Determination of the semi-leptonic branching fraction of charm hadrons produced in neutrino charged-current interactions
Clicks: 147
ID: 272900
2002
During the years 1994–1997, the emulsion target of the CHORUS detector was exposed to the CERN-SPS Wide Band Neutrino Beam. The improvements of the past few years in the automatic emulsion scanning systems allowed a sample of events located in emulsion to be used for studies of charm production. Based on a sample of 56172νμ charged-current interactions analysed so far, we find a value of Bμ=0.093±0.009(stat.)±0.009(syst.) for the semi-leptonic branching fraction of charm hadrons. The result for events with visible energy larger than 30 GeV, Bμ=0.102±0.016(stat.)±0.010(syst.), can be combined with the existing measurements of the dimuon rate to yield a value of 0.219±0.022 for the magnitude of the Cabibbo–Kobayashi–Maskawa matrix element |Vcd|.
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| Authors | A Kayis-Topaksu,G Onengüt,M De Jong,O Melzer,Rudolf Oldeman,E Pesen,F.R Spada,R Van Dantzig,J.L Visschers,M Güler,M Serin-Zeyrek,R Sever,P Tolun,N Armenise,M.G Catanesi,Marilisa De Serio,Michela Ieva,M.T Muciaccia,E Radicioni,Saverio Simone,A Bülte,K Winter,R El-Aidi,B Van De Vyver,P Vilain,G Wilquet,B Saitta,F. D. Capua,S Ogawa,H Shibuya,A Artamonov,M Chizhov,Mathieu Doucet,I.R Hristova,T Kawamura,D Kolev,H Meinhard,J Panman,I.M Papadopoulos,S Ricciardi,A Rozanov,Roumen Tsenov,J.W.E Uiterwijk,P Zucchelli,J Goldberg,M Chikawa,E Arik,J.S Song,C.S Yoon,K Kodama,N Ushida,S Aoki,T Hara,T Delbar,D Favart,G Grégoire,S Kalinin,I Maklioueva,P Gorbunov,V Khovansky,V Shamanov,I Tsukerman,N Bruski,D Frekers,K Hoshino,M Komatsu,M Miyanishi,K. Nakamura,T Nakano,K Narita,K Niu,K Niwa,N Nonaka,O Sato,T Toshito,S. Buontempo,Alfredo Giuseppe Cocco,Nicola D'Ambrosio,Giovanni De Lellis,Gianfranca De Rosa,A. Ereditato,Giuliana Fiorillo,Marcello Messina,Pasquale Migliozzi,Ciro Pistillo,L Scotto Lavina,P. Strolin,Valeri Tioukov,T. Okusawa,U. Dore,P. F. Loverre,Lucio Ludovici,P. Righini,R. Santacesaria,A. Satta,E. Barbuto,C Bozza,Giuseppe Grella,G. Romano,C. Sirignano,S. Sorrentino,Y. Sato,I. Tezuka;A Kayis-Topaksu;G Onengüt;M De Jong;O Melzer;Rudolf Oldeman;E Pesen;F.R Spada;R Van Dantzig;J.L Visschers;M Güler;M Serin-Zeyrek;R Sever;P Tolun;N Armenise;M.G Catanesi;Marilisa De Serio;Michela Ieva;M.T Muciaccia;E Radicioni;Saverio Simone;A Bülte;K Winter;R El-Aidi;B Van De Vyver;P Vilain;G Wilquet;B Saitta;F. D. Capua;S Ogawa;H Shibuya;A Artamonov;M Chizhov;Mathieu Doucet;I.R Hristova;T Kawamura;D Kolev;H Meinhard;J Panman;I.M Papadopoulos;S Ricciardi;A Rozanov;Roumen Tsenov;J.W.E Uiterwijk;P Zucchelli;J Goldberg;M Chikawa;E Arik;J.S Song;C.S Yoon;K Kodama;N Ushida;S Aoki;T Hara;T Delbar;D Favart;G Grégoire;S Kalinin;I Maklioueva;P Gorbunov;V Khovansky;V Shamanov;I Tsukerman;N Bruski;D Frekers;K Hoshino;M Komatsu;M Miyanishi;K. Nakamura;T Nakano;K Narita;K Niu;K Niwa;N Nonaka;O Sato;T Toshito;S. Buontempo;Alfredo Giuseppe Cocco;Nicola D'Ambrosio;Giovanni De Lellis;Gianfranca De Rosa;A. Ereditato;Giuliana Fiorillo;Marcello Messina;Pasquale Migliozzi;Ciro Pistillo;L Scotto Lavina;P. Strolin;Valeri Tioukov;T. Okusawa;U. Dore;P. F. Loverre;Lucio Ludovici;P. Righini;R. Santacesaria;A. Satta;E. Barbuto;C Bozza;Giuseppe Grella;G. Romano;C. Sirignano;S. Sorrentino;Y. Sato;I. Tezuka; |
| Journal | physics letters b |
| Year | 2002 |
| DOI | 10.1016/s0370-2693(02)02865-4 |
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