R
R. G. Arnold
Researcher at American University
Publications - 66
Citations - 5908
R. G. Arnold is an academic researcher from American University. The author has contributed to research in topics: Scattering & Proton. The author has an hindex of 40, co-authored 66 publications receiving 5555 citations.
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Journal ArticleDOI
Search for short-lived axions in an electron-beam-dump experiment.
E. M. Riordan,M. W. Krasny,Karol Lang,P. de Barbaro,Arie Bodek,S. Dasu,N. Varelas,Xiangrong Wang,R. G. Arnold,D. Benton,P. E. Bosted,L. Clogher,A. Lung,Stephen M. Rock,Z. M. Szalata,B. W. Filippone,R. C. Walker,James D. Bjorken,M. Crisler,A. Para,Lambert Jm,J. Button-Shafer,B. Debebe,M. Frodyma,R. S. Hicks,G. A. Peterson,R. Gearhart +26 more
TL;DR: In conjunction with measurements of the electron’s anomalous magnetic moment, this experiment shows that the narrow positron peaks observed in heavy-ion collisions at the Gessellschaft fur Schwerionenforschung are not due to an elementary pseudoscalar.
Journal ArticleDOI
Determination of the neutron spin structure function.
P.L. Anthony,R. G. Arnold,H. R. Band,H. Borel,P. E. Bosted,Vincent Breton,Gordon D. Cates,Timothy Chupp,F. S. Dietrich,J. A. Dunne,R. Erbacher,J. Fellbaum,H. Fonvieille,R. A. Gearhart,R. Holmes,E. W. Hughes,J.R. Johnson,D. Kawall,C. E. Keppel,S. E. Kuhn,R. M. Lombard-Nelsen,J. Marroncle,T. Maruyama,W. Meyer,Z. E. Meziani,H. Middleton,J. Morgenstern,Nathan R. Newbury,G. G. Petratos,R. Pitthan,R. Prepost,Y. Roblin,S. E. Rock,Sayed Rokni,Gilbert Shapiro,Thomas E. Smith,Paul Souder,M. Spengos,F. Staley,L. M. Stuart,Z. M. Szalata,Y. Terrien,Alan K. Thompson,James L. White,M. Woods,J. Xu,C. C. Young,G. H. Zapalac +47 more
TL;DR: The authors report the results of the experiment E142 which measured the spin dependent structure function of the neutron, which confirms the fundamental Bjorken sum rule with O({alpha}{sub s}{sup 3}) corrections to within one standard deviation, a major success for perturbative Quantum Chromodynamics.
Journal ArticleDOI
Measurements of the A-dependence of deep-inelastic electron scattering from nuclei
R. G. Arnold,Peter Bosted,C. C. Chang,J. Gomez,A. T. Katramatou,G. G. Petratos,A. A. Rahbar,S. E. Rock,A. F. Sill,Z. M. Szalata,Arie Bodek,N. Giokaris,D. J. Sherden,B. Mecking,R. M. Lombard +14 more
TL;DR: In this article, the deepinelastic electron-scattering cross sections per nucleon were measured in the kinematic range $0.09l~xl~0.9$ and $2l~{Q}^{2}l~15$ with use of electrons with energies ranging from 8 to 24.
Journal ArticleDOI
Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2
Koji Abe,T. Akagi,P.L. Anthony,R. Antonov,R. G. Arnold,T. Averett,T. Averett,H. R. Band,J. M. Bauer,J. M. Bauer,H. Borel,P. E. Bosted,Vincent Breton,J. Button-Shafer,J. P. Chen,J. P. Chen,Timothy Chupp,J. Clendenin,C. Comptour,K. P. Coulter,G. Court,G. Court,D. Crabb,M. Daoudi,Donal Day,F. S. Dietrich,J. A. Dunne,J. A. Dunne,H. Dutz,H. Dutz,R. Erbacher,J. Fellbaum,A. Feltham,H. Fonvieille,Emil Frlez,D. Garvey,R. Gearhart,J. Gomez,P. Grenier,K. A. Griffioen,K. A. Griffioen,S. Hoibraten,E. W. Hughes,E. W. Hughes,Ch. Hyde-Wright,J. R. Johnson,D. Kawall,Avraham Klein,S. E. Kuhn,M. Kuriki,R. A. Lindgren,T. J. Liu,R. M. Lombard-Nelsen,J. Marroncle,T. Maruyama,X.K. Maruyama,J. S. McCarthy,W. Meyer,W. Meyer,Z. E. Meziani,Z. E. Meziani,R. C. Minehart,John C. Mitchell,J. Morgenstern,G. G. Petratos,G. G. Petratos,R. Pitthan,Dinko Pocanic,C. Y. Prescott,R. Prepost,P. Raines,B. Raue,B. Raue,D. Reyna,A. Rijllart,A. Rijllart,Y. Roblin,L. S. Rochester,S. E. Rock,O. Rondon,Ingo Sick,L. C. Smith,Timothy B. Smith,M. Spengos,M. Spengos,F. Staley,Pascal Steiner,S.St. Lorant,L. M. Stuart,F. Suekane,Z. M. Szalata,H. Tang,Y. Terrien,T. L. Usher,D. Walz,F.R. Wesselmann,James L. White,James L. White,K. Witte,C. C. Young,B. Youngman,H. Yuta,G. H. Zapalac,B. Zihlmann,D. Zimmermann +104 more
TL;DR: In this paper, the authors reported measurements of the proton and deuteron spin structure functions at beam energies of 29.1, 16.2, and 9.7 GeV.
Journal ArticleDOI
Measurement of the A dependence of deep-inelastic electron scattering.
J. Gomez,R. G. Arnold,P. E. Bosted,C. C. Chang,A. T. Katramatou,G. G. Petratos,A. A. Rahbar,S. E. Rock,A. F. Sill,Z. M. Szalata,Arie Bodek,N. Giokaris,D. J. Sherden,B. Mecking,R. M. Lombard-Nelsen +14 more
TL;DR: In this paper, cross sections for deep-inelastic electron scattering from liquid deuterium, gaseous $4}\mathrm{He}$, and solid Be, C, Al, Ca, Fe, Ag, and Au targets were measured at the Stanford Linear Accelerator Center using electrons with energies ranging from 8 to 24.5 GeV.