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Title: Modern Rutherford Experiment: Tunneling of the Most Neutron-Rich Nucleus

Journal Article · · Physical Review Letters
; ; ; ; ; ;  [1];  [1];  [2];  [3];  [4];  [5]; ;  [6]
  1. GANIL, CEA/DSM-CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5 (France)
  2. Department of Nuclear Reactions, The Andrzej Soltan Institute for Nuclear Studies, ul. Hoza 69, PL-00-681 Warsaw (Poland)
  3. NSCL and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-1321 (United States)
  4. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064 (India)
  5. Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085 (India)
  6. Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400005 (India)

A modern variation of the Rutherford experiment to probe the tunneling of exotic nuclear matter from the measurement of the residues formed in the bombardment of {sup 197}Au by extremely neutron-rich {sup 8}He nuclei is presented. Using a novel off-beam technique the most precise and accurate measurements of fusion and neutron transfer involving reaccelerated unstable beams are reported. The results show unusual behavior of the tunneling of {sup 8}He compared to that for lighter helium isotopes, highlighting the role of the intrinsic structure of composite many-body quantum systems and pairing correlations.

OSTI ID:
21370880
Journal Information:
Physical Review Letters, Vol. 103, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.103.232701; (c) 2009 The American Physical Society; ISSN 0031-9007
Country of Publication:
United States
Language:
English