Electronic Resource
Springer
The European physical journal
342 (1992), S. 343-357
ISSN:
1434-601X
Keywords:
24.90.+d
;
14.20.Gk
;
03.65.Sq
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We present a semiclassical approach of the Δ self-energy. We show that the in-medium corrections of the Δ width issued from the Pauli blocking and the coupling to the 2N-1h continuum are in good agreement with the previous approaches and particularly with the quantum Δ-h model even for light nuclei. We separate out the different sources of the imaginary part of the self-energy. The predominant corrections come from two antagonistic origins: the Pauli blocking and the contribution to the two-nucleon emission channel, the latter being model dependent. We further show that the non-diagonal spin matrix elements of the self-energy, generated by its tensor component, are mostly due to the Pauli blocking.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01291518
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