{"id":3214,"date":"2024-07-04T14:07:06","date_gmt":"2024-07-04T05:07:06","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?post_type=seminar&#038;p=3214"},"modified":"2024-08-27T12:29:49","modified_gmt":"2024-08-27T03:29:49","slug":"practical-dirac-majorana-confusion-theorem-issues-and-applicability","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/","title":{"rendered":"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability"},"content":{"rendered":"<p><strong><span style=\"color: #333399\">&#8220;<\/span><\/strong><span style=\"font-size: 1rem;letter-spacing: 0.8px\">KMI Theory and E-lab joint seminar<\/span><strong style=\"font-size: 1rem;letter-spacing: 0.8px\"><span style=\"color: #333399\">&#8221; 16th July (Tue)\u00a0 16\uff1a00 &#8211;<\/span><\/strong><\/p>\n<ul>\n<li>Date: July 16th (Tue) 16:00 &#8211; 17:00<\/li>\n<li>Place: ES635<\/li>\n<li>Speaker: C.S. Kim (Department of Physics, Yonsei University, Korea)<\/li>\n<li>Title: Practical Dirac-Majorana Confusion Theorem: Issues and Applicability<\/li>\n<\/ul>\n<h2>Abstract<\/h2>\n<pre class=\"moz-quote-pre\">We inspect the model-independent study of practical Dirac Majorana confusion the\r\norem (pDMCT) \u2013 a wide spread belief that the difference between Dirac and Majorana \r\nneutrinos via  any kinematical observable would be practically impossible to determine \r\nbecause of the difference only being proportional to the square of neutrino mass \u2013\r\nin context of processes that have at least a neutrino antineutrino pair in their final state. \r\nWe scrutinize the domain of applicability of pDMCT and also highlight those aspects that \r\nare often misunderstood. We try to clarify some of the frequently used concepts that are \r\nused to assert pDMCT as a generic feature irrespective of the process, or observable,\r\nsuch as the existence of any analytic continuity between Dirac and Majorana neutrinos in \r\nthe limit $m_\\nu \\to 0$. In summary, we illustrate that pDMCT is not any fundamental \r\nproperty of neutrinos, instead,  it is a phenomenological feature of neutrino non-observation, \r\ndepending on models and processes.<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg\" alt=\"\" width=\"612\" height=\"792\" class=\"size-full wp-image-3217 alignleft\" srcset=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg 612w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1-232x300.jpg 232w\" sizes=\"(max-width: 612px) 100vw, 612px\" \/><\/pre>\n<p class=\"p3\">\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[53],"acf":{"s_now_accepting":true,"s_date_order":"2024-07-16 16:00:00","s_date_end":null,"s_date_text":"16:00 - 17:00","s_text":"C.S. Kim (Department of Physics, Yonsei University, Korea)","s_place":"ES635","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"","s_slide":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Practical Dirac-Majorana Confusion Theorem: Issues and Applicability - KMI - Nagoya University<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"&#8220;KMI Theory and E-lab joint seminar&#8221; 16th July (Tue)\u00a0 16\uff1a00 &#8211; Date: July 16th (Tue) 16:00 &#8211; 17:00 Place: ES635 Speaker: C.S. Kim (Department of Physics, Yonsei University, Korea) Title: Practical Dirac-Majorana Confusion Theorem: Issues and Applicability Abstract We inspect the model-independent study of practical Dirac Majorana confusion the orem (pDMCT) \u2013 a wide spread belief that the difference between Dirac and Majorana neutrinos via any kinematical observable would be practically impossible to determine because of the difference only being &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/\" \/>\n<meta property=\"og:site_name\" content=\"KMI - Nagoya University\" \/>\n<meta property=\"article:modified_time\" content=\"2024-08-27T03:29:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/\",\"name\":\"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability - KMI - Nagoya University\",\"isPartOf\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg\",\"datePublished\":\"2024-07-04T05:07:06+00:00\",\"dateModified\":\"2024-08-27T03:29:49+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#primaryimage\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg\",\"contentUrl\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg\",\"width\":612,\"height\":792},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Seminars\",\"item\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/\",\"name\":\"KMI - Nagoya University\",\"description\":\"Nagoya University: Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI)\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability - KMI - Nagoya University","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/","og_locale":"en_US","og_type":"article","og_title":"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability - KMI - Nagoya University","og_description":"&#8220;KMI Theory and E-lab joint seminar&#8221; 16th July (Tue)\u00a0 16\uff1a00 &#8211; Date: July 16th (Tue) 16:00 &#8211; 17:00 Place: ES635 Speaker: C.S. Kim (Department of Physics, Yonsei University, Korea) Title: Practical Dirac-Majorana Confusion Theorem: Issues and Applicability Abstract We inspect the model-independent study of practical Dirac Majorana confusion the orem (pDMCT) \u2013 a wide spread belief that the difference between Dirac and Majorana neutrinos via any kinematical observable would be practically impossible to determine because of the difference only being &hellip;","og_url":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/","og_site_name":"KMI - Nagoya University","article_modified_time":"2024-08-27T03:29:49+00:00","og_image":[{"url":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/","url":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/","name":"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability - KMI - Nagoya University","isPartOf":{"@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#primaryimage"},"image":{"@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#primaryimage"},"thumbnailUrl":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg","datePublished":"2024-07-04T05:07:06+00:00","dateModified":"2024-08-27T03:29:49+00:00","breadcrumb":{"@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#primaryimage","url":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg","contentUrl":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/07\/Lecture_cskim2024-1.jpg","width":612,"height":792},{"@type":"BreadcrumbList","@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3214\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/"},{"@type":"ListItem","position":2,"name":"Seminars","item":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/"},{"@type":"ListItem","position":3,"name":"Practical Dirac-Majorana Confusion Theorem: Issues and Applicability"}]},{"@type":"WebSite","@id":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website","url":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/","name":"KMI - Nagoya University","description":"Nagoya University: Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI)","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-json\/wp\/v2\/seminar\/3214"}],"collection":[{"href":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-json\/wp\/v2\/seminar"}],"about":[{"href":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-json\/wp\/v2\/types\/seminar"}],"wp:attachment":[{"href":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-json\/wp\/v2\/media?parent=3214"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-json\/wp\/v2\/tags?post=3214"},{"taxonomy":"seminar_category","embeddable":true,"href":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-json\/wp\/v2\/seminar_category?post=3214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}