Download or read book Measurements of the Decays Tau Rho Nu sub Tau Tau Pi Nu sub Tau and Tau K 892 Nu sub Tau Using the MARK II Detector at SPEAR written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the branching fractions for the Cabibbo favored decays tau− .-->. rho− .-->. .pi.−.nu./sub tau/ and the Cabibbo suppressed decay mode tau− .-->. K*− (892).nu./sub tau/ are presented. The energy dependence of the tautau− production cross section is obtained for the decays tau− .-->. rho−.nu./sub tau/ and these spectra agree well with the classification of the tau− as a spin-1/2 point particle. Fits to the production cross section yield a measurement of M/sub tau/ = (1787 +- 10) MeV/c2 for the tau mass. Ninety-five percent confidence upper limits for the forbidden decay tau− .-->. K*−(1430).nu./sub tau/ and the tau neutrino mass are presented.

Download or read book The Decay Tau Rho Nu and Rho Pi Eta Nu written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Motivated by the question of missing exclusive branching fractions in tau decays, mostly suspected to be in one prong decays with neutrals, we have studied the decay tau .-->. rho nu in tau pair production by ee− annihilation at .sqrt.s = 3.77 GeV. The branching fraction is measured to be B(tau .-->. rho nu) = (23.0 +- 1.3 +- 1.7)% consistent with known measurements and not offering a solution to the branching ratio question. No eta signal in the .gamma gamma. mass spectrum pointing to a decay tau .-->. eta .pi. nu is obvious. An upper limit on this branching fraction is given.

Download or read book Measurements of the Decays Tau Rho Nu written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the branching fractions for the Cabibbo favored decays tau− .-->. rho− .-->. .pi.−.nu./sub tau/ and the Cabibbo suppressed decay mode tau− .-->. K*− (892).nu./sub tau/ are presented. The energy dependence of the tautau− production cross section is obtained for the decays tau− .-->. rho−.nu./sub tau/ and these spectra agree well with the classification of the tau− as a spin-1/2 point particle. Fits to the production cross section yield a measurement of M/sub tau/ = (1787 +- 10) MeV/c2 for the tau mass. Ninety-five percent confidence upper limits for the forbidden decay tau− .-->. K*−(1430).nu./sub tau/ and the tau neutrino mass are presented.

Download or read book Measurement of the Decays Tau Rho Nu written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the branching fractions for the Cabibbo-favored decay tau− .-->. rho−.nu./sub tau/ and the Cabibbo-suppressed decay tau− .-->. K*−(892).nu./sub tau/ are presented. The energy dependence of the tautau− production cross section is measured with the aid of the decay tau− .-->. rho−.nu./sub tau/, which yields a measurement M/sub tau/ = (1790 +- 40) MeV. A 2 sigma upper limit for the forbidden decay tau− .-->. K*−(1430).nu./sub tau/ is also presented. 3 figures.

Download or read book Measurement of the decay tau rho nu tau written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the decay t63 571 tau r63 571 n63 1tn t63 rho nu tau written by and published by . This book was released on 1992 with total page 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 1994 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the Decays tau K nut a u and tau rho nut a u written by ARGUS Collaboration and published by . This book was released on 1988 with total page 7 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 1991-10 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Physics is Fun Memoirs of a Life in Physics written by Richard Wilson and published by Richard Wilson. This book was released on 2011 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Measurement of the Michel Parameters rho and eta in Leptonic Tau Decays written by Mandeepa Chadha and published by . This book was released on 1997 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of the structure of decays tau decays in the reaction e e tau tau rho ny tau rho ny tau and a precision measurement of the neutrino tau neutrino helicity written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Particle Physics and the Universe written by Josip Trampetic and published by Springer Science & Business Media. This book was released on 2006-01-25 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Adriatic Meetings have traditionally been conferences on the most - vanced status of science. They are one of the very few conferences in physics aiming at a very broad participation of young and experienced researchers with di?erent backgrounds in particle physics. Particle physics has grown into a highly multi-faceted discipline over the sixty years of its existence, mainly because of two reasons: Particle physics as an experimental science is in need of large-scale laboratory set-ups, involving typically collaborations of several hundreds or even thousands of researchers and technicians with the most diverse expertise. This forces particle physics, being one of the most fundamental dis- plines of physics, to maintain a constant interchange and contact with other disciplines, notably solid-state physics and laser physics, cosmology and - trophysics, mathematical physics and mathematics. Since the expertise necessary in doing research in particle physics has become tremendously demanding in the last years, the ?eld tends to organize purely expert conferences, meetings and summer schools, such as for detector development, for astroparticle physics or for string theory. TheAdriaticMeetingthroughitsentirehistoryhasbeenaplaceforest- lishing exchange between theory and experiment. The 9th Adriatic Meeting successfully continued this tradition and even intensi?ed the cross-discipline communication by establishing new contacts between the community of c- mologists and of particle physicists. The exchange between theorists and - perimentalists was impressively intensive and will certainly have a lasting e?ect on several research projects of the European and world-wide physics community.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1995 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Decays of the Heavy Lepton Tau 1785 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The structure of the weak hadronic current coupled to the tau is investigated via some of the hadronic decays of the tau. The vector current coupling is determined by measuring the tau .-->. rho .nu./sub tau/ branching ratio. The axial-vector coupling is determined by measuring the tau .-->. .pi. .nu./sub tau/ branching ratio. The Cabibbo structure of the hadronic current is established by observing the decay tau .-->. K*(890).nu./sub tau/ and measuring its branching ratio. The branching ratios for the decays tau .-->. e anti .nu./sub e/.nu./sub tau/ and tau .-->. .mu. anti .nu./sub .mu./.nu./sub tau/ are measured as a normalization for the hadronic decays and as a check on the validity of the measurements. The leptonic branching ratios agree well with previous experiments. From a kinematic fit to the pion energy spectrum in the decay tau .-->. .pi. .nu./sub tau/, an upper limit (95% confidence level) of 245 MeV is placed on the tau neutrino mass. From a simultaneous fit of the center of mass energy dependence of the tau production cross section and the pion energy spectrum in the decay tau .-->. .pi. .nu./sub tau/, the tau mass is determined to be 1.787 +- 010 GeV/c. All properties of the tau measured here are consistent with it being a sequential lepton coupled to the ordinary weak hadronic current.

Download or read book Evidence for the tau approaches nu rho pi Decay Mode written by PLUTO Collaboration and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: