B
B. Espagnon
Researcher at Centre national de la recherche scientifique
Publications - 58
Citations - 1965
B. Espagnon is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Nucleon & Meson. The author has an hindex of 22, co-authored 58 publications receiving 1909 citations. Previous affiliations of B. Espagnon include Blaise Pascal University.
Papers
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Journal ArticleDOI
Evidence for deconfinement of quarks and gluons from the J/ψ suppression pattern measured in Pb-Pb collisions at the CERN-SPS
M.C. Abreu,Bruno Alessandro,C. Alexa,R. Arnaldi,M. Atayan,C. Baglin,A. Baldit,M. Bedjidian,S. Beolè,V. Boldea,P. Bordalo,A. Bussiere,L. Capelli,L. Casagrande,J. Castor,T. Chambon,B. Chaurand,I. Chevrot,B. Cheynis,E. Chiavassa,C. Cicalò,M. P. Comets,N. Constans,S. Constantinescu,João Cruz,A. De Falco,G. Dellacasa,N. De Marco,A. Devaux,S. Dita,O. Drapier,Laurent Ducroux,B. Espagnon,J. Fargeix,P. Force,M. Gallio,Yu.K. Gavrilov,C. Gerschel,Paolo Giubellino,M.B. Golubeva,M. Gonin,A.A. Grigorian,J.Y. Grossiord,F.F. Guber,A. Guichard,H. Gulkanyan,R. Hakobyan,R. Haroutunian,Marek Idzik,D. Jouan,T.L. Karavitcheva,L. Kluberg,A. B. Kurepin,Y. Le Bornec,C. Lourenço,M. Mac Cormick,P. Macciotta,A. Marzari-Chiesa,M. Masera,A. Masoni,S Mehrabyan,M. Monteno,S. Mourgues,A. Musso,P. Petiau,A. Piccotti,J.-R. Pizzi,F. Prino,G. Puddu,C. Quintans,L. Ramello,S. Ramos,P. Rato-Mendes,L. Riccati,A. Romana,I. Ropotar,P. Saturnini,Enrico Scomparin,S. Serci,R. Shahoyan,S. Silva,M. Sitta,C. Soave,P. Sonderegger,X. Tarrago,N.S. Topilskaya,G.L. Usai,E. Vercellin,L. Villatte,N. Willis +89 more
TL;DR: The analysis of the data collected by the NA50 experiment in 1998, reported in this paper, extends and clarifies the pattern of the previously observed J/ψ anomalous suppression.
Journal ArticleDOI
Study of the isospin symmetry breaking in the light quark sea of the nucleon from the Drell-Yan process
A. Baldit,C. Barriere,J. Castor,T. Chambon,A. Devaux,B. Espagnon,J. Fargeix,P. Force,G. Landaud,P. Saturnini,Francois Vazeille,P. Sonderegger,M.C. Abreu,P. Bordalo,R. Ferreira,Carlos Lourenco,S. Ramos,S. Silva,Joao Varela,C. Gerschel,D. Jouan,X. Tarrago,B. Chaurand,L. Kluberg,A. Romana,Ph. Gorodetzky,D. Lazic,Rachid Mazini,C. Racca,Bruno Alessandro,E. Chiavassa,G. Dellacasa,Mauro Gallio,Paolo Giubellino,P. Guaita,A. Marzari-Chiesa,Massimo Masera,Marco Monteno,A. Musso,L. Ramello,L. Riccati,Enrico Scomparin,Ermanno Vercellin,M. Bedjidian,Didier Contardo,E. Descroix,O. Drapier,J.-Y. Grossiord,A. Guichard,R. Haroutunian,Fairouz Malek,R. Mandry,J.-R. Pizzi +52 more
TL;DR: The ratio of cross-sections for muon pair production through the Drell-Yan process in p − p and p − d reactions has been measured at y ≈ 0, with 450 GeVc incident protons as mentioned in this paper.
Journal ArticleDOI
Anomalous J/psi suppression in Pb-Pb interactions at 158 GeV/c per nucleon
M.C. Abreu,Bruno Alessandro,Calin Alexa,J. Astruc,C. Baglin,A. Baldit,M. Bedjidian,F. Bellaiche,Stefania Beole,V. Boldea,G. Bonazzola,P. Bordalo,A. Borhani,A. Bussiere,V. Capony,J. Castor,T. Chambon,B. Chaurand,I. Chevrot,B. Cheynis,E. Chiavassa,Corrado Cicalo,Serban Constantinescu,João Cruz,Wladyslaw Dabrowski,A. De Falco,G. Dellacasa,N. De Marco,A. Devaux,Sanda Dita,O. Drapier,B. Espagnon,J. Fargeix,François Fleuret,P. Force,Mauro Gallio,L. Gatignon,Y.K. Gavrilov,C. Gerschel,Paolo Giubellino,M.B. Golubeva,M. Gonin,Ph. Gorodetzky,J.Y. Grossiord,P. Guaita,F.F. Guber,A. Guichard,R. Haroutunian,Marek Idzik,D. Jouan,T.L. Karavitcheva,L. Kluberg,A. B. Kurepin,G. Landaud,Y. Lebornec,Carlos Lourenco,L. Luquin,P. Macciotta,A. Marzari-Chiesa,Massimo Masera,A. Masoni,S. Mourgues,A. Musso,F. Ohlsson-Malek,P. Petiau,A. Piccotti,J.R. Pizzi,W.L. Prado da Silva,G. Puddu,C. Quintans,C. Racca,L. Ramello,S. Ramos,P. Rato-Mendes,L. Riccati,A. Romana,S. Sartori,P. Saturnini,Enrico Scomparin,Sergio Serci,S. Silva,C. Soave,P. Sonderegger,X. Tarrago,Petar Temnikov,N.S. Topilskaya,G. L. Usai,C. Vale,Ermanno Vercellin,N. Willis +89 more
TL;DR: In this paper, the Drell-Yan and J ψ cross-sections measured in PbPb collisions are compared with the values extrapolated from the results obtained in proton and light ion induced reactions.
Journal ArticleDOI
Observation of a threshold effect in the anomalous J/ψ suppression
M.C. Abreu,Bruno Alessandro,Calin Alexa,Roberta Arnaldi,J. Astruc,M. Atayan,C. Baglin,A. Baldit,M. Bedjidian,F. Bellaiche,Stefania Beole,V. Boldea,P. Bordalo,A. Bussiere,V. Capony,L. Casagrande,J. Castor,T. Chambon,B. Chaurand,I. Chevrot,Brigitte Cheynis,E. Chiavassa,Corrado Cicalo,M. P. Comets,N. Constans,Serban Constantinescu,João Cruz,A. De Falco,G. Dellacasa,N. De Marco,A. Devaux,Sanda Dita,O. Drapier,B. Espagnon,J. Fargeix,S. Filippov,François Fleuret,P. Force,Mauro Gallio,Lau Gatignon,Y.K. Gavrilov,C. Gerschel,Paolo Giubellino,M.B. Golubeva,M. Gonin,A.A. Grigorian,J.-Y. Grossiord,F.F. Guber,A. Guichard,H.R. Gulkanyan,R. Hakobyan,R. Haroutunian,Marek Idzik,D. Jouan,T.L. Karavitcheva,L. Kluberg,Alexey Kurepin,Y. Le Bornec,Carlos Lourenco,L. Luquin,M. Mac Cormick,P. Macciotta,A. Marzari-Chiesa,Massimo Masera,A. Masoni,S Mehrabyan,Marco Monteno,S. Mourgues,A. Musso,F. Ohlsson-Malek,P. Petiau,A. Piccotti,J.-R. Pizzi,W.L. Prado da Silva,F. Prino,G. Puddu,C. Quintans,C. Racca,Luciano Ramello,S. Ramos,P. Rato-Mendes,L. Riccati,A. Romana,I. Ropotar,P. Saturnini,Enrico Scomparin,Sergio Serci,Ruben Shahoyan,S. Silva,Mario Sitta,C. Soave,P. Sonderegger,X. Tarrago,Petar Temnikov,N.S. Topilskaya,G. L. Usai,Ermanno Vercellin,N. Willis +97 more
TL;DR: In this paper, a phase transition from ordinary nuclear matter to a state of deconfined quarks and gluons as predicted by lattice QCD calculations was found in central Pb-Pb collisions.
Journal ArticleDOI
J/psi and Drell-Yan cross-sections in Pb-Pb interactions at 158 GeV/c per nucleon
M.C. Abreu,Bruno Alessandro,Calin Alexa,J. Astruc,C. Baglin,A. Baldit,M. Bedjidian,F. Bellaiche,Stefania Beole,V. Boldea,G. Bonazzola,P. Bordalo,A. Borhani,A. Bussiere,V. Capony,J. Castor,T. Chambon,B. Chaurand,I. Chevrot,B. Cheynis,E. Chiavassa,Corrado Cicalo,Serban Constantinescu,João Cruz,Wladyslaw Dabrowski,A. De Falco,G. Dellacasa,N. De Marco,A. Devaux,Sanda Dita,O. Drapier,B. Espagnon,J. Fargiex,François Fleuret,P. Force,Mauro Gallio,L. Gatignon,Y.K. Gavrilov,C. Gerschel,Paolo Giubellino,M.B. Golubeva,M. Gonin,Ph. Gorodetzky,J.Y. Grossiord,P. Guaita,F.F. Guber,A. Guichard,R. Haroutunian,Marek Idzik,D. Jouan,T.L. Karavitcheva,L. Kluberg,A. B. Kurepin,G. Landaud,Y. Le Bornec,Carlos Lourenco,L. Luquin,P. Macciotta,A. Marzari-Chiesa,Massimo Masera,A. Masoni,S. Mourgues,A. Musso,F. Ohlsson-Malek,P. Petiau,A. Piccotti,J.R. Pizzi,W.L. Prado da Silva,G. Puddu,C. Quintans,C. Racca,L. Ramello,S. Ramos,P. Rato-Mendes,L. Riccati,A. Romana,S. Sartori,P. Saturnini,Enrico Scomparin,Sergio Serci,S. Silva,C. Soave,P. Sonderegger,X. Tarrago,Petar Temnikov,N.S. Topilskaya,G. L. Usai,C. Vale,Ermanno Vercellin,N. Willis +89 more
TL;DR: In this paper, the Drell-Yan cross-sections in Pb reactions at 158 GeV/c per nucleon were studied as a function of the impact parameter of the collision estimated from the measured transverse energy.