Low-energy neutrino responses for 71Ga by electron capture rates, charge exchange reactions and shell model calculations

[2504.11736] Low-energy neutrino responses for 71Ga by electron capture rates, charge exchange reactions and shell model calculations Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Nuclear Theory arXiv:2504.11736 (nucl-th) [Submitted on 16 Apr 2025] Title: Low-energy neutrino responses for 71Ga by electron capture rates, charge exchange reactions and shell model calculations Authors: Yoritaka Iwata , Hiroyasu Ejiri , Shahariar Sarkar View a PDF of the paper titled Low-energy neutrino responses for 71Ga by electron capture rates, charge exchange reactions and shell model calculations, by Yoritaka Iwata and 2 other authors View PDF HTML (experimental) Abstract: Weak Gamow-Teller (GT) responses for low-lying states in ${}^{71}\mathrm{Ga}$ are crucial for studying low-energy solar neutrinos and the Ga anomaly, i.e., the possible transition to the sterile state. The responses for the ground state, the first excited state, and the second excited state are evaluated for the first time using the experimental electron capture rates, the experimental charge exchange reaction (CER) rates corrected for the tensor-interaction effect and the theoretical interacting shell model (ISM) calculations. The contributions from the two excited states to the solar and ${}^{51}\mathrm{Cr}$ neutrinos are found to be $4.2 \pm 1.2\%$ of that for the ground state. This is slightly larger than the ISM values but little smaller than the CER values without corrections for the tensor interaction effect. The Ga anomaly is far beyond the uncertainty of the obtained nuclear responses. Comments: submitted Subjects: Nuclear Theory (nucl-th) ; High Energy Physics - Phenomenology (hep-ph); Nuclear Experiment (nucl-ex) Cite as: arXiv:2504.11736 [nucl-th] (or arXiv:2504.11736v1 [nucl-th] for this version) https://doi.org/10.48550/arXiv.2504.11736 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Phys. Rev. C 114 (2026) 024317 Related DOI : https://doi.org/10.1103/7cw1-f5dj Focus to learn more DOI(s) linking to related resources Submission history From: Yoritaka Iwata [ view email ] [v1] Wed, 16 Apr 2025 03:30:19 UTC (253 KB) Full-text links: Access Paper: View a PDF of the paper titled Low-energy neutrino responses for 71Ga by electron capture rates, charge exchange reactions and shell model calculations, by Yoritaka Iwata and 2 other authors View PDF HTML (experimental) TeX Source view license Current browse context: nucl-th < prev | next > new | recent | 2025-04 Change to browse by: hep-ph nucl-ex References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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