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Ab Initio Computation of the Longitudinal Response Function in 40Ca

Journal Article · · Physical Review Letters
 [1];  [1];  [2];  [3]
  1. Johannes Gutenberg Univ., Mainz (Germany). Inst. fuer Kernphysik, PRISMA+ Cluster of Excellence
  2. Johannes Gutenberg Univ., Mainz (Germany). Inst. fuer Kernphysik, PRISMA+ Cluster of Excellence; Johannes Gutenberg Univ., Mainz (Germany). Helmholtz-Inst. Mainz
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
+ Show Author Affiliations
In this work, we present a consistent ab initio computation of the longitudinal response function RL in 40Ca using the coupled-cluster and Lorentz integral transform methods starting from chiral nucleon-nucleon and three-nucleon interactions. We validate our approach by comparing our results for RL in 4He and the Coulomb sum rule in 40Ca against experimental data and other calculations. For RL in 40Ca we obtain a very good agreement with experiment in the quasielastic peak up to intermediate momentum transfers, and we find that final state interactions are essential for an accurate description of the data. This work presents a milestone towards ab initio computations of neutrino-nucleus cross sections relevant for experimental long-baseline neutrino programs.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-00OR22725; SC0018223
OSTI ID:
1817486
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 7 Vol. 127; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ab initio calculations
electrons
electroweak interactions in nuclear physics
neutrinos
nuclear many-body theory