Corrections to the one-photon approximation in the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mn>0</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow><mo>→</mo><mrow><msup><mrow><mn>2</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> transition of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>12</mn></mrow></msup></mrow><mi mathvariant="normal">C</mi></math></span>

P. Guèye; M. Bernheim; J. F. Danel; J. E. Ducret; L. Lakéhal-Ayat; J. M. Le Goff; A. Magnon; C. Marchand; J. Morgenstern; J. Marroncle; P. Vernin; A. Zghiche-Lakéhal-Ayat; V. Breton; S. Frullani; F. Garibaldi; F. Ghio; M. Jodice; Z. E. Meziani; E. Offermann; M. Traini

doi:10.1103/PhysRevC.63.051303

Rapid Communication

Corrections to the one-photon approximation in the $0^{+} \to 2^{+}$ transition of $^{12} C$

P. Guèye, M. Bernheim, J. F. Danel, J. E. Ducret, L. Lakéhal-Ayat, J. M. Le Goff, A. Magnon, C. Marchand, J. Morgenstern, J. Marroncle, P. Vernin, A. Zghiche-Lakéhal-Ayat, V. Breton, S. Frullani, F. Garibaldi, F. Ghio, M. Jodice, Z. E. Meziani, E. Offermann, and M. Traini

Phys. Rev. C 63, 051303(R) – Published 18 April 2001

Abstract

Contribution of higher order effects to the one-photon exchange approximation were studied in the first excited state of $^{12} C$ by comparing inclusive inelastic scattering cross sections of electrons and positrons obtained at the Saclay Linear Accelerator. The data were compared to a distorted wave Born approximation (DWBA) calculation. The results indicate an effect less than 2% within $2 σ,$ compatible with what was observed in recent elastic scattering measurements.

Received 1 November 2000

DOI:https://doi.org/10.1103/PhysRevC.63.051303

Authors & Affiliations

P. Guèye^*, M. Bernheim, J. F. Danel, J. E. Ducret, L. Lakéhal-Ayat, J. M. Le Goff, A. Magnon, C. Marchand, J. Morgenstern, J. Marroncle, P. Vernin, and A. Zghiche-Lakéhal-Ayat^†

DAPNIA, Service de Physique Nucléaire, CEA-Saclay, F-91191 Gif-Sur-Yvette Cedex, France

V. Breton

Laboratoire de Physique Corpusculaire, Université Blaise Pascal, Institut de Physique Nucléaire et de Physique des Particules, F-63177 Aubière Cedex, France

S. Frullani, F. Garibaldi, F. Ghio, and M. Jodice

Laboratorio di Fisica, Istituto Superiore di Sanità e Istituto di Fisica Nucleare, Sezione Sanità, I-00161 Roma, Italy

Z. E. Meziani

Department of Physics, Temple University, Philadelphia, Pennsylvania 19122

E. Offermann^‡

Thomas Jefferson National Accelerator Facility (TJNAF), 12000 Jefferson Avenue, Newport News, Virginia 23606

M. Traini

Dipartimento di Fisica, Università degli Studi di Trento, I-38050 Povo (Trento), Italy
INFN, G.C. Trento, Italy

^*Present address: Hampton University, Nuclear High Energy Research Physics Center, Hampton, VA 23606.
^†Present address: Center de Recherches Nucléaires Cronenbourg, F-67037 Strasbourg Cédex, France.
^‡Present address: Renaissance Technologies Corp., 600 Rt. 25A, East Setauket, NY 11733.

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Vol. 63, Iss. 5 — May 2001

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