BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:iCalendar-Ruby BEGIN:VEVENT CATEGORIES:Lectures & Presentations DESCRIPTION:INPP Seminar | The Proton Gluonic Gravitational Form Factors an d its Mass Radius\, Nov. 8\n\nThe Institute of Nuclear and Particle Physics Seminar series presents Zein-Eddine Meziani discussing "The Proton Gluonic Gravitational Form Factors and its Mass Radius" on Nov. 8 at 4 p.m.\n\n \n \nMeziani is from Argonne National Laboratory.\n\n \n\nIn-person seminars w ill be in Lindley 321. For remote seminars\, connection info for the video conference (TEAMS or ZOOM) and abstract of the talk will be communicated by email before the seminar. The emails are sent to the inpp-seminar mailing list. To be added to this mailing list\, contact Prakash.\n\n \n\nThe host is Julie Roche.\n\n \n\nAbstract: The proton is one of the main building bl ocks of all visible matter in the universe. Among its intrinsic properties are its electric charge\, mass\, and spin. These emerge from the complex dy namics of its fundamental constituents\, quarks\, and gluons\, described by the theory of quantum chromodynamics (QCD). Using electron scattering\, it s electric charge and spin\, shared among the quark constituents\, have bee n the topic of active investigation up to today. In contrast\, little is k nown about the proton inner mass density\, dominated by the energy carried by the gluons\, which are hard to access through electron scattering since gluons carry no electromagnetic charge. In this talk\, I will present recen t results of a measurement of the near-threshold J/psi photoproduction diff erential cross sections at Jefferson Lab. We determined the proton gluonic gravitational form factors and its mass radius from these cross sections. W e find a proton mass radius notably smaller than the electric charge radius . This work together with future planned experiments paves the way for a de eper understanding of the salient role of gluons in providing gravitational mass to visible matter. DTEND:20221108T220000Z DTSTAMP:20241123T032750Z DTSTART:20221108T210000Z GEO:39.326188;-82.101779 LOCATION:Lindley Hall\, 321 SEQUENCE:0 SUMMARY:INPP Seminar | The Proton Gluonic Gravitational Form Factors and it s Mass Radius\, Nov. 8 UID:tag:localist.com\,2008:EventInstance_40926980279512 URL:https://calendar.ohio.edu/event/inpp_seminar_nov_8 END:VEVENT END:VCALENDAR