STI Publications - View Publication Form #16642
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Publication Information
| Title | Comparative study of 6He beta-decay based on different SRG-evolved chiral interactions | ||||
| Abstract | We report on a study of the Gamow-Teller matrix element contributing to 6He beta-decay with Similarity Renormalization Group (SRG) versions of momentum- and configuration-space two-nucleon interactions. These interactions are derived from two different formulations of chiral effective field theory (chiEFT)---without and with the explicit inclusion of $\Delta$-isobars. We consider evolution parameters $\Lambda_{\rm SRG}$ in the range between 1.2 and 2.0 fm^{-1} and, for the Delta-less case, also the unevolved (bare) interaction. The axial current contains one- and two-body terms, consistently derived at tree level (no loops) in the two distinct chiEFT formulations we have adopted here. The 6He and 6Li ground-state wave functions are obtained from hyperspherical-harmonics (HH) solutions of the nuclear many-body problem. In A=6 systems, the HH method is limited at present to treat only two-body interactions and non-SRG evolved currents. Our results exhibit a significant dependence on | ||||
| Author(s) | Alex Gnech, Laura Marcucci, Rocco Schiavilla  , Michele Viviani |
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| Publication Date | September 2021 | ||||
| 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 | 104 |
| Issue | |
| Page(s) | 035501 |
Attachments/Datasets/DOI Link
| Document(s) |
article_arXiv1.pdf
(STI Document)
2106.07439.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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