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SUMMARY:[Hybrid RBRC seminar] Chirality distribution inside baryons in QCD
_2
DTSTART;VALUE=DATE-TIME:20220714T163000Z
DTEND;VALUE=DATE-TIME:20220714T173000Z
DTSTAMP;VALUE=DATE-TIME:20221002T004800Z
UID:indico-event-16283@indico.bnl.gov
CONTACT:nmatsumot@bnl.gov
DESCRIPTION:Speakers: David Frenklakh\n\nThe relation between spin decompo
sition and topological structure of a nucleon is not yet fully understood.
With the motivation to clarify their connection we study an exactly solva
ble toy model: large N QCD in (1+1) dimensions. Through bosonization this
model is equivalent to the sine-Gordon model which admits topological kink
as a classical solution. The kink is identified with a baryon and we demo
nstrate how to construct a quantum state corresponding to this solution. T
his allows us to evaluate the matrix element of axial current over the bar
yon state exactly in our model. We are able to single out the topological
contribution to the baryon chirality. We observe that the non-trivial topo
logy of the baryon state leads to an enhancement of the chirality distribu
tion at small Bjorken x.\n\nhttps://indico.bnl.gov/event/16283/
LOCATION:2-160
URL:https://indico.bnl.gov/event/16283/
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