Nuclear-density dependence of the electron-proton coupling

G. van der Steenhoven; A. M. van den Berg; H. P. Blok; S. Boffi; J. F. J. van den Brand; R. Ent; T. de Forest, Jr; C. Giusti; J. W. A. den Herder; E. Jans; G. J. Kramer; J. B. J. M. Lanen; L. Lapikás; J. Mougey; P. J. Mulders; F. D. Pacati; E. N. M. Quint; P. K. A. de Witt Huberts

doi:10.1103/PhysRevLett.58.1727

Nuclear-density dependence of the electron-proton coupling

G. van der Steenhoven, A. M. van den Berg, H. P. Blok, S. Boffi, J. F. J. van den Brand, R. Ent, T. de Forest, Jr., C. Giusti, J. W. A. den Herder, E. Jans, G. J. Kramer, J. B. J. M. Lanen, L. Lapikás, J. Mougey, P. J. Mulders, F. D. Pacati, E. N. M. Quint, and P. K. A. de Witt Huberts

Phys. Rev. Lett. 58, 1727 – Published 27 April 1987

Abstract

A quasielastic (e,e’p) experiment has been performed on ${}^{6}{Li}$ for both backward- (transverse) and forward-angle (longitudinal) electron kinematics. Cross sections for knockout of protons from two different orbits (1s and 1p) have been measured simultaneously. The densities probed by the (e,e’p) reaction differ by a factor of 4 between these orbits. In both cases the backward/forward cross-section ratio deviates by the same amount from the impulse approximation.

Received 24 November 1986

DOI:https://doi.org/10.1103/PhysRevLett.58.1727

Authors & Affiliations

G. van der Steenhoven, A. M. van den Berg, H. P. Blok, S. Boffi, J. F. J. van den Brand, R. Ent, T. de Forest, Jr., C. Giusti, J. W. A. den Herder, E. Jans, G. J. Kramer, J. B. J. M. Lanen, L. Lapikás, J. Mougey, P. J. Mulders, F. D. Pacati, E. N. M. Quint, and P. K. A. de Witt Huberts

Nationaal Instituut voor Kernfysica en Hoge Energiefysica (NIKHEF-K), 1009 AJ Amsterdam, The Netherlands;
Natuurkundig Laboratorium, Vrije Universiteit, Amsterdam, The Netherlands;
Fysisch Laboratorium, Rijksuniversiteit Utrecht, Utrecht, The Netherlands;
Département de Physique Nucléaire et de Hautes Energies, Centre d’Etudes Nucléaires de Saclay, 91191 Gif-sur-Yvette Cedex, France and Continuous Electron Beam Accelerator Facility, Newport News, Virginia 23606; and
Dipartimento di Fisica Nucleare e Teorica dell’Università, Pavia, Italy and Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Pavia, Italy