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Title: Comparison of the electromagnetic responses of C 12 obtained from the Green's function Monte Carlo and spectral function approaches

Here, the electromagnetic responses of carbon obtained from the Green's function Monte Carlo and spectral function approaches using the same dynamical input are compared in the kinematical region corresponding to momentum transfer in the range 300–570 MeV. The results of our analysis, aimed at pinning down the limits of applicability of the approximations involved in the two schemes, indicate that the factorization ansatz underlying the spectral function formalism provides remarkably accurate results down to momentum transfer as low as 300 MeV. On the other hand, it appears that at 570 MeV relativistic corrections to the electromagnetic current not included in the Monte Carlo calculations may play a significant role in the transverse channel.
Authors:
 [1] ;  [2] ;  [3]
  1. "Sapienza" Univ., Roma (Italy); Institutos de Investigacion de Paterna, Valencia (Spain)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. "Sapienza" Univ., Roma (Italy)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 94; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); Spanish Ministerio de Economia y Competitividad (MINECO)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1416016
Alternate Identifier(s):
OSTI ID: 1337443