transverse response function from coupled-cluster theory
- Mainz U., Inst. Kernphys.
- Oak Ridge; Mainz U., Inst. Kernphys.
- Mainz U., Inst. Kernphys.; Helmholtz Inst., Mainz
- Oak Ridge; Tennessee U.
We present calculations of the transverse response function obtained from coupled-cluster theory used in conjunction with the Lorentz integral transform method. We employ nuclear forces derived at next-to-next-to leading order in chiral effective field theory with and without degrees of freedom. We first benchmark this approach on the nucleus and compare both the transverse sum rule and the response function to earlier calculations based on different methods. As expected from the power counting of the chiral expansion of electromagnetic currents and from previous studies, our results retaining only one-body term underestimate the experimental data for by about . However, when the method is applied to at the same order of the expansion, response functions do not lack strength and agree well with the world electron scattering data. We discuss various sources of theoretical uncertainties and comment on the comparison of our results with the available experiments.
- Research Organization:
- Mainz U., Inst. Kernphys.; Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Helmholtz Inst., Mainz; Tennessee U.
- Sponsoring Organization:
- US Department of Energy
- DOE Contract Number:
- AC02-07CH11359; 89243024CSC000002
- OSTI ID:
- 2282465
- Report Number(s):
- FERMILAB-PUB-23-648-V; oai:inspirehep.net:2706440; arXiv:2310.03109
- Journal Information:
- Phys.Rev.C, Journal Name: Phys.Rev.C Journal Issue: 2 Vol. 109
- Country of Publication:
- United States
- Language:
- English
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