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SUMMARY:Continuous Renormalization Group Beta Function in Four-Flavor QCD
DTSTART;VALUE=DATE-TIME:20261011T063000Z
DTEND;VALUE=DATE-TIME:20261011T065000Z
DTSTAMP;VALUE=DATE-TIME:20261005T002305Z
UID:indico-contribution-2842@indico.itp.ac.cn
DESCRIPTION:Speakers: 雪莹 韩 (SJTU\, Uni. Siegen)\nThe renormalization
  group beta function encodes how the strength of the strong interaction ch
 anges with energy scale\, connecting asymptotic freedom at high energies t
 o the onset of nonperturbative dynamics at low energies. We study the beta
  function of four-flavor QCD using the continuous gradient-flow approach\,
  which provides a nonperturbative definition of the running coupling and i
 ts scale evolution. Our calculation follows the running from the perturbat
 ive regime toward stronger coupling\, with controlled continuum and infini
 te-volume extrapolations. This provides a first-principles view of the tra
 nsition between perturbative and nonperturbative QCD dynamics in a theory 
 with four dynamical sea-quark flavors.\n\nhttps://indico.itp.ac.cn/event/4
 37/contributions/2842/
LOCATION:会议楼2 CXII102
URL:https://indico.itp.ac.cn/event/437/contributions/2842/
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