J
J.R. Holt
Researcher at University of Liverpool
Publications - 21
Citations - 1305
J.R. Holt is an academic researcher from University of Liverpool. The author has contributed to research in topics: Meson & Pion. The author has an hindex of 12, co-authored 21 publications receiving 1247 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
POLARIZED TARGET ASYMMETRY FOR PI-ZERO PHOTOPRODUCTION AT 4 GeV.
P.S.L. Booth,G.R. Court,B. Craven,R. Gamet,P.J. Hayman,J.R. Holt,A.P. Hufton,J. N. Jackson,J.H. Norem,W.H. Range +9 more
TL;DR: The polarized target asymmetry parameter has been measured for single πo photoproduction from hydrogen at 4 GeV and values of four-momentum transfer squared between −0.15 (GeV/c)2 and −1.8
Journal ArticleDOI
Comparison of forward hadrons produced in muon interactions on nuclear targets and deuterium
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,M. Düren,N. Dyce,A. W. Edwards,M. Edward,T. Ernst,M. I. Ferrero,David Francis,E. Gabathuler,R. Gamet,V. Gibson,J. Gillies,P. Grafström,Klaus Hamacher,D. von 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,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,W.S.C. Williams,Stephen Wimpenny,Roland Windmolders,J. Womersley,Karl Ziemons +91 more
TL;DR: In this paper, the multiplicities of forward produced hadrons in deep inelastic muon scattering on nuclear targets have been compared with those from deuterium, and the ratios are observed to increase towards unity as the virtual photon energy increases with no significant dependence on the other muon kinematic variables.
Journal ArticleDOI
A measurement of the ratio of the nucleon structure function in copper and deuterium
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. C. Edwards,T. Ernst,M. I. Ferrero,David Francis,E. Gabathuler,J. Gajewski,R. Gamet,V. Gibson,J. Gillies,P. Grafström,Klaus Hamacher,D. von 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,M. Matthews,Y. Mizuno,Klaus Mönig,F. Montanet,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,Bogdan Povh,P. B. Renton,J. M. Rieubland,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,L. Urban,W. Wallucks,S. Wheeler,W.S.C. Williams,Stephen Wimpenny,Roland Windmolders,J. Womersley,Karl Ziemons +90 more
TL;DR: In this paper, the ratios of the nucleon structure function in copper to deuterium from two separate experiments were analyzed and it was found that the data are compatible with no integral loss of quark momenta due to nuclear effects.
Journal ArticleDOI
Forward produced hadrons in mu p and mu d scattering and investigation of the charge structure of the nucleon
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,M. Düren,N. Dycew,A. W. Edwards,M. Edwards,T. Ernst,J. Favier,M. I. Ferrero,David Francis,E. Gabathuler,R. Gamet,V. Gibson,J. Gillies,P. Grafström,Klaus Hamacher,D. von 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,D. Lauterjung,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. Pietrzyt,Uwe Pietrzyk,Bogdan Povh,P. B. Renton,J. M. Rieubland,K. Rith,E. Rondio,L. Ropelewski,D. Salmon,A. Sandacz,A. Schlagböhmer,Adam C. Schneider,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,H. Wahlen,W. Wallucks,M. Whalley,S. Wheeler,W.S.C. Williams,Stephen Wimpenny,Roland Windmolders,J. Womersley,Karl Ziemons +97 more
TL;DR: In this paper, the authors used the EMC forward spectrometer to measure the production of forward charged hadrons in μp and μd scattering at incident beam energies between 100 and 280 GeV.