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SUMMARY:Yoshitaka Hatta
DTSTART:20201019T180000Z
DTEND:20201019T190000Z
DTSTAMP:20260423T023008Z
UID:UKYhepth/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/UKYhepth/11/
 ">QCD trace anomaly and the proton mass problem</a>\nby Yoshitaka Hatta as
  part of Theoretical Physics Seminars (Kentucky)\n\n\nAbstract\nThe trace 
 anomaly of QCD is fundamentally important as it imparts mass to hadrons an
 d nuclei\, hence to the visible universe. In this talk\, I will introduce 
 two recent developments regarding the anomaly. In the first part\, I discu
 ss the decomposition of the trace anomaly into the quark and gluon parts. 
 This is a well-defined field theoretical problem that can be addressed in 
 perturbation theory. In the second part\, I will explain how to measure th
 e gluon condensate $\\lange P|F^{\\mu\\nu}F_{\\mu\\nu}|P\\rangle$\, which 
 constitutes the major part of the trace anomaly\, in near-threshold $J/\\p
 si$ production in electron-proton scattering. After giving a review of the
  existing theoretical approaches and the experimental situation\, I will e
 xplain our new approaches to both photo-production and lepto-production.\n
 \nPlease email allicsiva@uky.edu for zoom info if interested in attending\
 n
LOCATION:https://researchseminars.org/talk/UKYhepth/11/
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