Observation of D - π production correlations in 500 GeV π− - N interactions

Clicks: 173
ID: 269670
1997
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Abstract
We study the charge correlations between charm mesons produced in 500 GeV π− - N interactions and the charged pions produced closest to them in phase space. With 110,000 fully reconstructed D mesons from experiment E791 at Fermilab, the correlations are studied as functions of the Dπ - D mass difference and of Feynman x. We observe significant correlations which appear to originate from a combination of sources including fragmentation dynamics, resonant decays, and charge of the beam.
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Authors E.M. Aitala,S. Amato,J.C. Anjos,J.A. Appel,D. Ashery,S. Banerjee,I. Bediaga,G. Blaylock,S.B. Bracker,P.R. Burchat,R.A. Burnstein,Tom Carter,H.S. Carvalho,N.K. Copty,I. Costa,L.M. Cremaldi,C. Darling,K. Denisenko,A. Fernandez,P. Gagnon,S. Gerzon,K. Gounder,A.M. Halling,G. Herrera,G. Hurvits,C. James,P.A. Kasper,S. Kwan,D.C. Langs,J. Leslie,B. Lundberg,S. MayTal-Beck,B.T. Meadows,Joao De Mello Neto,R.H. Milburn,J.M. de Miranda,A. Napier,A. Nguyen,A.B. D'Oliveira,K. O'Shaughnessy,K.C. Peng,L.P. Perera,M.V. Purohit,B. Quinn,S. Radeztsky,A. Rafatian,N.W. Reay,J.J. Reidy,A.C. dos Reis,H.A. Rubin,A.K.S. Santha,Alberto Santoro,A.J. Schwartz,M. Sheaff,R.A. Sidwell,A.J. Slaughter,M.D. Sokoloff,N.R. Stanton,K. Stenson,D.J. Summers,S. Takach,K. Thorne,A.K. Tripathi,S. Watanabe,R. Weiss-Babai,J. Wiener,N. Witchey,E. Wolin,D. Yi,S. Yoshida,R. Zaliznyak,C. Zhang;E.M. Aitala;S. Amato;J.C. Anjos;J.A. Appel;D. Ashery;S. Banerjee;I. Bediaga;G. Blaylock;S.B. Bracker;P.R. Burchat;R.A. Burnstein;Tom Carter;H.S. Carvalho;N.K. Copty;I. Costa;L.M. Cremaldi;C. Darling;K. Denisenko;A. Fernandez;P. Gagnon;S. Gerzon;K. Gounder;A.M. Halling;G. Herrera;G. Hurvits;C. James;P.A. Kasper;S. Kwan;D.C. Langs;J. Leslie;B. Lundberg;S. MayTal-Beck;B.T. Meadows;Joao De Mello Neto;R.H. Milburn;J.M. de Miranda;A. Napier;A. Nguyen;A.B. D'Oliveira;K. O'Shaughnessy;K.C. Peng;L.P. Perera;M.V. Purohit;B. Quinn;S. Radeztsky;A. Rafatian;N.W. Reay;J.J. Reidy;A.C. dos Reis;H.A. Rubin;A.K.S. Santha;Alberto Santoro;A.J. Schwartz;M. Sheaff;R.A. Sidwell;A.J. Slaughter;M.D. Sokoloff;N.R. Stanton;K. Stenson;D.J. Summers;S. Takach;K. Thorne;A.K. Tripathi;S. Watanabe;R. Weiss-Babai;J. Wiener;N. Witchey;E. Wolin;D. Yi;S. Yoshida;R. Zaliznyak;C. Zhang;
Journal physics letters b
Year 1997
DOI
10.1016/s0370-2693(97)00492-9
URL
https://sciprofiles.com/publication/view/1ff04582ef9711a5209442687d2b7ad6
Keywords
functions gev beam charm e791 reconstructed pions resonant feynman

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