An upper limit on the mass of the tau neutrino
1985; Elsevier BV; Volume: 163; Issue: 5-6 Linguagem: Inglês
10.1016/0370-2693(85)90305-3
ISSN1873-2445
AutoresH. Albrecht, U. Binder, G. Harder, A. Philipp, W. Schmidt‐Parzefall, H. Schröder, H.D. Schulz, R. Wurth, A. Drescher, B. Gräwe, U. Matthiesen, H. Scheck, J. Spengler, D. Wegener, K. R. Schubert, J. Stiewe, R. Waldi, S. Weseler, Nigel N. Brown, K. W. Edwards, W.R. Frisken, C. Fukunaga, D.J. Gilkinson, D. M. Gingrich, M. Goddard, P.C.H. Kim, R. Kutschke, D. B. MacFarlane, J. A. McKenna, K.W. McLean, A.W. Nilsson, R. S. Orr, P. Padley, P. M. Patel, J.D. Prentice, H. Seywerd, B.J. Stacey, T.-S. Yoon, J. C. Yun, R. Ammar, D. Coppage, R. Davis, S. G. Kanekal, N. Kwak, G. Kernel, M. Pleško, L. Jönsson, Y. Oku, A. Babaev, M. Danilov, A. Golutvin, V. Lubimov, V. Matveev, V. Nagovitsin, V. Ryltsov, A. Semenov, V. Shevchenko, V. Soloshenko, V. Sopov, I. Tichomirov, Yu. Zaitsev, R. Childers, C.W. Darden, H. Gennow,
Tópico(s)Dark Matter and Cosmic Phenomena
ResumoUsing the ARGUS detector at the e+e− storage ring DORIS II, we have measured the vτ energy spectrum in the decay π+π−π±vτ of τ leptons produced near s=10 GeV. From this energy spectrum, we derive an upper limit of m(vτ)<70MeVc2 at the 95% confidence level.
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