P
P. Sonderegger
Researcher at CERN
Publications - 10
Citations - 636
P. Sonderegger is an academic researcher from CERN. The author has contributed to research in topics: Nucleon & Deconfinement. The author has an hindex of 8, co-authored 10 publications receiving 610 citations. Previous affiliations of P. Sonderegger include Technical University of Lisbon.
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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
Transverse momentum distributions of J/ψ, ψ′, Drell–Yan and continuum dimuons produced in Pb–Pb interactions at the SPS
M.C. Abreu,Bruno Alessandro,C. Alexa,R. Arnaldi,M. Atayan,C. Baglin,A. Baldit,M. Bedjidian,F. Bellaiche,S. Beolè,V. Boldea,P. Bordalo,A. Bussiere,L. Capelli,V. Capony,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,Marco Monteno,S. Mourgues,A. Musso,F Ohlson-Malek,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,Mario Sitta,C. Soave,P. Sonderegger,X. Tarrago,N.S. Topilskaya,G.L. Usai,E. Vercellin,L. Villatte,N. Willis +92 more
TL;DR: In particular, the dependence of these distributions on the centrality of the Pb-Pb collision was investigated in detail in this article, where the transverse momentum distributions of the \jpsi, \psip\ and dimuons in the mass continuum were investigated.
Journal ArticleDOI
The dependence of the anomalous J/ψ suppression on the number of participant nucleons
M.C. Abreu,Bruno Alessandro,C. Alexa,R. Arnaldi,M. Atayan,C. Baglin,A. Baldit,M. Bedjidian,S. Beolè,V. Boldea,P. Bordalo,G. Borges,A. Bussiere,L. Capelli,J. Castor,C. Castanier,B. Chaurand,I. Chevrot,B. Cheynis,E. Chiavassa,C. Cicalò,T. Claudino,M. P. Comets,N. Constans,S. Constantinescu,Pietro Cortese,N. De Marco,A. De Falco,G. Dellacasa,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,S. 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,P. Macciotta,M. Mac Cormick,A. Marzari-Chiesa,M. Masera,A. Masoni,Marco Monteno,A. Musso,P. Petiau,A. Piccotti,J.-R. Pizzi,F. Prino,G. Puddu,C. Quintans,S. Ramos,L. Ramello,P. Rato Mendes,L. Riccati,A. Romana,H Santos,P. Saturnini,E Scalas,Enrico Scomparin,S. Serci,R. Shahoyan,F. Sigaudo,S. Silva,Mario Sitta,P. Sonderegger,X. Tarrago,N.S. Topilskaya,G.L. Usai,E. Vercellin,L. Villatte,N. Willis +90 more
TL;DR: In this article, a Glauber approach was used to determine the anomalous J/ ψ suppression pattern as a function of the forward hadronic energy measured in a zero degree calcimeter (ZDC).
Journal ArticleDOI
Charmonia and Drell-Yan production in proton-nucleus collisions at the CERN SPS
Bruno Alessandro,C. Alexa,R. Arnaldi,M. Atayan,C. Baglin,S. Beolè,V. Boldea,P. Bordalo,S. Borenstein,G. Borges,A. Bussiere,L Capelli,C Castanier,J. Castor,B. Chaurand,B. Cheynis,E. Chiavassa,C. Cicalò,T. Claudino,M. P. Comets,N. Constans,S. Constantinescu,Pietro Cortese,João Cruz,A. De Falco,N. De Marco,G. Dellacasa,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,S. Grigorian,J.Y. Grossiord,F.F. Guber,A. Guichard,H. Gulkanyan,R. Hakobyan,Marek Idzik,D. Jouan,T.L. Karavitcheva,L. Kluberg,A. B. Kurepin,Y. Le Bornec,C. Lourenço,P. Macciotta,M. Mac Cormick,A. Marzari-Chiesa,M. Masera,A. Masoni,Marco Monteno,A. Musso,P. Petiau,A. Piccotti,J.-R. Pizzi,W.L. Prado da Silva,F Prino,G. Puddu,C. Quintans,L. Ramello,S. Ramos,P. Rato Mendes,L. Riccati,A. Romana,Helena Santos,P. Saturnini,Enrico Scalas,Enrico Scomparin,S. Serci,R. Shahoyan,F. Sigaudo,Mario Sitta,P. Sonderegger,X. Tarrago,N.S. Topilskaya,G.L. Usai,E. Vercellin,L Villatte,N. Willis +87 more
TL;DR: In this paper, an experimental study of charmonia and Drell-Yan production in proton-nucleus collisions at 450 GeV/c is presented, where the results are analyzed in the framework of the Glauber model and lead to the values of the nuclear absorption cross-section σabspA for J/ψ and ψ′.
Journal ArticleDOI
Scaling of charged particle multiplicity in Pb-Pb collisions at SPS energies
M.C. Abreu,Bruno Alessandro,C. Alexa,R. Arnaldi,M. Atayan,C. Baglin,A. Baldit,M. Bedjidian,S. Beolè,V. Boldea,P. Bordalo,G. Borges,A. Bussiere,L. Capelli,C. Castanier,J. Castor,B. Chaurand,I. Chevrot,B. Cheynis,E. Chiavassa,C. Cicalò,T. Claudino,M. P. Comets,N. Constans,S. Constantinescu,Pietro Cortese,A. De Falco,N. De Marco,G. Dellacasa,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,S. 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,P. Macciotta,M. Mac Cormick,A. Marzari-Chiesa,M. Masera,A. Masoni,Marco Monteno,A. Musso,P. Petiau,A. Piccotti,J.-R. Pizzi,W.L. Prado da Silva,F. Prino,G. Puddu,C. Quintans,L. Ramello,S. Ramos,P. Rato Mendes,L. Riccati,A. Romana,Helena Santos,P. Saturnini,Enrico Scalas,Enrico Scomparin,S. Serci,R. Shahoyan,F. Sigaudo,S. Silva,Mario Sitta,P. Sonderegger,X. Tarrago,N.S. Topilskaya,G.L. Usai,E. Vercellin,L. Villatte,N. Willis +91 more
TL;DR: In this article, the authors measured the charged particle multiplicity distribution dN ch / dη in Pb-Pb collisions at the CERN SPS at incident energies of 40 and 158GeV per nucleon over a broad impact parameter range.