STI Publications - View Publication Form #16282
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Publication Information
| Title | Chiral Effective Field Theory Calculations of Weak Transitions in Light Nuclei | ||||
| Abstract | We report Quantum Monte Carlo calculations of weak transitions in $A\leq 10$ nuclei, based on the Norfolk two- and three-nucleon chiral interactions, and associated one- and two-body axial currents. We find that the contribution from two-body currents is at the 2--3\% level, with the exception of matrix elements entering the rates of $^8$Li and $^8$B beta decays to the first excited state of $^8$Be. These matrix elements are suppressed in impulse approximation based on the (leading order) Gamow Teller transition operator alone; two-body currents provide a $20$--$30\%$ correction, which is, however, insufficient to bring theory in agreement with experimental data. For the other transitions, the agreement with the data is satisfactory, and the results exhibit a negligible to mild model dependence when different combinations of Norfolk interactions are utilized to construct the nuclear wave functions. We report a complete study of two-body weak transition densities whic | ||||
| Author(s) | G. King, Lorenzo Andreoli, Saori Pastore, Maria Piarulli, Rocco Schiavilla, Robert Wiringa, J. Carlson, Stefano Gandolfi | ||||
| Publication Date | August 2020 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review C |
| Refereed | Yes |
| Volume | 102 |
| Issue | |
| Page(s) | 025501 |
Attachments/Datasets/DOI Link
| Document(s) |
betadelta_v15.pdf
(STI Document)
2004.05263.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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