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Title: Electromagnetic structure of few-nucleon ground states

Journal Article · · Journal of Physics. G, Nuclear and Particle Physics
 [1];  [2];  [3];  [4];  [4];  [5];  [6];  [4];  [7]
  1. Univ. of Pisa (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy)
  2. College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Univ. of Lisbon (Portugal)
  4. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Old Dominion Univ., Norfolk, VA (United States)
  5. Univ. of Basel (Switzerland)
  6. Univ. of Evora (Portugal); Univ. of Lisbon (Portugal)
  7. Univ. of Pisa (Italy); INFN; Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy)

Experimental form factors of the hydrogen and helium isotopes, extracted from an up-to-date global analysis of cross sections and polarization observables measured in elastic electron scattering from these systems, are compared to predictions obtained in three different theoretical approaches: the first is based on realistic interactions and currents, including relativistic corrections (labeled as the conventional approach); the second relies on a chiral effective field theory description of the strong and electromagnetic interactions in nuclei (labeled ChiEFT); the third utilizes a fully relativistic treatment of nuclear dynamics as implemented in the covariant spectator theory (labeled CST). Furthermore, for momentum transfers below Q < 5 fm-1 there is satisfactory agreement between experimental data and theoretical results in all three approaches. Conversely, at Q > 5 fm-1, particularly in the case of the deuteron, a relativistic treatment of the dynamics, as is done in the CST, is necessary. The experimental data on the deuteron A structure function extend to Q ~ 12 fm-1, and the close agreement between these data and the CST results suggests that, even in this extreme kinematical regime, there is no evidence for new effects coming from quark and gluon degrees of freedom at short distances.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-06OR23177; HadronPhysics3 Grant No. 283286; PTDC/FIS/113940/2009
OSTI ID:
1235245
Report Number(s):
JLAB-THY-15-2030; DOE/OR/23177-3335; arXiv:1504.05063
Journal Information:
Journal of Physics. G, Nuclear and Particle Physics, Vol. 43, Issue 2; ISSN 0954-3899
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 41 works
Citation information provided by
Web of Science

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Cited By (15)

Nuclear Electromagnetic Currents to Fourth Order in Chiral Effective Field Theory journal May 2019
The low-energy structure of the nucleon–nucleon interaction: statistical versus systematic uncertainties journal October 2016
Exact restoration of Galilei invariance in density functional calculations with quantum Monte Carlo journal January 2020
Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review journal March 2017
Zemach moments and radii of H 2 , 3 and He 3 , 4 journal March 2019
Implication of the Proton-Deuteron Radiative Capture for Big Bang Nucleosynthesis journal March 2016
Nuclear structure from direct reactions with rare isotopes: observables, methods and highlights journal September 2016
Chiral electroweak currents in nuclei journal January 2017
Local Nucleon-Nucleon and Three-Nucleon Interactions Within Chiral Effective Field Theory journal January 2020
Variational calculation of the ground state of closed-shell nuclei up to A = 40 journal August 2017
Sensitivity of tensor and vector analyzing powers in elastic e-d scattering to modern local and nonlocal NN potentials journal June 2019
Deuteron electromagnetic structure functions and polarization properties in soft-wall AdS/QCD journal December 2016
Relativistic rank-one separable kernel for helium-3 charge form factor journal December 2020
Atomic Nuclei From Quantum Monte Carlo Calculations With Chiral EFT Interactions journal April 2020
Trinucleon form factors with relativistic multirankseparable kernels text January 2021

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