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Title: Characterization of vorticity in pygmy resonances and soft-dipole modes with two-nucleon transfer reactions

Journal Article · · European Physical Journal. A
 [1];  [2];  [3];  [4]
  1. Univ. of Copenhagen (Denmark); Univ. degli Studi di Milano (Italy); Lawrence Livermore National Laboratory
  2. Univ. of Seville (Spain)
  3. Michigan State Univ., East Lansing, MI (United States)
  4. Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy)

The properties of the two-quasiparticle-like soft E1-modes and Pygmy Dipole Resonances (PDR) have been and are systematically studied here with the help of inelastic and electromagnetic experiments which essentially probe the particle-hole components of these vibrations. It is demonstrated that further insight in their characterisation can be achieved with the help of two-nucleon transfer reactions, in particular concerning the particle-particle components of the modes, in terms of absolute differential cross sections which take properly into account successive and simultaneous transfer mechanisms corrected for non-orthogonality, able to reproduce the experimental findings at the 10% level. The process 9Li(t, p)11Li(1-) is discussed, and absolute cross sections predicted.

Research Organization:
Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
SC0013617
OSTI ID:
1598850
Alternate ID(s):
OSTI ID: 22854923
Journal Information:
European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 12 Vol. 55; ISSN 1434-6001
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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