Elastic Electron-Proton Scattering at Large Four-Momentum Transfer

Creators: Kirk, P. N.; Breidenbach, M.; Friedman, J. I.; Hartmann, G. C.; Kendall, H. W.; Buschhorn, G.; Coward, D. H.; DeStaebler, H.; Early, R. A.; Litt, J.; Minten, A.; Mo, L. W.; Panofsky, W. K. H.; Taylor, R. E.; Barish, B. C.; Loken, S. C.; Mar, J.; Pine, J.

Abstract

Electron-proton elastic-scattering cross sections have been measured at the Stanford Linear Accelerator Center for four-momentum transfers squared q^2 from 1.0 to 25.0 (GeV/c)^2. The electric (GEp) and magnetic (GMp) form factors of the proton were not separated, since angular distributions were not measured at each q^2. However, values for GMp were derived assuming various relations between GEp and GMp. Several theoretical models for the behavior of the proton magnetic form factor at high values of q^2 are compared with the data.

Additional Information

©1973 The American Physical Society Received 13 January 1972 We wish to express our gratitude and appreciation to all the members of the Stanford Linear Accelerator Center. Particular acknowledgements are due to those who helped build the spectrometer facility under the direction of E.A. Taylor. L.E. Brown, R.R. Cochran, A.J. Cook, W. Davies-White, and A. Gallagher were all active in the mechanical design of the magnetic systems and support structures of the spectrometers. M. Berndt was in charge of the large power supplies for the magnets. M.J. Browne, T.J. Lawrence, and R.P. Paul provided most of the engineering effort for the instrumentation of the spectrometers. The on-line computer used in the experiment was brought up and maintained by W.L. Graves and N.M. Heinen, who were also active in the interfacing of the computer to the experiment. R.M. Brown, M.A. Fisherkeller, and A.E. Gromme of the Computer Group at SLAC provided a great deal of effort on the basic systems for the computer. Our thanks are also due to members of Group "C" and Group "F" at SLAC, who collaborated on the construction of the facility, and to K.L. Brown of SLAC and Charles Peck of C.I.T. for their collaboration on the basic design of the 8-GeV/c spectrometer. We are grateful for the operation of the accelerator by the Technical Division under the direction of R.B. Neal and for the operation of the accelerator proper under the direction of V.G. Price. We were greatly assisted by the efforts of E.J. Seppi, J.L. Harris, and H.A. Weidner in the operation of the beam switchyard. The contribution of the chief operators and the operating crews under the very trying circumstances of obatining precision beams from a new accelerator is much appreciated. We are grateful to E. Campell and E. Miller for help with portions of the data analysis, and to the M.I.T. Physics Department and Laboratory of Nuclear Science for their support of the M.I.T. collaborators. Finally, we wish to thank Arlene Spurlock for her untiring efforts as secretary to Group "A" at SLAC. Work supported by the U.S. Atomic Energy Commission.

Files

KIRprd73.pdf

Files (5.2 MB)

Name	Size	Download all
KIRprd73.pdf md5:65b5124d13bbcd5087cb272b8eedc669	5.2 MB	Preview Download

Additional details

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes