WimPyC: an extension module of WimPyDD for the calculation of WIMP capture in celestial bodies

[2510.21185] WimPyC: an extension module of WimPyDD for the calculation of WIMP capture in celestial bodies Skip to main content Search Submit Donate Log in High Energy Physics - Phenomenology arXiv:2510.21185 (hep-ph) [Submitted on 24 Oct 2025 ( v1 ), last revised 28 Aug 2026 (this version, v2)] Title: WimPyC: an extension module of WimPyDD for the calculation of WIMP capture in celestial bodies Authors: Sunghyun Kang (CQUeST and Sogang U.), Stefano Scopel (CQUeST and Sogang U.), Gaurav Tomar (APJ Abdul Kalam Tech. U.) View PDF HTML (experimental) Abstract: We introduce WimPyC, a Python code for the calculation of the capture rate of Weakly Interacting Massive Particles (WIMPs) by celestial bodies through nuclear scattering in the optically thin regime. WimPyC is an extension of the WimPyDD code, that calculates WIMP-nucleus scattering signals in direct detection (DD) experiments, and allows to combine DD and capture in celestial bodies in virtually any scenario within the framework of Galilean-invariant non-relativistic effective theory (NREFT), including inelastic scattering, an arbitrary WIMP spin and a generic WIMP velocity distribution in the Galactic halo. WimPyDD and WimPyC are suitable for both top-down approaches, where the interaction operators of a high-energy physics model are matched to those of the NREFT, and to bottom-up studies, where the Wilson coefficients of the NREFT are explored in a model-independent way and/or where the velocity distribution is written in terms of a superposition of streams taken as free parameters. As in the case of WimPyDD WimPyC exploits the factorization of the three main components that enter in the calculation of the capture rate: i) the Wilson coefficients that encode the dependence of the signals on the ultraviolet completion of the effective theory; ii) a response function that depends on the nuclear physics; iii) the halo function that depends on the WIMP velocity distribution. In WimPyC these three components are calculated and stored separately for later interpolation and combined together only as the last step of the signal evaluation procedure. This makes the phenomenological study of the capture rate with WimPyC transparent and improves computational speed. Comments: 54 pages, 10 figures, 1 table. Updated to published version. WimPyC can be downloaded from this https URL Subjects: High Energy Physics - Phenomenology (hep-ph) ; Cosmology and Nongalactic Astrophysics (astro-ph.CO) Report number: CQUeST-2025-0764 Cite as: arXiv:2510.21185 [hep-ph] (or arXiv:2510.21185v2 [hep-ph] for this version) https://doi.org/10.48550/arXiv.2510.21185 Focus to learn more arXiv-issued DOI via DataCite Related DOI : https://doi.org/10.1016/j.cpc.2026.110359 Focus to learn more DOI(s) linking to related resources Submission history From: Stefano Scopel [ view email ] [v1] Fri, 24 Oct 2025 06:26:49 UTC (977 KB) [v2] Fri, 28 Aug 2026 06:47:47 UTC (973 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: hep-ph < prev | next > new | recent | 2025-10 Change to browse by: astro-ph astro-ph.CO References & Citations INSPIRE HEP SciX Google Scholar Semantic Scholar export BibTeX citation 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? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) 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. 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