The longitudinal response function of the deuteron in chiral effective field theory

Abstract

We use chiral effective field theory (EFT) to make predictions for the longitudinal electromagnetic response function of the deuteron, f_L, which is measured in d(e,e'N) reactions. In this case the impulse approximation gives the full chiral EFT result up to corrections that are of O(P^4) relative to leading. By varying the cutoff in the chiral EFT calculations between 0.6 and 1 GeV we conclude that the calculation is accurate to better than 10 % for values of q^2 within 4 fm^{-2} of the quasi-free peak, up to final-state energies E_{np}=60 MeV. In these regions chiral EFT is in reasonable agreement with predictions for f_L obtained using the Bonn potential. We also find good agreement with existing experimental data on f_L, albeit in a more restricted kinematic domain.

33 pages, 10 figures. Accepted for publication in EPJA, with a few further corrections

References in corpus (15)

• Dispersion analysis of the nucleon form factors including meson continua
• Electromagnetic Currents and Magnetic Moments in $\chi$EFT
• Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation
• Quantum Monte Carlo calculations of electromagnetic moments and transitions in A <= 9 nuclei with meson-exchange currents derived from chiral effective field theory
• Electromagnetic structure of A=2 and 3 nuclei in chiral effective field theory
• Electromagnetic two-body currents of one- and two-pion range
• Subtractive renormalization of the NN scattering amplitude at leading order in chiral effective theory
• Subtractive renormalization of the NN interaction in chiral effective theory up to next-to-next-to-leading order: S waves
• Thermal neutron captures on $d$ and ${}^3$He
• Chiral effective theory predictions for deuteron form factor ratios at low Q^2
• A new calculation for D(e,e'p)n at GeV energies
• The magnetic form factor of the deuteron in chiral effective field theory
• Signatures of the chiral two-pion exchange electromagnetic currents in the 2H and 3He photodisintegration reactions
• Pion-less Effective Field Theory on Low-Energy Deuteron Electro-Disintegration
• The f_LT Response Function of D(e,e'p)n at Q^2=0.33(GeV/c)^2

Cited by in corpus (2)

• Scale dependence of deuteron electrodisintegration
• Deuteron electrodisintegration with unitarily evolved potentials