{"id":945,"date":"2017-06-23T09:00:17","date_gmt":"2017-06-23T07:00:17","guid":{"rendered":"https:\/\/web.infn.it\/aperitiviscientifici\/?p=945"},"modified":"2019-10-02T19:34:14","modified_gmt":"2019-10-02T17:34:14","slug":"measuring-the-leading-hadronic-contribution-to-the-muon-g-2-via-space-like-data","status":"publish","type":"post","link":"https:\/\/web.infn.it\/aperitiviscientifici\/2017\/06\/23\/measuring-the-leading-hadronic-contribution-to-the-muon-g-2-via-space-like-data\/","title":{"rendered":"Measuring the leading hadronic contribution to the muon g-2 via space-like data"},"content":{"rendered":"\t\t
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Umberto Marconi (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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The precision measurement of the anomalous magnetic moment g-2 of the muon\u00a0presently exhibits a 3.5 deviation between theory and experiments. In the next few years the anomalous magnetic moment will be measured with higher precision (0.14 ppm) at Fermilab and J-PARC. Theoretical predictions are limited instead by the uncertainty on the leading order hadronic contribution to the g-2 due to the non perturbative QCD regime involved at this scale.<\/span><\/p>

We have proposed a novel approach to determine the hadron leading contribution with space-like data, by means of a very precise measurement of the elastic scattering of 150 GeV muons (currently available at CERN North area) on atomic electrons of a low-Z target.<\/p>

On this basis one can determine the hadronic shift of the effective electromagnetic coupling and the hadronic contribution to the g-2 of the muon. The direct measurement of the hadronic leading contribution in the space-like region will provide an independent determination competitive with the time-like dispersive approach, and will consolidate the theoretical prediction of the muon g-2 in the Standard Model. It will allow therefore a rmer interpretation of the measurements of the future muon g-2 experiments at Fermilab and J-PARC<\/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":"

Umberto Marconi (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-945","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\/945","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=945"}],"version-history":[{"count":3,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/posts\/945\/revisions"}],"predecessor-version":[{"id":954,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/posts\/945\/revisions\/954"}],"wp:attachment":[{"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/media?parent=945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/categories?post=945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/web.infn.it\/aperitiviscientifici\/wp-json\/wp\/v2\/tags?post=945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}