Search for weak dipole moments of the [Tau] Lepton with the ALEPH detector[
Author | : María del Pilar Casado Lechuga |
Publisher | : |
Total Pages | : 109 |
Release | : 2001 |
Genre | : |
ISBN | : 9788469976869 |
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Author | : María del Pilar Casado Lechuga |
Publisher | : |
Total Pages | : 109 |
Release | : 2001 |
Genre | : |
ISBN | : 9788469976869 |
Author | : K K Gan |
Publisher | : World Scientific |
Total Pages | : 590 |
Release | : 1993-04-08 |
Genre | : |
ISBN | : 9814553433 |
The II International Workshop on Tau Lepton Physics was held in Ohio, USA in September 1992. Its purpose is to gather the experts on tau lepton physics to examine the current understanding of the tau lepton physics and to assess future prospects. A particular emphasis of the Workshop was a detailed examination of the '1-prong problem': the discrepancy between the inclusive measurement of one-charged-particle decay branching ratio and the sum of the exclusive decays. The Workshop also stimulated new ideas on tests of the Standard Model using the third generation lepton and assessed the future prospects of the lepton physics.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2001 |
Genre | : |
ISBN | : |
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][sup+][tau][sup[minus]] pairs elected from our 1993-1998 data sample we obtain Re(a[sub[tau]][sup w])= (0.26[+-] 1.24) x 10[sup[minus]3], Im(a[sub[tau]][sup w])= ([minus]0.02[+-] 0.66) x 10[sup[minus]3], Re(d[sub[tau]][sup w])= (0.18[+-] 0.67) x 10[sup[minus]17] e[center-dot] cm, and Im(D[sub[tau]][sup w])= ([minus]0.26[+-] 0.37) x 10[sup[minus]17] e[center-dot] cm.
Author | : Zygmunt Ajduk |
Publisher | : World Scientific |
Total Pages | : 1878 |
Release | : 1997-04-11 |
Genre | : |
ISBN | : 9814547107 |
The 28th conference from the Rochester series was the major high energy physics conference in 1996. Volume one contains short reports on new theoretical and experimental results. Volume two consists of the review talks presented in the plenary sessions.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2001 |
Genre | : |
ISBN | : |
Using a sample of 4,500 polarized Z decays to[tau] lepton pairs accumulated with the SLD detector at the SLAC Linear Collider (SLC) in 1993-95, a search has been made for anomalous couplings in the neutral current reaction e[sup+]e[sup[minus]][yields][tau][sup+][tau][sup[minus]]. A measurement of the CP violating Weak Electric Dipole Moment (WEDM) and the CP conserving Weak Magnetic Dipole Moment (WMDM) of the[tau] lepton has been performed by considering the transverse spin polarization of[tau] leptons produced at the Z pole. Using a maximum likelihood technique, the observed[tau] decay spectra in the e, [mu], [pi], and[rho] decay channels are used to infer the net transverse polarization of the underlying tau leptons, and a fit for the anomalous dipole moments is performed. No evidence for these dipole movements is observed, and limits are placed on both the real and imaginary parts of the WEDM and WMDM.