Abstract
We calculate the magnetic quadrupole moment (MQM) of the deuteron at leading order in the systematic expansion provided by chiral effective field theory. We take into account parity (P) and time-reversal (T) violation which, at the quark–gluon level, results from the QCD vacuum angle and dimension-six operators that originate from physics beyond the Standard Model. We show that the deuteron MQM can be expressed in terms of five low-energy constants that appear in the P- and T-violating nuclear potential and electromagnetic current, four of which also contribute to the electric dipole moments of light nuclei. We conclude that the deuteron MQM has an enhanced sensitivity to the QCD vacuum angle and that its measurement would be complementary to the proposed measurements of light-nuclear EDMs.
Highlights
We take into account parity (P ) and time-reversal (T ) violation which, at the quark–gluon level, results from the QCD vacuum angle and dimension-six operators that originate from physics beyond the Standard Model
We show that the deuteron magnetic quadrupole moment (MQM) can be expressed in terms of five low-energy constants that appear in the P - and T -violating nuclear potential and electromagnetic current, four of which contribute to the electric dipole moments of light nuclei
We conclude that the deuteron MQM has an enhanced sensitivity to the QCD vacuum angle and that its measurement would be complementary to the proposed measurements of light-nuclear electric dipole moments (EDMs)
Summary
Deuteron magnetic quadrupole moment from chiral effective field theory Liu, C. -P.; de Vries, J.; Mereghetti, E.; Timmermans, R. Deuteron magnetic quadrupole moment from chiral effective field theory Liu, C. Document Version Publisher's PDF, known as Version of record. Citation for published version (APA): Liu, C. Deuteron magnetic quadrupole moment from chiral effective field theory. More information can be found on the University of Groningen website: https://www.rug.nl/library/open-access/self-archiving-pure/taverneamendment. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. For technical reasons the number of authors shown on this cover page is limited to 10 maximum
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