{"id":949,"date":"2017-06-16T09:00:55","date_gmt":"2017-06-16T07:00:55","guid":{"rendered":"https:\/\/web.infn.it\/aperitiviscientifici\/?p=949"},"modified":"2019-10-02T19:33:17","modified_gmt":"2019-10-02T17:33:17","slug":"first-dark-matter-search-results-from-the-xenon1t-experiment","status":"publish","type":"post","link":"https:\/\/web.infn.it\/aperitiviscientifici\/2017\/06\/16\/first-dark-matter-search-results-from-the-xenon1t-experiment\/","title":{"rendered":"First Dark Matter Search Results from the XENON1T Experiment"},"content":{"rendered":"\t\t
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Marco Garbini (INFN Bologna)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n\t\t\t\t\tIndico<\/a>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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We report the first dark matter search results from XENON1T, a \u223c2000 kg dual-phase\u00a0 xenon time projection chamber in operation at the Laboratori Nazionali del Gran Sasso in Italy, the first ton-scale detector of this kind.\u00a0<\/p>

The blinded search used 34.2 live days of data acquired between November 2016 and January 2017. Inside the (1042\u00b112) kg fiducial mass and in the [5, 40] keVnr energy range of interest for WIMP dark matter searches, the electronic recoil background was (1.93\u00b10.25)\u00d710^\u22124 events\/(kg \u00d7 day \u00d7 keVee), the lowest ever achieved in a dark matter detector.\u00a0<\/p>

A profile likelihood analysis shows that the data is consistent with the background-only hypothesis. We derive the most stringent exclusion limits on the spin-independent WIMP-nucleon interaction cross section for WIMP masses above 10 GeV\/c2, with a minimum of 7.7 \u00d710^\u221247 cm2 for 35-GeV\/c2 WIMPs at 90% confidence level.<\/p>

In the full nominal 2 t \u00d7 y exposure, we expect to reach with XENON1T a sensitivity of 1.6 \u00d7\u00a010^\u221247 cm2.\u00a0<\/span><\/p>

We will also present the future upgrade of the detector, XENONnT, with increased active mass and lower background, to foresee another order of magnitude improvement in sensitivity by 2023.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Marco Garbini (INFN Bologna)
\nIndico<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[21,14],"tags":[],"class_list":["post-949","post","type-post","status-publish","format-standard","hentry","category-2016-2017","category-past-seminars"],"_links":{"self":[{"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/posts\/949","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/comments?post=949"}],"version-history":[{"count":3,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/posts\/949\/revisions"}],"predecessor-version":[{"id":953,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/posts\/949\/revisions\/953"}],"wp:attachment":[{"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/media?parent=949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/categories?post=949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/tags?post=949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}