{"id":928,"date":"2014-12-16T11:13:46","date_gmt":"2014-12-16T02:13:46","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/928\/"},"modified":"2014-12-16T11:13:46","modified_gmt":"2014-12-16T02:13:46","slug":"connection_between_astrophysics_and_collider_physics","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/928\/","title":{"rendered":"Connection between Astrophysics and Collider physics"},"content":{"rendered":"<p><span>Energy spectrum of cosmic rays is known to extend over 10^20eV. To understand their origin(s) and energetic phenomena\u00a0in the astrophysical objects is main target of the cosmic-ray physics. Because of the low number flux, high-energy cosmic\u00a0rays over 10^15eV are measured through atmospheric air showers. To interpret the observed information at the ground level\u00a0to the information of primary particles, we must rely on the Monte Carlo simulation of air shower development. In the simulation,\u00a0uncertainty of the hadronic interaction at such high energy is the major source of the uncertainty in the interpretation.<\/span><br \/><span>Difficulty\u00a0in modeling hadronic interaction is because soft interaction is essential in the air shower development that can not be described\u00a0by perturbative QCD. Many phenomenological models are proposed and they are intensively tested by using the data from LHC.<\/span><br \/><span>In this seminar, I will introduce recent problem in the cosmic-ray physics caused by the uncertainty of modeling and efforts to\u00a0improve them by using the LHC data.<\/span><\/p>\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[58],"acf":{"s_now_accepting":true,"s_date_order":"2014-12-10 17:30:00","s_date_end":null,"s_date_text":"","s_text":"Takashi Sako","s_place":"KMI Science Symposia (ES635)","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"<form mt:asset-id=\"865\" class=\"mt-enclosure mt-enclosure-image\" style=\"display: inline;\"><a href=\"\/eng\/seminar\/files\/images\/SakataSnow.jpg\">SakataSnow.jpg<\/a><\/form>","s_slide":"<form mt:asset-id=\"882\" class=\"mt-enclosure mt-enclosure-file\" style=\"display: inline;\"><a href=\"\/eng\/seminar\/topics_slide_sako.pdf\">topics_slide_sako.pdf<\/a><\/form>"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Connection between Astrophysics and Collider physics - 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\/928\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Connection between Astrophysics and Collider physics - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"Energy spectrum of cosmic rays is known to extend over 10^20eV. To understand their origin(s) and energetic phenomena\u00a0in the astrophysical objects is main target of the cosmic-ray physics. Because of the low number flux, high-energy cosmic\u00a0rays over 10^15eV are measured through atmospheric air showers. To interpret the observed information at the ground level\u00a0to the information of primary particles, we must rely on the Monte Carlo simulation of air shower development. In the simulation,\u00a0uncertainty of the hadronic interaction at such high &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/928\/\" \/>\n<meta property=\"og:site_name\" content=\"KMI - Nagoya University\" \/>\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\/928\/\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/928\/\",\"name\":\"Connection between Astrophysics and Collider physics - KMI - Nagoya University\",\"isPartOf\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website\"},\"datePublished\":\"2014-12-16T02:13:46+00:00\",\"dateModified\":\"2014-12-16T02:13:46+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/928\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/928\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/928\/#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\":\"Connection between Astrophysics and Collider physics\"}]},{\"@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":"Connection between Astrophysics and Collider physics - 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\/928\/","og_locale":"en_US","og_type":"article","og_title":"Connection between Astrophysics and Collider physics - KMI - Nagoya University","og_description":"Energy spectrum of cosmic rays is known to extend over 10^20eV. To understand their origin(s) and energetic phenomena\u00a0in the astrophysical objects is main target of the cosmic-ray physics. Because of the low number flux, high-energy cosmic\u00a0rays over 10^15eV are measured through atmospheric air showers. To interpret the observed information at the ground level\u00a0to the information of primary particles, we must rely on the Monte Carlo simulation of air shower development. 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