Speaker
Arseniy Filin
(Ruhr University Bochum)
Description
We present a high-precision calculation of the deuteron, triton, $^3$He and $^4$He charge
form factors based on the latest two- and three-nucleon forces,
and charge density operators derived up through the fifth order in the chiral effective field theory.
We predict the values of the structure radius and the quadrupole
moment of the deuteron, the $^4$He charge radius, and the isoscalar combination
of the 3N charge radii $(r^2(^3\text{H}) + 2 r^2(^3\text{He}))/3$. A comprehensive and systematic
analysis of various sources of uncertainty in all our predictions is performed.
Using the predicted value for the deuteron structure radius together with the very accurate atomic data for the
difference of the deuteron and proton charge radii we extract the charge radius of the neutron.
Finally, using the predicted isoscalar combination of the 3N charge radii
and preliminary experimental data on the $^3$He charge radius we estimate the charge radius of the triton.
Primary authors
Andreas Nogga
(Forschungszentrum Jülich)
Arseniy Filin
(Ruhr University Bochum)
Christopher Körber
(Ruhr University Bochum)
Daniel Möller
(Ruhr University Bochum)
Evgeny Epelbaum
(Ruhr University Bochum)
Hermann Krebs
(Ruhr University Bochum)
Patrick Reinert
(Ruhr University Bochum)
Vadim Baru
(Ruhr University Bochum)
