The impact of quark many-body effects on exotic hadrons

The impact of quark many-body effects on exotic hadrons | 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 Research Article The impact of quark many-body effects on exotic hadrons Sachiko Takeuchi, Makoto Takizawa, Yasuhiro Yamaguchi, Atsushi Hosaka This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4002721/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 26 May, 2024 Read the published version in Few-Body Systems → Version 1 posted 7 You are reading this latest preprint version Abstract We investigate the exotic hadrons consisting of two light quarks and two heavy antiquarks, $(q\bar Q)$-$(q\bar Q)$. The spin-dependent term between quarks is known to give an attraction to the $ud$ spin-0 component in the isospin-0 $u\bar c d\bar c$ system, $T_{cc}$. However, the said component also gets a repulsion from the partial Pauli-blocking. By the dynamical calculation with a simplified quark model, we discuss that the competition of the two effects leads to a shallow bound state for $T_{cc}$, which is preferred from the experiment, and a deep bound state for $T_{bb}$. Exotic hadrons Tcc Quark model Quark interchange Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 26 May, 2024 Read the published version in Few-Body Systems → Version 1 posted Editorial decision: Revision requested 31 Mar, 2024 Reviews received at journal 11 Mar, 2024 Reviewers agreed at journal 08 Mar, 2024 Reviewers invited by journal 08 Mar, 2024 Editor assigned by journal 02 Mar, 2024 Submission checks completed at journal 02 Mar, 2024 First submitted to journal 01 Mar, 2024 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. 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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-4002721","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":275982569,"identity":"e3951fab-e12f-4493-bbd9-9d58194afc43","order_by":0,"name":"Sachiko Takeuchi","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA9ElEQVRIiWNgGAWjYJACxgYgYcDMfMAAJmKAWzEIMMO0sCWQqoWBh4BCGJBv4D/4cUbFYXlzdp4PBT/+HGbgbz/AUFyAR4vBAWZmyQ1nDhvubObdYNjbdphB4kwCg/EMfFqADpN82HY4weAw7wZjxobbDAw3GBiMefA6jJn558N/IC08D4wZ/txmkCekheEAM5vkxgawFgZjBrbbDAaEtBgcZjaznHEs3XDDYTYDoF/+8xieSWzA6xf59sbHN3tqrOUNzh9+ZvDjT5qc3PHDx4zxhRjQ93DABooYoJMY24zx6UDR/QDGeEysllEwCkbBKBgRAADUEUmkVNJdkQAAAABJRU5ErkJggg==","orcid":"","institution":"Japan College of Social Work","correspondingAuthor":true,"prefix":"","firstName":"Sachiko","middleName":"","lastName":"Takeuchi","suffix":""},{"id":275982570,"identity":"9fbded43-d470-4e3a-a838-0500d5258c32","order_by":1,"name":"Makoto Takizawa","email":"","orcid":"","institution":"Showa Pharmaceutical University","correspondingAuthor":false,"prefix":"","firstName":"Makoto","middleName":"","lastName":"Takizawa","suffix":""},{"id":275982571,"identity":"36f54425-8e3e-49e3-8448-eacc7d89b786","order_by":2,"name":"Yasuhiro Yamaguchi","email":"","orcid":"","institution":"Nagoya University","correspondingAuthor":false,"prefix":"","firstName":"Yasuhiro","middleName":"","lastName":"Yamaguchi","suffix":""},{"id":275982572,"identity":"d38692dd-737c-4fd3-84f9-c65fde6c7828","order_by":3,"name":"Atsushi Hosaka","email":"","orcid":"","institution":"Research Center for Nuclear Physics, Osaka University","correspondingAuthor":false,"prefix":"","firstName":"Atsushi","middleName":"","lastName":"Hosaka","suffix":""}],"badges":[],"createdAt":"2024-03-01 09:16:32","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4002721/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4002721/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s00601-024-01932-2","type":"published","date":"2024-05-26T09:48:14+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":57157044,"identity":"e2155400-f1ab-40ca-a721-197bae931f2f","added_by":"auto","created_at":"2024-05-26 09:48:23","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":360350,"visible":true,"origin":"","legend":"","description":"","filename":"sent20240301.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4002721/v1_covered_76d85607-3124-4481-acdc-b12e21b0e103.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"The impact of quark many-body effects on exotic hadrons","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"few-body-systems","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"fbsy","sideBox":"Learn more about [Few-Body Systems](http://link.springer.com/journal/601)","snPcode":"601","submissionUrl":"https://submission.nature.com/new-submission/601/3","title":"Few-Body Systems","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Exotic hadrons, Tcc, Quark model, Quark interchange","lastPublishedDoi":"10.21203/rs.3.rs-4002721/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4002721/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"We investigate the exotic hadrons consisting of two light quarks and two heavy antiquarks, $(q\\bar Q)$-$(q\\bar Q)$. 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