Friday, May 31, 2013

1305.7049 (E. Mereghetti et al.)

Toroidal Quadrupole Form Factor of the Deuteron    [PDF]

E. Mereghetti, J. de Vries, R. G. E. Timmermans, U. van Kolck
We calculate the toroidal quadrupole moment and form factor of the deuteron, which violate time-reversal symmetry but conserve parity, at leading order in two-flavor chiral effective field theory with perturbative pion exchange. We take into account time-reversal and parity violation due to the QCD vacuum angle combined with parity violation resulting from the weak interaction in the Standard Model. We also consider time-reversal and parity violation that at the quark-gluon level results from effective dimension-six operators originating from physics beyond the Standard Model.
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