Measurement of topological muonic branching ratios of charmed hadrons produced in neutrino-induced charged-current interactions
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Measurement of topological muonic branching ratios of charmed hadrons produced in neutrino-induced charged-current interactions

A. Kayis-Topaksu,G. Önengüt,R. van Dantzig,M. de Jong,Rudolf Oldeman,M. Güler,U. Köse,P. Tolun,M.G. Catanesi,M.T. Muciaccia,K. Winter,B. Van de Vyver,P. Vilain,G. Wilquet,B. Saitta,E. Di Capua,S. Ogawa,H. Shibuya,I.R. Hristova,T. Kawamura,D. Kolev,H. Meinhard,J. Panman,A. Rozanov,Roumen Tsenov,J.W.E. Uiterwijk,P. Zucchelli,J. Goldberg,M. Chikawa,J.S. Song,C.S. Yoon,K. Kodama,N. Ushida,S. Aoki,T. Hara,T. Delbar,D. Favart,G. Grégoire,S. Kalinin,I. Makhlioueva,A. Artamonov,P. Gorbunov,V. Khovansky,V. Shamanov,I. Tsukerman,N. Bruski,D. Frekers,K. Hoshino,J. Kawada,M. Komatsu,M. Miyanishi,M. Nakamura,T. Nakano,K. Narita,K. Niu,K. Niwa,N. Nonaka,O. Sato,T. Toshito,S. Buontempo,Alfredo Giuseppe Cocco,Nicola D'Ambrosio,G. De Lellis,G. De Rosa,Giuliana Fiorillo,A. Marotta,Marcello Messina,Pasquale Migliozzi,L. Scotto Lavina,P. Strolin,V. Tioukov,T. Okusawa,U. Dore,P.F. Loverre,Lucio Ludovici,R. Santacesaria,A. Satta,F.R. Spada,E. Barbuto,C. Bozza,Giuseppe Grella,G. Romano,C. Sirignano,S. Sorrentino,Y. Sato,I. Tezuka;A. Kayis-Topaksu;G. Önengüt;R. van Dantzig;M. de Jong;Rudolf Oldeman;M. Güler;U. Köse;P. Tolun;M.G. Catanesi;M.T. Muciaccia;K. Winter;B. Van de Vyver;P. Vilain;G. Wilquet;B. Saitta;E. Di Capua;S. Ogawa;H. Shibuya;I.R. Hristova;T. Kawamura;D. Kolev;H. Meinhard;J. Panman;A. Rozanov;Roumen Tsenov;J.W.E. Uiterwijk;P. Zucchelli;J. Goldberg;M. Chikawa;J.S. Song;C.S. Yoon;K. Kodama;N. Ushida;S. Aoki;T. Hara;T. Delbar;D. Favart;G. Grégoire;S. Kalinin;I. Makhlioueva;A. Artamonov;P. Gorbunov;V. Khovansky;V. Shamanov;I. Tsukerman;N. Bruski;D. Frekers;K. Hoshino;J. Kawada;M. Komatsu;M. Miyanishi;M. Nakamura;T. Nakano;K. Narita;K. Niu;K. Niwa;N. Nonaka;O. Sato;T. Toshito;S. Buontempo;Alfredo Giuseppe Cocco;Nicola D'Ambrosio;G. De Lellis;G. De Rosa;Giuliana Fiorillo;A. Marotta;Marcello Messina;Pasquale Migliozzi;L. Scotto Lavina;P. Strolin;V. Tioukov;T. Okusawa;U. Dore;P.F. Loverre;Lucio Ludovici;R. Santacesaria;A. Satta;F.R. Spada;E. Barbuto;C. Bozza;Giuseppe Grella;G. Romano;C. Sirignano;S. Sorrentino;Y. Sato;I. Tezuka;
physics letters b 2005 Vol. 626 pp. 24-34
188
tezuka2005physicsmeasurement

Abstract

From 1994 to 1997, the emulsion target of the CHORUS detector was exposed to the wideband neutrino beam of the CERN SPS. In total about 100 000 charged-current neutrino interactions were located in the nuclear emulsion target and fully reconstructed. From this sample of events based on the data acquired by new automatic scanning systems, 2013 charm-decay events were selected by a pattern recognition program. They were confirmed as decays through visual inspection. Based on these events, the effective branching ratio of charmed particles into muons was determined to be B¯μ=[7.3±0.8(stat)±0.2(syst)]×10−2. In addition, the muonic branching ratios are presented for dominating charm-decay topologies. Normalization of the muonic decays to charged-current interactions provides σμ−μ+/σcc=[3.16±0.34(stat)±0.09(syst)]×10−3. Selecting only events with visible energy greater than 30 GeV gives a value of B¯μ that is less affected by the charm production threshold and quasi-elastic Λc+ production. Combining this value with the current average of B¯μ×|Vcd|2 at the leading order yields the value of |Vcd|LO=0.236±0.016.

Keywords

emulsion branching vcd neutrino charged charm stat syst muonic

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DOI:
10.1016/j.physletb.2005.08.082
URL:
https://sciprofiles.com/publication/view/56c2d7f31...

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