Unveiling dominant breakup pathways and new resonances in 11B: Implications for Beta-delayed proton emission, thermal neutron detection and cancer therapy

Unveiling dominant breakup pathways and new resonances in 11B: Implications for Beta-delayed proton emission, thermal neutron detection and cancer therapy | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Unveiling dominant breakup pathways and new resonances in 11 B: Implications for Beta-delayed proton emission, thermal neutron detection and cancer therapy Asim Pal, Satyaranjan Santra, Abhijit Baishya, Tanya Singh, Manoj Meher, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6811311/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract A high-precision measurement on the breakup of 11B has revealed new insights into the nuclear structure of 11B. We report, for the first time, angular distributions of resonance states in the α + 7Li and p + 10Be breakup channels, including the key 11.45 MeV state implicated in β−-delayed proton emission from 11Be. Our measurements reveal that this state emits nearly five times more protons than alpha particles. New evidence also points to previously unobserved cluster states at 17.31 MeV (decaying into d + 9Be) and 14.04 MeV (decaying into 3H + 8Be). Crucially, assuming the same 11.45 MeV state is populated in the nthermal + 10B → 11B∗ (Q = 11.45 MeV) reaction, relevant for boron neutron capture therapy (BNCT) and thermal neutron detection, our findings suggest that the p + 10Be breakup is the dominant charged-particle emission pathway, being five times more probable than the α + 7Li channel. This discovery challenges the conventional understanding of neutron detection and BNCT, with direct implications for accurate radiation dose assessment in cancer treatment. Physical sciences/Physics Physical sciences/Physics/Nuclear physics/Experimental nuclear physics Full Text Additional Declarations There is NO Competing Interest. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6811311","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":473910230,"identity":"cae04b5a-ee9a-490b-9859-b5ccf50b6cfe","order_by":0,"name":"Asim 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We report, for the first time, angular distributions of resonance states in the α + 7Li and p + 10Be breakup channels, including the key 11.45 MeV state implicated in β−-delayed proton emission from 11Be. Our measurements reveal that this state emits nearly five times more protons than alpha particles. New evidence also points to previously unobserved cluster states at 17.31 MeV (decaying into d + 9Be) and 14.04 MeV (decaying into 3H + 8Be). Crucially, assuming the same 11.45 MeV state is populated in the nthermal + 10B → 11B∗ (Q = 11.45 MeV) reaction, relevant for boron neutron capture therapy (BNCT) and thermal neutron detection, our findings suggest that\r\nthe p + 10Be breakup is the dominant charged-particle emission pathway, being five times more\r\nprobable than the α + 7Li channel. This discovery challenges the conventional understanding of\r\nneutron detection and BNCT, with direct implications for accurate radiation dose assessment in\r\ncancer treatment.","manuscriptTitle":"Unveiling dominant breakup pathways and new resonances in 11B: Implications for Beta-delayed proton emission, thermal neutron detection and cancer therapy","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-06-23 11:43:45","doi":"10.21203/rs.3.rs-6811311/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"953d1185-8769-4244-a8ed-69f439666866","owner":[],"postedDate":"June 23rd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":50451132,"name":"Physical sciences/Physics"},{"id":50451133,"name":"Physical sciences/Physics/Nuclear physics/Experimental nuclear physics"}],"tags":[],"updatedAt":"2025-08-07T22:20:10+00:00","versionOfRecord":[],"versionCreatedAt":"2025-06-23 11:43:45","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-6811311","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-6811311","identity":"rs-6811311","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}