Elsevier

Physics Letters B

Volume 407, Issue 2, 28 August 1997, Pages 110-114
Physics Letters B

Isobaric analog state of 11Li

https://doi.org/10.1016/S0370-2693(97)00727-2Get rights and content

Abstract

The isobaric analog state (IAS) of the halo nucleus 11Li has been investigated using the charge exchange reaction 11Li(p,n)11Be in inverse kinematics at E(11Li) = 64A MeV. The IAS was observed in 11Be, for the first time, at an excitation energy of 21.16 ± 0.02 MeV with a width of 0.49 ± 0.07 MeV (FWHM). The unit cross section, distortion factor and effective N-N interaction associated with the Fermi transition are extracted. Coulomb displacement energy, decay width, reaction variables and their relation to the halo structure are discussed.

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The present work was partially supported by the Grant-In-Aid for Scientific Research of the Japan Ministry of Education, Science and Culture under the program numbers 0252005, 04452029, 04740141 and 06234213.

2

Present address: GSI, Planckstrasse 1, D-64291 Darmstadt, Germany.

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