[Theory-seminars] Theory Seminar Tomorrow [In-Person & Remote] - Peter Risse

[Caroline Costa]

Hello All,

Tomorrow at 1:00 PM (EDT), Peter Risse will give our first hybrid theory seminar of the Fall term.
If you will be on-site and are comfortable doing so, please join us in room F224/225 of CEBAF Center. Otherwise, Peter's seminar will also be provided virtually on our usual ZoomGov link: https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09

Please see below for the title and abstract of Peter's talk.

Theory Seminar
Monday, September 19th at 1:00 PM

Peter Risse (University of Münster)
will discuss "Towards a Markov Chain Monte Carlo investigation of nuclear PDFs"

Abstract: Nuclear parton distribution functions (nPDFs) describe the
structure of nuclei as composed of quarks and gluons. They are a key
element in making predictions for collider experiments. Due to their
non-perturbative nature, the extraction of nPDFs relies on a global
analysis of multiple hard scattering processes, such as deep inelastic
scattering (DIS), Drell-Yan (DY), lepton pair production and inclusive
jet production. In this talk, we investigate the use of Markov Chain
Monte Carlo methods as an alternative fitting procedure in order to
infer the nPDFs from the available experimental data. Monte Carlo
simulations are computationally costly. Therefore we have to optimize
the evaluation speed of physical observables. Especially the prediction
in the DIS sector has to be improved, since it makes up the bulk of the
experimental data. Here we will focus on the treatment of heavy quark
effects in the predictions.

See you tomorrow!
Caroline, Colin & Patrick

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