Neutrino production of opposite sign dimuons in the NOMAD experiment

P Astier,D Autiero,A Baldisseri,M Baldoceolin,G Ballocchi,M Banner,G Bassompierre,K Benslama,N Besson,I G Bird,B Blumenfeld,F Bobisut,J Bouchez,S Boyd,A Bueno,S A Bunyatov,L Camilleri,A Cardini,P W Cattaneo,V Cavasinni,A Cerveravillanueva,G Collazuol,G Conforto,C Conta,M Contalbrigo,R Cousins,D Daniels,H Degaudenzi,A De Santo,T Del Prete,T Dignan,L Di Lella,E Do Couto E Silva,J Dumarchez,M Ellis,T Fazio,G J Feldman,R Ferrari,D Ferrere,V Flaminio,M Fraternali,J M Gaillard,E Gangler,A Geiser,D Geppert,D Gibin,S Gninenko,A Godley,J J Gomezcadenas,J Gosset,C Gossling,M Gouanre, Aaron K Grant,G Graziani,A Guglielmi,C Hagner,J A Hernando,D Hubbard,P Hurst,N Hyett,E Iacopini,C Joseph,F Juget,M Kirsanov,O Klimov,J Kokkonen,A Kovzelev,A Krasnoperov,V E Kuznetsov,S Lacaprara,B Lakic,A Lanza,L La Rotonda,M Laveder,A Letessierselvon,J M Levy,L Linssen,A Ljubicic,Jonathan Long,A Lupi,E Manolapoggioli,A Marchionni,F Martelli,X Mechain,J P Mendiburu,J Meyer,M Mezzetto,S R Mishra,G F Moorhead,L Mossuz,P Nedelec,Y Nefedov,C Nguyenmau,D Orestano,F Pastore,L S Peak,E Pennacchio,H Pessard,R Petti,A Placci,A Pluquet,G Polesello,D Pollmann,A Polyarush,B Popov,C Poulsen,P Rathouit,Chiara Roda,A Rubbia,F Salvatore,K Schahmaneche,B Schmidt,Terri A Schmidt,M E Sevior,D Sillou,F J P Soler,G Sozzi,David F Steele,M Steininger,U Stiegler,M Stipcevic,Th Stolarczyk,M Tarebreyes,G N Taylor,S Tereshchenko,A Toropin,A M Touchard,S N Tovey,M T Tran,E Tsesmelis,J Ulrichs,L Vacavant,M Valdatanappi,V Valuev,Francois Vannucci,K E Varvell,M Veltri,V Vercesi,D Verkindt,J M Vieira,T Vinogradova,M K Vo,F V Weber,T Weisse,F F Wilson,L J Winton,B D Yabsley,H Zaccone,K Zuber,P Zuccon

PHYSICS LETTERS B（2000）

Cited 79|Views56

No score

Abstract

The NOMAD Collaboration presents a study of opposite sign dimuon events in the framework of Leading Order QCD. A total of 2714 neutrino- and 115 antineutrino-induced opposite sign dimuon events with E-mu 1, E-mu 2 > 4.5 GeV, 15 < E-nu < 300 GeV and Q(2) > 1 (GeV/c)(2) are observed in the Front-Calorimeter of NOMAD during the 1995 and 1996 runs. The analysis yields a value for the charm quark mass of m(c) = 1.3(-0.3-0.3)(+0.3+0.3) GeV/c(2) and fur the average semileptonic branching ratio of B-c = 0.095(-0.007-0.013)(+0.007+0.014). The ratio of the strange to non-strange sea in the nucleon is measured to be kappa = 0.48(-0.07-0.12)(+0.09+0.17). The measured rate of charm-induced dimuon relative to single muon, as a function of neutrino energy, is consistent with the slow rescaling hypothesis of heavy quark production. (C) 2000 Published by Elsevier Science B.V.

Translated text

Key words

particle physics

AI Read Science

Must-Reading Tree

Example

Generate MRT to find the research sequence of this paper

Chat Paper

Summary is being generated by the instructions you defined