Parity-violating three-nucleon interactions at low energies and large
Journal Article
·
· Physical Review. C
- Stetson Univ., DeLand, FL (United States); DOE/OSTI
The parity-violating (PV) nucleon-nucleon (NN) interaction in the three-nucleon system is investigated using pionless effective field theory (EFT(π/)). Here, this work shows that a next-to-leading order (NLO) PV three-body force is necessary, in contradiction with a previous claim. Including three-body P- to D-wave transitions, PV three-nucleon observables are calculated to higher energies than previously considered.Using the large-NC hierarchy of LECs, the sizes of the leading order (LO) in large-NC LECs are estimated using an experimental bound on a parity violating asymmetry in → pd scattering at Elab = 15 MeV and a measurement of → pp scattering at Elab = 13.6 MeV. Comparing the size of the resulting LO(O(NC)) in large-NC LECs to the N2LO(O(N– 1C)) in large-NC LEC g4(N–1C) shows they are roughly the same size, in contradiction with current large-NC counting.
- Research Organization:
- Duke Univ., Durham, NC (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Grant/Contract Number:
- FG02-05ER41368
- OSTI ID:
- 1609639
- Alternate ID(s):
- OSTI ID: 1511526
- Journal Information:
- Physical Review. C, Journal Name: Physical Review. C Journal Issue: 5 Vol. 99; ISSN PRVCAN; ISSN 2469-9985
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Parity- and Time-Reversal-Violating Nuclear Forces
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journal | July 2020 |
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