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Contribution of nuclear excitation electromagnetic form factors in C 12 and O 16 to the Coulomb sum rule

Journal Article · · Physical Review. C
 [1];  [2]
  1. University of Rochester, NY (United States)
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

We report on empirical parametrizations of longitudinal and transverse nuclear excitation electromagnetic form factors in 12C and 16O. We extract the contribution of nuclear excitations to the normalized inelastic Coulomb sum rule [SL(q)] as a function of momentum transfer q and find that it is significant (0.29 ± 0.030 at q = 0.22 GeV). The total contributions of nuclear excitations to SL(q) in 12C and 16O are found to be equal within uncertainties. Since the cross sections for nuclear excitations are significant, the radiative tails from nuclear excitations should be included in precise calculations of radiative corrections to quasielastic electron scattering at low q and deep-inelastic electron scattering at large energy transfers ν. The parametrizations also serve as a benchmark in testing theoretical modeling of cross sections for excitation of nuclear states in electron and neutrino interactions on nuclear targets at low energies.

Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0008475; AC05-06OR23177
OSTI ID:
1974573
Alternate ID(s):
OSTI ID: 2462748
OSTI ID: 2282769
Report Number(s):
JLAB-PHY--23-3737
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 5 Vol. 107; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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