{ "132744-21871673": { "datetime_modified":"20250213T112915", "datetime_start":"20250219T150000", "datetime_end":"20250219T160000", "has_end_time":1, "date_start":"2025-02-19", "date_end":"2025-02-19", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Department Colloquium | Laser Spectroscopy of a Nucleus", "occurrence_title":"", "combined_title":"Department Colloquium | Laser Spectroscopy of a Nucleus: Eric Hudson (UCLA)", "event_subtitle":"Eric Hudson (UCLA)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"In 1976 Kroger and Reich established the existence of a low-lying nuclear excited state in ^{229}Th through the spectroscopy of rays emitted following the decay of ^{233}U. The prospects of a laser-accessible nuclear transition touched off a flurry of proposals to utilize this apparently unique nuclear transition as a sensitive probe of both nuclear structure and chemical environment, to constrain physics beyond the Standard Model, and to construct a clock with unprecedented performance. Unfortunately, Kroger and Reich could only tell us that the transition energy was less than about 100 eV and therefore scientists have spent the intervening 48 years searching for the thorium nuclear transition. \r\n\r\nI\u2019ll describe our efforts over the last 16 years to construct the first thorium-doped crystals and their use to perform nuclear laser spectroscopy, resulting in a measurement of the nuclear transition energy as 8.355733(2)_{stat} (10)_{sys} eV in ^{229}Th:LiSrAlF_6 . I will also discuss recent work observing the nuclear transition in thin films of ^{229}ThF_4; ongoing work to understand and harness the effect of the crystalline host on the isomeric transition; and the next steps for using this transition to probe new physics and build better clocks. This work was funded by the NSF and ARO.", "occurrence_notes":null, "guid":"132744-21871673@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/132744", "building_id":"1000167", "building_name":"West Hall", "campus_maps_id":"163", "room":"340", "location_name":"West Hall", "has_livestream":0, "cost":"", "tags":["Science","Physics"], "website":"", "sponsors":[ { "group_name":"Department Colloquia", "group_id":"3804", "website":"" }, { "group_name":"Department of Physics", "group_id":"1965", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21871673 } , "131536-21868734": { "datetime_modified":"20250121T181532", "datetime_start":"20250219T150000", "datetime_end":"20250219T170000", "has_end_time":1, "date_start":"2025-02-19", "date_end":"2025-02-19", "time_start":"15:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"Designing Blackness", "occurrence_title":"", "combined_title":"Designing Blackness", "event_subtitle":"", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"Join us for Designing Blackness, a unique Black History Month workshop that bridges the worlds of gaming and diversity, equity, and inclusion (DEI). Led by Kishonna Gray, professor in the U-M School of Information and expert in digital culture and DEI representation in gaming, this session will dive into how Blackness is in gaming spaces. Participants will explore how gaming can serve as both a platform for expression and a tool for advancing DEI, gaining insights into the power of representation and the opportunities to shape inclusive digital worlds.\nThis workshop is designed for University of Michigan master\u2019s students, doctoral students, and postdoctoral fellows. For faculty and staff, please contact\u00a0rackhampdeworkshops@umich.edu\u00a0to see if we can accommodate your attendance.\nRegistration is required at https:\/\/myumi.ch\/AZneb.\nWe want to ensure full and equitable participation in our events. If an accommodation would promote your full participation in this event, please follow the registration link to indicate your accommodation requirements. Please let us know as soon as possible in order to have adequate time, preferably one week, to arrange for your requested accommodations or an effective alternative.", "occurrence_notes":null, "guid":"131536-21868734@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/131536", "building_id":"1000172", "building_name":"Rackham Graduate School (Horace H.)", "campus_maps_id":"71", "room":"", "location_name":"Rackham Graduate School (Horace H.)", "has_livestream":0, "cost":"", "tags":["Graduate Students","Diversity"], "website":"https:\/\/rackham.umich.edu\/event\/designing-blackness\/", "sponsors":[ { "group_name":"Rackham Graduate School", "group_id":"1187", "website":"https:\/\/www.facebook.com\/umichgradschool" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21868734 } , "132451-21870988": { "datetime_modified":"20250212T122737", "datetime_start":"20250219T150000", "datetime_end":"20250219T180000", "has_end_time":1, "date_start":"2025-02-19", "date_end":"2025-02-19", "time_start":"15:00:00", "time_end":"18:00:00", "time_zone":"America\/Detroit", "event_title":"Free Store by PBSL", "occurrence_title":"", "combined_title":"Free Store by PBSL", "event_subtitle":"", "event_type":"Social \/ Informal Gathering", "event_type_id":"19", "description":"Join the Planet Blue Student Leaders, and earn points for Zero Waste Week, at our Free Store featuring clothing, items, and more! Stay sustainable and bring home something new to you! Join us on the first floor of the Michigan Union in the Sophia B Jones room.", "occurrence_notes":null, "guid":"132451-21870988@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/132451", "building_id":"1000120", "building_name":"Michigan Union", "campus_maps_id":"191", "room":"Sophia B Jones", "location_name":"Michigan Union", "has_livestream":0, "cost":"", "tags":["planet blue","Student Org","Sustainability","Environment","Free","In Person"], "website":"https:\/\/www.instagram.com\/umich_pbsl\/", "sponsors":[ { "group_name":"Student Life Sustainability", "group_id":"4678", "website":"" }, { "group_name":"Planet Blue Student Leaders", "group_id":"3466", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/02\/event_132451_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/02\/event_132451_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2025\/02\/event_132451_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2025\/02\/event_132451_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2025\/02\/event_132451_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/02\/event_132451_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/02\/event_132451_original-1.png" }, "occurrence_count":1, "first_occurrence":21870988 } }