R
R. C. Walker
Researcher at California Institute of Technology
Publications - 21
Citations - 1062
R. C. Walker is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Scattering & Inelastic scattering. The author has an hindex of 13, co-authored 21 publications receiving 947 citations. Previous affiliations of R. C. Walker include University of Rochester.
Papers
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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
Measurements of the proton elastic form factors for 1 <= Q2 <= 3 (GeV/c)2 at SLAC.
R. C. Walker,R. C. Walker,B. W. Filippone,J. Jourdan,Ross Milner,Ross Milner,R. D. McKeown,D. H. Potterveld,D. H. Potterveld,L. Andivahis,R. G. Arnold,D. Benton,D. Benton,P. E. Bosted,G. deChambrier,A. Lung,A. Lung,S. E. Rock,Z. M. Szalata,A. Para,F. Dietrich,K. van Bibber,J. Button-Shafer,B. Debebe,R. S. Hicks,Sridhara Dasu,Sridhara Dasu,P. de Barbaro,A. Bodek,H. Harada,H. Harada,M. W. Krasny,M. W. Krasny,Karol Lang,E. M. Riordan,E. M. Riordan,R. Gearhart,L.W. Whitlow,J. Alster +38 more
TL;DR: Measurements of the proton form factors G Ep and GMp extracted from elastic scattering in the range 1≤Q^2≤3 (GeV/c)^2 with total uncertainties < 15% in GEp and < 3% in GMp are reported.
Journal ArticleDOI
Measurement of kinematic and nuclear dependence of R = sigma-L / sigma-t in deep inelastic electron scattering
Sridhara Dasu,Sridhara Dasu,P. de Barbaro,A. Bodek,H. Harada,H. Harada,M. W. Krasny,M. W. Krasny,Karol Lang,E. M. Riordan,E. M. Riordan,L. Andivahis,R. G. Arnold,D. Benton,D. Benton,P. E. Bosted,G. deChambrier,A. Lung,A. Lung,S. E. Rock,Z. M. Szalata,R. C. Walker,R. C. Walker,B. W. Filippone,J. Jourdan,Ross Milner,Ross Milner,R. D. McKeown,D. H. Potterveld,D. H. Potterveld,A. Para,F. S. Dietrich,K. van Bibber,J. Button-Shafer,B. Debebe,R. S. Hicks,R. A. Gearhart,L.W. Whitlow,J. Alster +38 more
TL;DR: The results show, for the first time, a clear falloff of R with increasing Q^2, indicating that possible contributions to R from nuclear higher twist effects and spin-0 constituents in nuclei are not different from those in nucleons.
Journal ArticleDOI
Measurement of the difference in R= sigma L/ sigma T and of sigma A/ sigma D in deep-inelastic e-D, e-Fe, and e-Au scattering.
S. Dasu,P. de Barbaro,A. Bodek,H. Harada,M. W. Krasny,Karol Lang,E. M. Riordan,R. G. Arnold,D. Benton,P. E. Bosted,L. Clogher,G. deChambrier,A. Lung,S. E. Rock,Z. M. Szalata,R. C. Walker,B. W. Filippone,J. Jourdan,R. G. Milner,R. D. McKeown,D. H. Potterveld,A. Para,F. S. Dietrich,K. van Bibber,J. Button-Shafer,B. Debebe,R. S. Hicks,R. A. Gearhart,L.W. Whitlow,J. Alster +29 more
TL;DR: The results for R/sup A/-R/sup D/ are consistent with zero for all x and Q/sup 2/, indicating that possible contributions to R from nuclear higher-twist effects and spin-0 constituents in nuclei are not different from those in nucleons.
Journal ArticleDOI
Delta electroproduction and inelastic charge scattering from carbon and iron.
D. T. Baran,D. T. Baran,B. F. Filippone,D. F. Geesaman,M.C. Green,R. J. Holt,H. E. Jackson,J. Jourdan,R. D. McKeown,R. G. Milner,J. Morgenstern,D. H. Potterveld,R. E. Segel,R. E. Segel,P. Seidl,R. C. Walker,B. Zeidman +16 more
TL;DR: Electroproduction of the ..delta.. isobar in C and Fe has been studied for incident electrons with energies between 0.6 and 1.6 GeV and the transverse cross sections are in good agreement with data from photo absorption.