Charge-Exchange Reactions Accompanied by a Single $π^+$ Production in Medium-Energy Heavy-Ion Collisions

[2607.19924] Charge-Exchange Reactions Accompanied by a Single $π^+$ Production in Medium-Energy Heavy-Ion Collisions Skip to main content Search Submit Donate Log in Nuclear Theory arXiv:2607.19924 (nucl-th) [Submitted on 22 Jul 2026] Title: Charge-Exchange Reactions Accompanied by a Single $π^+$ Production in Medium-Energy Heavy-Ion Collisions Authors: Xiao-lei Chen , Jin-yu Yang , Shi-kang Dong , Bao-wei Ding , Bi-tao Hu , Xi-yu Qiu View PDF HTML (experimental) Abstract: Heavy-ion charge-exchange (CE) reactions provide a sensitive probe of isospin dynamics in nuclear collisions. We investigate the reaction $^{12}\mathrm{C}(^{12}\mathrm{C},\,^{12}\mathrm{N}\,\pi^{+})\,^{12}\mathrm{Be}$ at 400--600 A MeV within the ultra-relativistic quantum molecular dynamics model combined with a phase-space coalescence approach. This reaction represents a nontrivial CE channel accompanied by a single $\pi^+$ production in heavy-ion collisions, extending previous studies from lepton-induced to hadronic systems. The $^{12}\mathrm{N}$ fragment is formed via nucleon and meson exchange, whereas $\pi^+$ production is primarily governed by $\Delta$ resonance excitation and decay, enabling simultaneous investigations of CE processes and $\Delta$-induced pion production within the same reaction system. We calculate the reaction cross section and analyze the four-momentum distributions of $^{12}\mathrm{N}$ and $\pi^+$. Characteristic phase-space features reflect different production mechanisms and provide guidance for future experimental designs. Additionally, this reaction may serve as a potential pathway for rare-isotope production. Comments: 26 pages, 21 figures. To be published in Chinese Physics C Subjects: Nuclear Theory (nucl-th) Cite as: arXiv:2607.19924 [nucl-th] (or arXiv:2607.19924v1 [nucl-th] for this version) https://doi.org/10.48550/arXiv.2607.19924 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Chin. Phys. C 50, 114101 (2026) Related DOI : https://doi.org/10.1088/1674-1137/ae9050 Focus to learn more DOI(s) linking to related resources Submission history From: Xiaolei Chen [ view email ] [v1] Wed, 22 Jul 2026 08:58:34 UTC (1,368 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: nucl-th < prev | next > new | recent | 2026-07 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? ) 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)

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