R
R. Roche
Researcher at Florida State University
Publications - 32
Citations - 1566
R. Roche is an academic researcher from Florida State University. The author has contributed to research in topics: Nucleon & Quantum chromodynamics. The author has an hindex of 20, co-authored 31 publications receiving 1450 citations. Previous affiliations of R. Roche include Old Dominion University.
Papers
More filters
Journal ArticleDOI
Proton elastic form-factor ratios to Q**2 = 3.5-GeV**2 by polarization transfer
V. A. Punjabi,C. F. Perdrisat,K. A. Aniol,F. T. Baker,J. Berthot,P.Y. Bertin,William Bertozzi,A. Besson,L. Bimbot,W. U. Boeglin,E. J. Brash,E. J. Brash,E. J. Brash,D. S. Brown,J. R. Calarco,L. Cardman,Z. Chai,C. C. Chang,Jian-Ping Chen,E. Chudakov,S. Churchwell,E. Cisbani,D. S. Dale,R. De Leo,A. Deur,A. Deur,B. Diederich,J. Domingo,M. B. Epstein,L. A. Ewell,Kevin Fissum,Kevin Fissum,Andre Fleck,H. Fonvieille,Salvatore Frullani,J. Gao,J. Gao,Franco Garibaldi,A. Gasparian,A. Gasparian,G. M. Gerstner,Shalev Gilad,Ronald Gilman,A. V. Glamazdin,Charles Glashausser,J. Gomez,V. Gorbenko,A. Green,J. O. Hansen,C. R. Howell,G. M. Huber,M. Iodice,C. W. de Jager,S. Jaminion,X. Jiang,M. K. Jones,M. K. Jones,W. Kahl,James J. Kelly,M. Khayat,Laird Kramer,G. Kumbartzki,M. Kuss,E. Lakuriki,G. Laveissière,J. J. LeRose,M. Liang,R. A. Lindgren,Nilanga Liyanage,Nilanga Liyanage,Nilanga Liyanage,G. J. Lolos,R. Macri,R. Madey,R. Madey,S. Malov,D. J. Margaziotis,Pete Markowitz,K. McCormick,K. McCormick,K. McCormick,Justin I. McIntyre,R. L.J. van der Meer,R. L.J. van der Meer,R. Michaels,B. D. Milbrath,J. Y. Mougey,S. K. Nanda,E. A.J.M. Offermann,Z. Papandreou,L. Pentchev,G. G. Petratos,N. M. Piskunov,R. I. Pomatsalyuk,David L. Prout,G. Quéméner,Ronald Ransome,Brian Raue,Y. Roblin,Y. Roblin,R. Roche,R. Roche,G. Rutledge,P. M. Rutt,A. Saha,T. Saito,A. J. Sarty,A. J. Sarty,T. P. Smith,Pavel Sorokin,S. Strauch,S. Strauch,R. Suleiman,R. Suleiman,K. Takahashi,J. A. Templon,L. Todor,L. Todor,P. E. Ulmer,G. M. Urciuoli,P. Vernin,Branislav Vlahovic,H. Voskanyan,K. Wijesooriya,Bogdan Wojtsekhowski,R. J. Woo,F. Xiong,George Dan Zainea,Z. L. Zhou +128 more
TL;DR: In this article, the authors measured Pt and P, the transverse and longitudinal recoil proton polarization components, respectively, for the elastic epepreaction in the four-momentum transfer squared range of 0.5 to 3.5 GeV2.
Journal ArticleDOI
Measurements of the Elastic Electromagnetic Form Factor Ratio Mu(P)G(Ep)/G(Mp) Via Polarization Transfer
Olivier Gayou,Olivier Gayou,K. Wijesooriya,Andrei Afanasev,Andrei Afanasev,M. Amarian,K. A. Aniol,S. Becher,K. Benslama,L. Bimbot,P. Bosted,E. J. Brash,J. R. Calarco,Z. Chai,C. C. Chang,T. Chang,Jian-Ping Chen,Seonho Choi,E. Chudakov,S. Churchwell,D. Crovelli,Sonja Dieterich,S. Dumalski,Dipanwita Dutta,M. B. Epstein,Kevin Fissum,B. D. Fox,S. Frullani,Haiyan Gao,J. Gao,F. Garibaldi,Ronald Gilman,Ronald Gilman,S. Glamazdin,Charles Glashausser,J. Gomez,V. Gorbenko,Olfred Hansen,R. J. Holt,J. Hovdebo,G. M. Huber,C. W. de Jager,X. Jiang,C. E. Jones,M. K. Jones,James J. Kelly,E. R. Kinney,Edgar E. Kooijman,G. Kumbartzki,M. Kuss,J. J. LeRose,M. Liang,R. A. Lindgren,Nilanga Liyanage,S. Malov,D. J. Margaziotis,Pete Markowitz,K. McCormick,D. Meekins,Z. E. Meziani,R. Michaels,John C. Mitchell,L. Morand,C. F. Perdrisat,R. I. Pomatsalyuk,V. A. Punjabi,Ronald Ransome,R. Roche,M. Rvachev,A. Saha,A. J. Sarty,A. J. Sarty,E. Schulte,E. Schulte,Daniel Simon,Steffen Strauch,R. Suleiman,L. Todor,P. E. Ulmer,G. M. Urciuoli,Bogdan Wojtsekhowski,F. Xiong,W. Xu +82 more
TL;DR: In this paper, the authors used the Jefferson Lab Hall Focal Plane Polarimeter to determine the longitudinal and transverse components of the recoil proton polarization in ep elastic scattering; the ratio of these polarization components is proportional to the proportion of the two form factors.
Journal ArticleDOI
Final analysis of proton form factor ratio data at Q(2)=4.0, 4.8, and 5.6 GeV2
Andrew Puckett,Andrew Puckett,E. J. Brash,E. J. Brash,Olivier Gayou,Olivier Gayou,M. K. Jones,L. Pentchev,C. F. Perdrisat,V. A. Punjabi,K. A. Aniol,T. Averett,Fatiha Benmokhtar,William Bertozzi,L. Bimbot,J. R. Calarco,C. Cavata,Z. Chai,C. C. Chang,T. Chang,J. P. Chen,E. Chudakov,R. De Leo,Sonja Dieterich,R. Endres,M. B. Epstein,Stephanie Escoffier,Kevin Fissum,H. Fonvieille,S. Frullani,J. Gao,F. Garibaldi,Shalev Gilad,Ronald Gilman,Ronald Gilman,A. V. Glamazdin,Charles Glashausser,J. Gomez,J. O. Hansen,Douglas Higinbotham,G. M. Huber,Mauro Iodice,C. W. de Jager,C. W. de Jager,X. Jiang,M. Khandaker,S. Kozlov,K. Kramer,G. J. Kumbartzki,J. J. LeRose,D. Lhuillier,R. A. Lindgren,Nilanga Liyanage,G. J. Lolos,D. J. Margaziotis,F. Marie,Pete Markowitz,K. McCormick,R. Michaels,B. D. Milbrath,S. K. Nanda,D. Neyret,N. M. Piskunov,Ronald Ransome,Brian Raue,R. Roche,M. Rvachev,C. Salgado,Simon Širca,I. Sitnik,S. Strauch,L. Todor,E. Tomasi-Gustafsson,G. M. Urciuoli,H. Voskanyan,K. Wijesooriya,Bogdan Wojtsekhowski,X. Zheng,L. Zhu +78 more
TL;DR: In particular, the polarization transfer results have exposed the limits of applicability of the one-photon exchange approximation and highlighted the role of quark orbital angular momentum in the nucleon structure.
Journal ArticleDOI
Precision measurement of the neutron spin asymmetries and spin-dependent structure functions in the valence quark region
X. Zheng,K. A. Aniol,D. S. Armstrong,T. Averett,T. Averett,William Bertozzi,S. Binet,E. Burtin,Emmanuel Busato,C. Butuceanu,J. R. Calarco,A. Camsonne,Gordon D. Cates,Z. Chai,Jian-Ping Chen,Seonho Choi,E. Chudakov,F. Cusanno,R. De Leo,A. Deur,Sonja Dieterich,Dipangkar Dutta,J. M. Finn,S. Frullani,Haiyan Gao,Jiansong Gao,F. Garibaldi,Shalev Gilad,Ronald Gilman,Ronald Gilman,J. Gomez,J. O. Hansen,Douglas Higinbotham,W. Hinton,T. Horn,C. W. de Jager,X. Jiang,L. J. Kaufman,James J. Kelly,Wolfgang Korsch,K. Kramer,J. LeRose,D. Lhuillier,Nilanga Liyanage,D. J. Margaziotis,F. Marie,Pete Markowitz,K. McCormick,Z. E. Meziani,R. Michaels,Bryan J. Moffit,S. K. Nanda,D. Neyret,S. K. Phillips,A. Powell,T. Pussieux,B. Reitz,J. Roche,R. Roche,M. Roedelbronn,Guy Ron,M. Rvachev,Arijit Saha,N. Savvinov,Jaideep Singh,S. Širca,Karl Slifer,P. Solvignon,Paul Souder,D. J. Steiner,S. Strauch,V. Sulkosky,Adam M. Tobias,G. M. Urciuoli,Antonin Vacheret,Bogdan Wojtsekhowski,Hua Xiang,Y. Xiao,F. Xiong,Baile Zhang,L. Zhu,Xiaofeng Zhu,P. A. Zolnierczuk +82 more
TL;DR: In this paper, the authors report on measurements of the neutron spin asymmetries and polarized structure functions at three kinematics in the deep inelastic region, with $x=0.33, 0.47 and 0.60.
Journal ArticleDOI
Precision measurement of the neutron spin asymmetry A1**N and spin flavor decomposition in the valence quark region
X. Zheng,K. A. Aniol,D. S. Armstrong,T. Averett,T. Averett,William Bertozzi,S. Binet,E. Burtin,E. Busato,C. Butuceanu,J. R. Calarco,A. Camsonne,Gordon D. Cates,Z. Chai,Jian-Ping Chen,Seonho Choi,E. Chudakov,F. Cusanno,R. De Leo,A. Deur,Sonja Dieterich,Dipanwita Dutta,J. M. Finn,S. Frullani,Haiyan Gao,Jiansong Gao,F. Garibaldi,Shalev Gilad,Ronald Gilman,Ronald Gilman,J. Gomez,J. O. Hansen,Douglas Higinbotham,W. Hinton,T. Horn,C. W. de Jager,X. Jiang,L. J. Kaufman,James J. Kelly,Wolfgang Korsch,K. Kramer,J. J. LeRose,D. Lhuillier,Nilanga Liyanage,D. J. Margaziotis,F. Marie,Pete Markowitz,K. McCormick,Z. E. Meziani,R. Michaels,Bryan J. Moffit,S. K. Nanda,D. Neyret,S. K. Phillips,A. Powell,T. Pussieux,B. Reitz,J. Roche,R. Roche,M. Roedelbronn,Guy Ron,M. Rvachev,A. Saha,N. Savvinov,Jaideep Singh,S. Širca,Karl Slifer,P. Solvignon,Paul Souder,D. J. Steiner,S. Strauch,V. Sulkosky,Adam M. Tobias,G. M. Urciuoli,Antonin Vacheret,Bogdan Wojtsekhowski,H. Xiang,Y. Xiao,F. Xiong,Baile Zhang,L. Zhu,Xiaofeng Zhu,P. A. Zolnierczuk +82 more
TL;DR: The results unambiguously show, for the first time, that A(n)(1) crosses zero around x=0.47 and becomes significantly positive at x= 0.60, which agrees with relativistic constituent quark models and with perturbative quantum chromodynamics analyses based on the earlier data.