{"id":3072,"date":"2024-02-05T10:43:21","date_gmt":"2024-02-05T01:43:21","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?post_type=seminar&#038;p=3072"},"modified":"2024-08-28T12:38:30","modified_gmt":"2024-08-28T03:38:30","slug":"cosmic-antimatter-search-with-balloon-borne-liquid-argon-tpc-the-grams-experiment","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/","title":{"rendered":"Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment"},"content":{"rendered":"<h2>KMI colloquium<\/h2>\n<ul>\n<li>Date: 22nd Feb (THU) 17:00 &#8211;\u00a0<\/li>\n<li>Speaker: Kohei Yorita (Waseda University)<\/li>\n<li>Title: Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment<\/li>\n<li>Place: ES635&amp; ZOOM<\/li>\n<\/ul>\n<h2>Abstract:<\/h2>\n<p>This talk introduces the Gamma-Ray and Anti-Matter Survey (GRAMS) experiment, which aims to observe cosmic antiparticles and MeV gamma rays simultaneously by deploying a Liquid Argon Time Projection Chamber (LArTPC) on a balloon at high altitude. Particularly, the investigation of antideuterons in cosmic rays with rigidity below 1 GeV\/n is promising for exploring new phenomena, including dark matter, due to very low flux from secondary backgrounds. However, various challenges such as the development of LArTPC technology, establishment of safety operation on a balloon, and a detailed understanding of annihilation phenomena with Ar nuclei need to be addressed. Aiming for a long-duration flight at 38 km above the Antarctic in the 2020s, engineering flight in JAXA TARF was performed in summer 2023 and accelerator antiparticle beam tests have been proposed to the J-PARC. In this seminar, brief overview of antimatter survey, GRAMS project status and its future prospects will be presented.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1-212x300.png\" alt=\"\" width=\"212\" height=\"300\" class=\"alignnone size-medium wp-image-3073\" srcset=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1-212x300.png 212w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1-724x1024.png 724w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1-768x1086.png 768w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1-1086x1536.png 1086w, https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1-1448x2048.png 1448w\" sizes=\"(max-width: 212px) 100vw, 212px\" \/><\/p>\n","protected":false},"featured_media":3073,"template":"","tags":[153],"seminar_category":[55],"acf":{"s_now_accepting":false,"s_date_order":"2024-02-22 17:00:00","s_date_end":null,"s_date_text":"22nd Feb (THU) 17:00 - 18:00","s_text":"Kohei Yorita (Waseda University)","s_place":"ES635\uff06ZOOM","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>Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment - 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\/3072\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"KMI colloquium Date: 22nd Feb (THU) 17:00 &#8211;\u00a0 Speaker: Kohei Yorita (Waseda University) Title: Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment Place: ES635&amp; ZOOM Abstract: This talk introduces the Gamma-Ray and Anti-Matter Survey (GRAMS) experiment, which aims to observe cosmic antiparticles and MeV gamma rays simultaneously by deploying a Liquid Argon Time Projection Chamber (LArTPC) on a balloon at high altitude. Particularly, the investigation of antideuterons in cosmic rays with rigidity below 1 GeV\/n is &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/\" \/>\n<meta property=\"og:site_name\" content=\"KMI - Nagoya University\" \/>\n<meta property=\"article:modified_time\" content=\"2024-08-28T03:38:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2339\" \/>\n\t<meta property=\"og:image:height\" content=\"3309\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\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=\"2 minutes\" \/>\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\/3072\/\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/\",\"name\":\"Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment - 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\/3072\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1.png\",\"datePublished\":\"2024-02-05T01:43:21+00:00\",\"dateModified\":\"2024-08-28T03:38:30+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/#primaryimage\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1.png\",\"contentUrl\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/wp-content\/uploads\/sites\/2\/2024\/02\/Colloquim_KoheiYorita_20240222_v1.png\",\"width\":2339,\"height\":3309},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/3072\/#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\":\"Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment\"}]},{\"@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":"Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment - 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\/3072\/","og_locale":"en_US","og_type":"article","og_title":"Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment - KMI - Nagoya University","og_description":"KMI colloquium Date: 22nd Feb (THU) 17:00 &#8211;\u00a0 Speaker: Kohei Yorita (Waseda University) Title: Cosmic Antimatter Search with Balloon-Borne Liquid Argon TPC \u2013 The GRAMS Experiment Place: ES635&amp; ZOOM Abstract: This talk introduces the Gamma-Ray and Anti-Matter Survey (GRAMS) experiment, which aims to observe cosmic antiparticles and MeV gamma rays simultaneously by deploying a Liquid Argon Time Projection Chamber (LArTPC) on a balloon at high altitude. 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