An upper limit for the τ neutrino mass from τ → 5π(π0)ντ decays

6533b7d6fe1ef96bd1265c1c

RESEARCH PRODUCT

An upper limit for the τ neutrino mass from τ → 5π(π0)ντ decays

D Buskulic D Casper I De Bonis D Decamp P Ghez C Goy J.-p Lees M.-n Minard P Odier B Pietrzyk F Ariztizabal M Chmeissani J.m Crespo I Efthymiopoulos E Fernandez M Fernandez-bosman V Gaitan Ll Garrido M Martinez S Orteu A Pacheco C Padilla F Palla A Pascual J.a Perlas F Sanchez F Teubert D Creanza M De Palma A Farilla G Iaselli G Maggi N Marinelli S Natali S Nuzzo A Ranieri G Raso F Romano F Ruggieri G Selvaggi L Silvestris P Tempesta G Zito X Huang J Lin Q Ouyang T Wang Y Xie R Xu S Xue J Zhang L Zhang W Zhao G Bonvicini D Cassel M Cattaneo P Comas P Coyle H Drevermann A Engelhardt R.w Forty M Frank G Ganis M Girone R Hagelberg J Harvey R Jacobsen P Janot B Jost J Knobloch I Lehraus M Maggi C Markou E.b Martin P Mato H Meinhard A Minten R Miquel K Moffeit P Palazzi J.r Pater P Perrodo J.-f Pusztaszeri F Ranjard L Rolandi D Schlatter M Schmelling W Tejessy I.r Tomalin R Veenhof A Venturi H Wachsmuth W Wiedenmann T Wildish W Witzeling J Wotschack Z Ajaltouni M Bardadin-otwinowska A Barres C Boyer A Falvard P Gay C Guicheney P Henrard J Jousset B Michel S Monteil J-c Montret D Pallin P Perret F Podlyski J Proriol J.-m Rossignol F Saadi T Fearnley J.b Hansen J.d Hansen J.r Hansen P.h Hansen S.d Johnson B.s Nilsson A Kyriakis E Simopoulou I Siotis A Vayaki K Zachariadou A Blondel G Bonneaud J.c Brient P Bourdon L Passalacqua A Rougé M Rumpf R Tanaka A Valassi M Verderi H Videau D.j Candlin M.i Parsons E Veitch E Focardi G Parrini M Corden M Delfino C Georgiopoulos D.e Jaffe A Antonelli G Bencivenni G Bologna F Bossi P Campana G Capon F Cerutti V Chiarella G Felici P Laurelli G Mannocchi F Murtas G.p Murtas M Pepe-altarelli S Salomone P Colrain I Ten Have I.g Knowles J.g Lynch W Maitland W.t Morton C Raine P Reeves J.m Scarr K Smith M.g Smith A.s Thompson S Thorn R.m Turnbull U Becker O Braun C Geweniger G Graefe P Hanke V Hepp E.e Kluge A Putzer B Rensch M Schmidt J Sommer H Stenzel K Tittel M Wunsch R Beuselinck D.m Binnie W Cameron D.j Colling P.j Dornan N Konstantinidis L Moneta A Moutoussi J Nash G San Martin J.k Sedgbeer A.m Stacey G Dissertori P Girtler E Kneringer D Kuhn G Rudolph C.k Bowdery T.j Brodbeck A.j Finch F Foster G Hughes D Jackson N.r Keemer M Nuttall A Patel T Sloan S.w Snow E.p Whelan A Galla A.m Greene K Kleinknecht J Raab B Renk H.-g Sander H Schmidt S.m Walther R Wanke B Wolf J.j Aubert A.m Bencheikh C Benchouk A Bonissent G Bujosa D Calvet J Carr C Diaconu F Etienne M Thulasidas D Nicod P Payre D Rousseau M Talby I Abt R Assmann C Bauer W Blum D Brown H Dietl F Dydak C Gotzhein A.w Halley K Jakobs H Kroha G Lütjens G Lutz W Männer H.-g Moser R Richter A Rosado-schlosser A.s Schwarz R Settles H Seywerd U Stierlin R.st Denis G Wolf R Alemany J Boucrot O Callot A Cordier F Courault M Davier L Duflot J.-f Grivaz Ph Heusse M Jacquet D.w Kim F Le Diberder J Lefrançois A.-m Lutz G Musolino I Nikolic H.j Park I.c Park M.-h Schune S Simion J.-j Veillet I Videau P Azzurri D Abbaneo G Bagliesi G Batignani S Bettarini U Bottigli C Bozzi G Calderini M Carpinelli M.a Ciocci V Ciulli R Dell'orso I Ferrante F Fidecaro L Foà F Forti A Giassi M.a Giorgi A Gregorio F Ligabue A Lusiani P.s Marrocchesi A Messineo G Rizzo G Sanguinetti A Sciabà P Spagnolo J Steinberger R Tenchini G Tonelli G Triggiani C Vannini P.g Verdini J Walsh A.p Betteridge G.a Blair L.m Bryant Y Gao M.g Green D.l Johnson T Medcalf Ll.m Mir J.a Strong V Berlin D.r Botterill R.w Clifft T.r Edgecock S Haywood M Edwards P Maley P.r Norton J.c Thompson B Bloch-devaux P Colas H Duarte S Emery W Kozanecki E Lançon M.c Lemaire E Locci B Marx P Perez J Rander J.-f Renardy A Rosowsky A Roussarie J.-p Schuller J Schwindling D Si Mohand A. Trabelsi B Vallage R.p Johnson A.m Litke G Taylor J Wear A Beddall C.n Booth R Boswell S Cartwright F Combley I Dawson A Koksal M Letho W.m Newton C Rankin L.f Thompson A Böhrer S Brandt G Cowan E Feigl C Grupen G Lutters J Minguet-rodriguez F Rivera P Saraiva U Schäfer L Smolik L Bosisio R Della Marina G Giannini B Gobbo L Pitis F Ragusa H Kim J Rothberg S Wasserbaech S.r Armstrong L Bellantoni P Elmer Z Feng D.p.s Ferguson Y.s Gao S González J Grahl J.l Harton O.j Hayes H Hu P.a Mcnamara J.m Nachtman W Orejudos Y.b Pan Y Saadi M Schmitt I.j Scott V Sharma J.d Turk A.m Walsh F.v Weber Sau Lan Wu X Wu J.m Yamartino M Zheng G Zobernig

subject

Nuclear physics Physics ALEPH Experiment Nuclear and High Energy Physics Particle physics Energy distribution Electron–positron annihilation Physics High Energy Physics::Experiment Invariant mass Limit (mathematics)Neutrino Bar (unit)

description

An upper limit for the tau-neutrino mass has been determined from the decay tau -> 5pi+- \nu_tau using data collected with the OPAL detector from 1991 to 1995 in e+e- collisions at \sqrt{s} ~ M_Z. A limit of 43.2 MeV at 95% CL is obtained using a two-dimensional method in the 5pi invariant mass and energy distribution from 22 selected events. Combining this result with OPAL's previously published measurement using tau+tau- -> 3h+- \bar{nu}_tau 3h-+ \nu_tau decays, a new combined limit of m_{nu_tau} < 27.6 MeV (95% CL) is obtained.

year	journal	country	edition	language
1995-04-01

10.1016/0370-2693(95)00248-j https://hdl.handle.net/11368/2563378