Comparison of the electromagnetic responses of C12 obtained from the Green's function Monte Carlo and spectral function approaches

Rocco, Noemi; Lovato, Alessandro; Benhar, Omar

doi:10.1103/PhysRevC.94.065501

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

Journal Article · Fri Dec 23 00:00:00 EST 2016 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.94.065501· OSTI ID:1416016

Rocco, Noemi ^[1]; Lovato, Alessandro ^[2]; Benhar, Omar ^[3]

"Sapienza" Univ., Roma (Italy); Institutos de Investigacion de Paterna, Valencia (Spain)
Argonne National Lab. (ANL), Argonne, IL (United States)
"Sapienza" Univ., Roma (Italy)

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.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); Spanish Ministerio de Economia y Competitividad (MINECO)

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1416016

Alternate ID(s):: OSTI ID: 1337443

Journal Information:: Physical Review C, Vol. 94, Issue 6; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 10 works

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