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Title: Electron scattering on A = 3 nuclei from quantum Monte Carlo based approaches

Journal Article · · Physical Review. C
ORCiD logo [1];  [2];  [3];  [1];  [4];  [5]
  1. Washington Univ., St. Louis, MO (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States); Istituto Nazionale di Fisica Nucleare (INFN), Trento (Italy)
  4. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)

We perform first-principle calculations of electron-nucleus scattering on 3He and 3H using the Green's function Monte Carlo method and two approaches based on the factorization of the final hadronic state: the spectral-function formalism and the short-time approximation. These three methods are benchmarked among each other and compared to the experimental data for the longitudinal and transverse electromagnetic response functions of 3He, and the inclusive cross sections of both 3He and 3H. Since these three approaches are based on the same description of nuclear dynamics of the initial target state, comparing their results enables a precise quantification of the uncertainties inherent to factorization schemes. At sufficiently large values of the momentum transfer, we find an excellent agreement of the Green's function Monte Carlo calculation with experimental data and with both the spectral-function formalism and the short-time approximation. Here, we also analyze the relevance of relativistic effects, whose inclusion becomes crucial to explain data at high momentum and energy transfer.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357; AC52-06NA25396; SC0013617; AC02-07CH11359
OSTI ID:
1840898
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 1 Vol. 105; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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