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SUMMARY:Effect of higher orders in opacity on high-pT observables
DTSTART;VALUE=DATE-TIME:20230529T095000Z
DTEND;VALUE=DATE-TIME:20230529T101000Z
DTSTAMP;VALUE=DATE-TIME:20261010T114040Z
UID:indico-contribution-364@indico.ipb.ac.rs
DESCRIPTION:Speakers: Bojana Ilic (Institute of Physics Belgrade\, Serbia)
 \nHistorically\, high-pT radiative energy loss is calculated under the ass
 umptions of the optically thin or optically thick medium within pQCD. Thes
 e are two limiting (and opposite) approximations\, corresponding to a jet 
 experiencing only one or an infinite number of scatterings with medium con
 stituents\, respectively. However\, in general\, QGP created at the RHIC a
 nd the LHC is estimated to have 4-5 scattering centers\, indicating the in
 adequacy of such approximations. Theoretical efforts to relax these approx
 imations are still inconclusive\, and lack verification against experiment
 al data.\nTo address these issues\, we generalize our dynamical energy los
 s and DGLV formalisms toward finite orders in opacity\, providing explicit
  analytical expressions up to the 4th order. These complex expressions\, w
 hich are highly oscillatory\, are obtained for the first time to our knowl
 edge. Further\, we implement them into an adequately generalized DREENA fr
 amework to assess the effects of higher orders in opacity on a comprehensi
 ve set of high-pT observables. Analytical and numerical results\, as well 
 as the interpretation of nonintuitive observations\, are provided.\n\nhttp
 s://events.saifa.rs/event/554/contributions/364/
LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia
URL:https://events.saifa.rs/event/554/contributions/364/
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