{"id":12520,"date":"2022-12-12T12:00:26","date_gmt":"2022-12-12T11:00:26","guid":{"rendered":"https:\/\/www.pi.infn.it\/?p=12520"},"modified":"2022-12-12T12:00:28","modified_gmt":"2022-12-12T11:00:28","slug":"lattice-qcd-computation-of-the-muon-magnetic-moment-prof-szabo-kalman-university-of-wuppertal","status":"publish","type":"post","link":"https:\/\/www.pi.infn.it\/?p=12520","title":{"rendered":"Lattice QCD computation of the muon magnetic moment (Prof. Szabo KALMAN, University of Wuppertal)"},"content":{"rendered":"\n<p><strong>Abstract<\/strong>:&nbsp;The muon is an elementary particle, a short-lived cousin of the&nbsp;electron. Since about 20 years the calculation of its magnetic moment&nbsp;disagrees with its measurement, indicating that a not-yet-known particle&nbsp;or force might be influencing the muon. An experiment at the Fermi&nbsp;National Accelerator Laboratory (FNAL,US) confirmed this puzzling&nbsp;discrepancy with an announcement in April 2021. The event received&nbsp;significant media attention.&nbsp;<br><\/p>\n\n\n\n<p>At the same time our group published a new ab-inito calculation, based&nbsp;on lattice formulation of quantum chromodynamics (lattice QCD), which&nbsp;challenged previous computations and brought the theoretical prediction&nbsp;closer to the experimental value. According to this result, no new&nbsp;forces or particles are neccessary to explain the FNAL and previous&nbsp;measurements.<br><br>Currently, the question if there is any new physics in the muon magnetic&nbsp;moment, is open. Since 2021 several new independent lattice QCD&nbsp;computations have appeared, there are updates of the old style theory&nbsp;approach, and also comparisons of the two approaches. In the meantime&nbsp;the FNAL experiment keeps on gathering new data.<br><br>The talk will give a review of these efforts with the main focus on our&nbsp;original lattice computation.<br>Il seminario si terr\u00e0 in presenza nella sala riunioni 250 e via zoom<strong>&nbsp;<\/strong>al seguente indirizzo:&nbsp; <a href=\"https:\/\/infn-it.zoom.us\/j\/84261721878?pwd=MDZNaGdBUlcvUUJXa2phSHZVZk5sdz09\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/infn-it.zoom.us\/j\/84261721878?pwd=MDZNaGdBUlcvUUJXa2phSHZVZk5sdz09\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/infn-it.zoom.us\/j\/84261721878?pwd=MDZNaGdBUlcvUUJXa2phSHZVZk5sdz09<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract:&nbsp;The muon is an elementary particle, a short-lived cousin of the&nbsp;electron. Since about 20 years the calculation of its magnetic moment&nbsp;disagrees with its measurement, indicating that a not-yet-known particle&nbsp;or force might be influencing the muon. An experiment at the Fermi&nbsp;National Accelerator Laboratory (FNAL,US) confirmed this puzzling&nbsp;discrepancy with an announcement in April 2021. The event received&nbsp;significant [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":12521,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_links_to":"","_links_to_target":""},"categories":[8],"tags":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-14 06:38:45","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category"},"_links":{"self":[{"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=\/wp\/v2\/posts\/12520"}],"collection":[{"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12520"}],"version-history":[{"count":1,"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=\/wp\/v2\/posts\/12520\/revisions"}],"predecessor-version":[{"id":12522,"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=\/wp\/v2\/posts\/12520\/revisions\/12522"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=\/wp\/v2\/media\/12521"}],"wp:attachment":[{"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pi.infn.it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}