Elsevier

Physics Letters B

Volume 391, Issues 3–4, 16 January 1997, Pages 261-266
Physics Letters B

Experimental determination of the E2 component in the Coulomb dissociation of 8B☆

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Abstract

Angular distributions of the Coulomb dissociation of 8B in the field of 208Pb at Ein = 51.9 MeV/u were measured at 0° ⩽ θ8 ⩽ 10° and 0.5 ⩽ Erel ⩽ 2.25 MeV. The data were analyzed using a quantum mechanical method where E1, E2 and ℓ = 2 nuclear amplitudes are included. Although systematic effects could be large, the extracted E2 components appear to be considerably smaller than any theoretical predictions reported so far.

PACS

25.70.De
25.60.Gc
25.60.-t
26.65.+t

Keywords

Solar neutrino
Coulomb dissociation
Radioactive beam
E2 component
208Pb(8B,7Be p)208Pb
Angular distribution

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☆

This work was supported from The Ministry of Education, Science, Sports and Culture by Grant-In-Aid for Scientific Research on Priority Areas under the program number 05243103, and some travel expenses are supported in part by Grant-In-Aid for International Scientific Research (Joint Research) under the program number 06044205.

Copyright © 1997 Published by Elsevier B.V.