Download or read book First Observation of Tau 3 Pi Eta Tau neutrino and Tau F1 Pi Tau neutrino Decays written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have observed new channels for[tau] decays with an[eta] in the final state. We study 3-prong tau decays, using the[eta][yields][gamma][gamma] and[eta][yields] 3[pi][sup 0] decay modes and 1-prong decays with two[pi][sup 0]'s using the[eta][yields][gamma][gamma] channel. The measured branching fractions are[Beta]([tau][sup -][yields][pi][sup -][pi][sup -][pi][sup+][eta][nu][sub[tau]])= (3.4[sub -0.5][sup+0.6][+-] 0.6) x 10[sup -4] and[Beta]([tau][sup -][yields][pi][sup -]2[pi][sup 0][eta][nu][sub[tau]])= (1.4[+-] 0.6[+-] 0.3) x 10[sup -4]. We observe clear evidence for f[sub 1][yields][eta][pi][pi] substructure and measure[Beta]([tau][sup -][yields] f[sub 1][pi][sup -][nu][sub[tau]])= (5.8[sub -1.3][sup+1.4][+-] 1.8) x 10[sup -4]. We have also searched for[eta][prime](958) production and obtain 90% CL upper limits[Beta]([tau][sup -][yields][pi][sup -][eta][prime][nu][sub[tau]])

Download or read book First Observation of Lepton Tau Decays to Neutrino K and Eta written by Guoheng Wei and published by . This book was released on 1995 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observation of the Decay tau right Arrow pi neutrino written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Tau Neutrino Mass and the Michel Parameter in Tau Decay written by Steven Daniel Holzner and published by . This book was released on 1987 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observation of the Charged current Interactions of the Tau Neutrino written by Jason Murry Sielaff and published by . This book was released on 2002 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Upper Limit for the Tau neutrino Mass from Tau 5 Pi Ny Tau Decays written by and published by . This book was released on 1998 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Energy Physics Index written by and published by . This book was released on 1992 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of the Decay tau Minus Goes to Pi Minus Pi Zero Tau Neutrino Using the BABAR Detector written by Mitchell Thomas Naisbit and published by . This book was released on 2006 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of High Multiplicity 3 prong tau Decays at BaBar written by Mateusz Jerzy Lewczuk and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents measurements of the branching fractions for tau decays to 3-prong final states using a data set of 430 million tau lepton pairs, corresponding to an integrated luminosity of 468 fb-1, collected with the BaBar detector at the PEP-II asymmetric energy e+e- storage rings. The tau- -> (3pi)- eta nu_tau, tau^- ->pi- 2pi0 omega nu_tau and tau- -> f_1(1285) pi- nu_tau branching fractions are presented as well as a measurement of the non-resonant component of the tau- -> 3pi- 3pi0 nu_tau decay. In addition this work sets a new limit on the branching fraction of the isospin-forbidden, second-class current decay tau- -> pi- eta'(958) nu_tau.

Download or read book A TAU Neutrino Mass Upper Limit from the Four pion Decay of the TAU Lepton written by David Stanley Crowcroft and published by . This book was released on 1998 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Tau Neutrino Helicity and Energy Correlation in Di pseudoscalar Events written by Jun Masui and published by . This book was released on 1997 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of the Tau to Pi Pi Pi Pi0 Nu Tau And Tau to Pi Pi Pi Eta Nu Tau Decays Using the BaBar Detector written by and published by . This book was released on 2007 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of the Michel Parameters and the Tau Neutrino Helicity in Tau Decay written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the CLEO II detector at the e[sup+]e[sup -] storage ring CESR, we have determined the Michel parameters[rho], [zeta], and[delta] in[tau][sup[-+]][nu][bar[nu]] decay as well as the[tau] neutrino helicity parameter H[sub[nu][sub[tau]]] in[tau][sup[-+]][pi][sup 0][nu] decay. From a data sample of 3.02 x 10[sup 6][tau] pairs produced at[radical]s= 10.6 GeV, using events of the topology e[sup+]e[sup -][yields][tau][sup+][tau][sup -][yields] (l[sup[+-]][nu][bar[nu]])([pi][sup[-+]][pi][sup 0][nu]) and e[sup+]e[sup -][yields][tau][sup+][tau][sup -][yields] ([pi][sup[+-]][pi][sup 0][bar[nu]])([pi][sup[-+]][pi][sup 0][nu]), and the determined sign of h[sub[nu][sub[tau]]][1,2], the combined result of the three samples is:[rho]= 0.747[+-] 0.010[+-] 0.006, [zeta]= 1.007[+-] 0.040[+-] 0.015, [zeta][delta]= 0.745[+-]0.026[+-]0.009, and h[sub[nu][sub[tau]]]= -0.995[+-] 0.010[+-] 0.003. The results are in agreement with the Standard Model V-A interaction.

Download or read book Study of the Decay tau 3 pi eta gamma ny tau with the DELPHI Detector at LEP written by Paolo Privitera and published by . This book was released on 1993 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A First Measurement of the Interaction Cross section of the Tau Neutrino written by and published by . This book was released on 2007 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The DONuT experiment collected data in 1997 and published first results in 2000 based on four observed [nu]{sub {tau}} charged-current (CC) interactions. The final analysis of the data collected in the experiment is presented in this paper, based on 3.6 x 1017 protons on target using the 800 GeV Tevatron beam at Fermilab. The number of observed [nu]{sub {tau}} CC interactions is 9, from a total of 578 observed neutrino interactions. We calculated the energy-independent part of the tau-neutrino CC cross section ([nu] + {bar [nu]}), relative to the well-known [nu]{sub e} and [nu]{sub {mu}} cross sections. The ratio [sigma]([nu]{sub {tau}})/[sigma]([nu]{sub e, {mu}}) was found to be 1.37 ± 0.35 ± 0.77. The {nu}{sub {tau}} CC cross section was found to be 0.72 ± 0.24 ± 0.36 x 10−38 cm2 GeV−1. Both results are in agreement with expectations from the Standard Model.

Download or read book Limit on Tau Neutrino Mass written by S. Abachi and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: