J
J. Beaufays
Researcher at CERN
Publications - 42
Citations - 3266
J. Beaufays is an academic researcher from CERN. The author has contributed to research in topics: Muon & Scattering. The author has an hindex of 25, co-authored 42 publications receiving 3112 citations.
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Journal ArticleDOI
An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons on polarised protons
J. G. Ashman,B. Badelek,Günter Baum,J. Beaufays,Christopher Bee,C. Benchouk,I. G. Bird,S.C. Brown,M. C. Caputo,Harry Cheung,J. S. Chima,Jacek Ciborowski,R. W. Clifft,G. Coignet,F. Combley,G.R. Court,G. D'Agostini,J. Drees,Michael Düren,N. Dyce,A. W. Edwards,M. Edwards,T. Ernst,M. I. Ferrero,David Francis,E. Gabathuler,R. Gamet,V. Gibson,J. Gillies,P. Grafström,Klaus Hamacher,D. V. Harrach,P.J. Hayman,J.R. Holt,V. W. Hughes,A. Jacholkowska,Tim Jones,E. M. Kabuss,B. Korzen,U. Krüner,S. Kullander,Ulrich Landgraf,D. Lanske,F. Lettenström,T. Lindqvist,J. G. Loken,M. Matthews,Y. Mizuno,Klaus Mönig,F. Montanet,E. Nagy,J. Nassalski,T.O. Niinikoski,P. R. Norton,F. G. Oakham,R. F. Oppenheim,A.M. Osborne,V. Papavassiliou,N. Pavel,C. Peroni,H. Peschel,Ricardo Piegaia,B. Pietrzyk,Uwe Pietrzyk,Bogdan Povh,P. B. Renton,J. M. Rieubland,A. Rijllart,K. Rith,E. Rondio,L. Ropelewski,D. Salmon,A. Sandacz,T. Schröder,K. P. Schüler,K. Schultze,T. A. Shibata,T. J. Sloan,Amedeo Staiano,H. E. Stier,J. Stock,Geoffrey Taylor,Joshua Thompson,T. Walcher,Jozsef Toth,L. Urban,W. Wallucks,S. Wheeler,D. A. Williams,W.S.C. Williams,Stephen Wimpenny,Roland Windmolders,W. J. Womersley,Karl Ziemons +93 more
TL;DR: An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons on polarised protons was performed in this article, where the spin was investigated in the context of the deep scattering process of polarized muons.
Journal ArticleDOI
Gottfried sum from the ratio F2n/F2p.
P. Amaudruz,Michele Arneodo,A. Arvidson,B. Badelek,Günter Baum,J. Beaufays,I. G. Bird,M. Botje,C. Broggini,W. Brückner,A. Brüll,W. J. Burger,J. Ciborowski,Crittenden R,van Dantzig R,H. Döbbeling,J. Domingo,J. Drinkard,A. R. Dzierba,H. Engelien,M.I. Ferrero,Fluri Ml,P. Grafström,von Harrach D,van der Heijden M,C. A. Heusch,Q. Ingram,A. Jacholkowska,K. Janson,de Jong M,E. M. Kabuss,R. Kaiser,Tjeerd Ketel,Frank Klein,B. Korzen,U. Krüner,S. Kullander,Ulrich Landgraf,F. Lettenström,T. Lindqvist,Gerhard K. Mallot,Chiara Mariotti,van Middelkoop G,Y. Mizuno,J. Nassalski,D. Nowotny,N. Pavel,H. Peschel,Cristiana Peroni,Bogdan Povh,R. Rieger,Klaus Rith,K. Röhrich,E. Rondio,L. Ropelewski,A. Sandacz,C. Scholz,R. A. Schumacher,Urs Sennhauser,F. Sever,T.-A. Shibata,M. Siebler,A. Simon,Amedeo Staiano +63 more
TL;DR: Experimental results obtained at the CERN Super Proton Synchrotron on the structure function ratio F2n/F2p in the kinematic range 0.004 < x < 0.8 and 0.4 < Q2 < 190 GeV2, together with...
Journal ArticleDOI
Measurement of the proton and deuteron structure functions, F2p and F2d, and of the ratio sigmaL/sigmaT.
Michele Arneodo,A. Arvidson,B. Badelek,B. Badelek,M. Ballintijn,G. Baum,J. Beaufays,I. Bird,I. Bird,P. Björkholm,M. Botje,C. Broggini,C. Broggini,W. Brückner,A. Brüll,A. Brüll,W.J. Burger,W.J. Burger,J. Ciborowski,R. van Dantzig,A. Dyring,H. Engelien,M.I. Ferrero,L. Fluri,U. Gaul,T. Granier,M. Grosse-Perdekamp,M. Grosse-Perdekamp,D. von Harrach,D. von Harrach,M. van der Heijden,C. A. Heusch,Q. Ingram,M. de Jong,E.M. Kabuß,E.M. Kabuß,R. Kaiser,Tjeerd Ketel,Frank Klein,Frank Klein,S. Kullander,Ulrich Landgraf,T. Lindqvist,G. K. Mallot,Chiara Mariotti,G. van Middelkoop,A. Milsztajn,Y. Mizuno,Y. Mizuno,A. Mücklich,J. Nassalski,D. Nowotny,J. Oberski,A. Paić,Cristiana Peroni,B. Povh,B. Povh,K. Prytz,K. Prytz,R. Rieger,Klaus Rith,Klaus Rith,K. Röhrich,E. Rondio,L. Ropelewski,A. Sandacz,D. Sanders,C. Scholz,R. Seitz,R. Seitz,F. Sever,F. Sever,T.-A. Shibata,M. Siebler,A. Simon,A. Simon,Amedeo Staiano,Michal Szleper,W. Tlaczala,Y. Tzamouranis,M. Virchaux,J.-L. Vuilleumier,Thomas Walcher,Roland Windmolders,A. Witzmann,K. Zaremba,F. Zetsche +86 more
TL;DR: In this article, the muon-proton and muon deuteron inclusive deep inelastic scattering cross sections were measured in the kinematic range 0.002 < x < 0.60 and 0.5 < Q(2) < 75 GeV2 at incident muon energies of 90, 120, 200 and 280 GeV.
Journal ArticleDOI
Reevaluation of the Gottfried sum
Michele Arneodo,A. Arvidson,B. Badelek,M. Ballintijn,Günter Baum,J. Beaufays,I. G. Bird,P. Björkholm,M. Botje,C. Broggini,W. Brückner,A. Brüll,W. J. Burger,J. Ciborowski,van Dantzig R,A. Dyring,H. Engelien,M.I. Ferrero,L. Fluri,U. Gaul,T. Granier,von Harrach D,van der Heijden M,C. A. Heusch,Q. Ingram,K. Janson-Prytz,de Jong M,E. M. Kabuss,Ralf Kaiser,Tjeerd Ketel,Friedrich Klein,S. Kullander,Ulrich Landgraf,T. Lindqvist,Gerhard K. Mallot,Chiara Mariotti,van Middelkoop G,A. Milsztajn,Y. Mizuno,J. Nassalski,J. Oberski,D. Nowotny,A. Paić,Cristiana Peroni,Bogdan Povh,R. Rieger,Klaus Rith,K. Röhrich,E. Rondio,L. Ropelewski,A. Sandacz,D. Sanders,C. Scholz,R. A. Schumacher,R. Seitz,F. Sever,T.-A. Shibata,M. Siebler,A. Simon,Amedeo Staiano,Michal Szleper,Y. Tzamouranis,M. Virchaux,J.-L. Vuilleumier +63 more
TL;DR: A new determination of the nonsinglet structure function is presented, which remains below the simple quark-parton model value of 1/3.
Journal ArticleDOI
The structure function ratios F2C/F2D and F2C/F2D at small x
Michele Arneodo,A. Arvidson,B. Badelek,M. Ballintijn,G. Baum,J. Beaufays,I.G. Bird,P. Björkholm,M. Botje,C. Broggini,W. Brückner,A. Brüll,W. J. Burger,J. Ciborowski,R. van Dantzig,A. Dyring,H. Engelien,M.I. Ferrero,L. Fluri,U. Gaul,T. Granier,M. Grosse-Perdekamp,D. von Harrach,M. van der Heijden,C. A. Heusch,G. Igo,Q. Ingram,K. Janson-Prytz,M. de Jong,E. M. Kabuβ,R. Kaiser,H. J. Kessler,Tjeerd Ketel,F. Klein,S. Kullander,Ulrich Landgraf,T. Lindqvist,G. K. Mallot,Chiara Mariotti,G. van Middelkoop,A. Milsztajn,Y. Mizuno,A. Mücklich,J. Nassalski,D. Nowotny,J. Oberski,A. Paić,Cristiana Peroni,B. Povh,R. Rieger,K. Rith,K. Röhrich,E. Rondio,L. Ropelewski,A. Sandacz,D. Sanders,C. Scholz,R. Seitz,F. Sever,T.-A. Shibata,M. Siebler,A. Simon,Amedeo Staiano,Michal Szleper,Y. Tzamouranis,M. Virchaux,J. L. Vuilleumier,Thomas Walcher,C. A. Whitten,Roland Windmolders,A. Witzmann,F. Zetsche +71 more
TL;DR: In this article, the structure function ratios measured in deep inelastic muonnucleus scattering at a nominal incident muon energy of 200 GeV were obtained for values of x less than 0.002.