 ± 0.67) x 10 −17 e · cm, and Im(D{sub {tau}}{sup w}) = ( -0.26 ± 0.37) x 10−17 e · cm.