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SUMMARY:Poincare invariance in low-energy EFTs for QCD and its implication
s to long-distance QCD potentials via effective string theory
DTSTART;VALUE=DATE-TIME:20161116T060000Z
DTEND;VALUE=DATE-TIME:20161116T070000Z
DTSTAMP;VALUE=DATE-TIME:20190819T213634Z
UID:indico-event-93@cern.ch
DESCRIPTION:We use nonlinear field transformations for non-relativistic fi
elds to implement Poincare invariance in Non-Relativistic QCD (NRQCD) and
potential Non-Relativistic QCD (pNRQCD)\, and show how the Poincare alg
ebra is satisfied for these transformations\, which thereby gives compleme
ntary information on the Wilson coefficients. Upon the established constra
ints on the Wilson coefficients\, which are potentials terms especially in
pNRQCD\, we explore their analytic expressions for the physical system at
the long distance separation between a heavy quark and a heavy antiquark\
, via the framework of the effective string theory (EST)\, whose dynamical
degrees of freedom are the transversal vibration modes of a string connec
ting the quark and antiquark. Finally\, we discuss how the (dimensionful)
parameters that arise from the EST are reduced/simplified by using the Poi
ncare invariance in pNRQCD and NRQCD.\n\nhttps://indico.ibs.re.kr/event/93
/
LOCATION:
URL:https://indico.ibs.re.kr/event/93/
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