{"207341":{"#nid":"207341","#data":{"type":"event","title":"Astrophysics and particle physics with cosmic-ray electrons and positrons","body":[{"value":"\u003Ch6\u003ESchool of Physics Center for Relativistic Astrophysics Seminar: Presenting Justin Vandenbroucke, Stanford University\u003C\/h6\u003E\u003Cp\u003ECosmic rays are predominantly nuclei, in particular protons. \u0026nbsp;However, the less abundant cosmic-ray electrons and positrons are also important probes of open questions in astrophysics and particle physics. \u0026nbsp;The Fermi Gamma Ray Space Telescope, designed to study the high-energy universe with gamma rays, is also an excellent electron and positron detector. \u0026nbsp;Ground-based imaging atmospheric Cherenkov telescopes have also measured cosmic-ray electrons and positrons up to several TeV. \u0026nbsp;PAMELA, Fermi, and AMS have discovered a surprising excess of positrons between 10 GeV and 350 GeV. \u0026nbsp;I will describe these measurements and their implications for astrophysics and particle physics, as well as prospects for future measurements.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Astrophysics and particle physics with cosmic-ray electrons and positrons"}],"uid":"27664","created_gmt":"2013-04-17 15:56:08","changed_gmt":"2016-10-08 02:03:21","author":"Alison Morain","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2013-04-25T16:00:00-04:00","event_time_end":"2013-04-25T17:00:00-04:00","event_time_end_last":"2013-04-25T17:00:00-04:00","gmt_time_start":"2013-04-25 20:00:00","gmt_time_end":"2013-04-25 21:00:00","gmt_time_end_last":"2013-04-25 21:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"126011","name":"School of Physics"}],"categories":[],"keywords":[{"id":"64351","name":"cosmic-ray electrons and positrons"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:alison.morain@physics.gatech.edu\u0022\u003Ealison.morain@physics.gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}