Comment on ‘‘E2 contribution to the p8+7Be Coulomb dissociation cross section’’

Moshe Gai and Carlos A. Bertulani
Phys. Rev. C 52, 1706 – Published 1 September 1995
PDFExport Citation

Abstract

The E2 cross section calculated by Langanke and Shoppa for the RIKEN experiment on the Coulomb dissociation of B8 uses E2 nuclear matrix element from one specific model. Other nuclear models predict a considerably smaller E2 cross section (by approximately a factor of 3 to 4), and Langanke and Shoppa appear to assume the most optimistic scenario, predicting a large E2 cross section. We also note that Barker has already criticized the nuclear model used by Langanke and Shoppa. A model independent chi-square analysis of the RIKEN data suggest the best fit for the current RIKEN data is obtained with E1 amplitudes only. The upper limit (90% confidence) on the E2 component derived from our chi-square analysis is considerably smaller than that used by Langanke and Shoppa. The model dependent analysis of Langanke and Shoppa should not be considered as a correction to the RIKEN result, as claimed, and their quoted S17(0) is not substantiated.

  • Received 25 May 1994

DOI:https://doi.org/10.1103/PhysRevC.52.1706

©1995 American Physical Society

Authors & Affiliations

Moshe Gai

  • Department of Physics-U46, The University of Connecticut, Storrs, Connecticut 06269
  • Department of Physics, Yale University, New Haven, Connecticut 06511

Carlos A. Bertulani

  • Instituto de Fisica, UFRJ-Cidade Universitaria, Caixa Postal 68528, 21945-970 Rio de Janeiro, Brazil
  • Gesselschaft für Schwerionenforschung Darmstadt m.b.H., KPII, Planckstrasse 1, D-64291 Darmstadt, Germany

Comments & Replies

Erratum: E2 contribution to the p8+7Be Coulomb dissociation cross section [Phys. Rev. C 49, 1771 (1994)]

K. Langanke and T. D. Shoppa
Phys. Rev. C 51, 2844 (1995)

Is large weak mixing in heavy nuclei consistent with atomic experiments?

V. F. Dmitriev, I. B. Khriplovich, and V. B. Telitsin
Phys. Rev. C 52, 1711 (1995)

Reply to ‘‘Is large weak mixing in heavy nuclei consistent with atomic experiments?’’

J. J. Szymanski, J. D. Bowman, M. Leuschner, B. A. Brown, and I. C. Girit
Phys. Rev. C 52, 1713 (1995)

Reply to ‘‘Comment on ‘E2 contribution to the p8+7Be Coulomb dissociation cross section’ ’’

K. Langanke and T. D. Shoppa
Phys. Rev. C 52, 1709 (1995)

Original Article

E2 contribution to the p8+7Be Coulomb dissociation cross section

K. Langanke and T. D. Shoppa
Phys. Rev. C 49, R1771(R) (1994)

References (Subscription Required)

Click to Expand
Issue

Vol. 52, Iss. 3 — September 1995

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×