[Theory-seminars] Cake seminar next Monday: Xiaoxian Jing

[Astrid Hiller Blin]

Dear All,

Next Monday we will have a cake seminar by Xiaoxian Jing, please see the
details below. As always in this less formal seminar setting, we will
connect *20 min* before the seminar for a *coffee break* all together.

Bluejeans connection: https://bluejeans.com/801786278

*Cake seminar*
Monday May 10th, 1:00 PM

*Xiaoxian Jing* (Southern Methodist University) will speak about the
"Deuteron Scattering Experiments in CTEQ-JLab and CTEQ-TEA Global QCD
Analyses and Monte-Carlo pdf error set".

*Abstract:*
Experimental measurements in deep-inelastic scattering and lepton-pair
production on deuterium targets play an important role in the flavor
separation of $u$ and $d$ (anti)quarks in global QCD analyses of the parton
distribution functions (PDFs) of the nucleon. I investigate the impact of
theoretical corrections accounting for the light-nuclear structure of the
deuteron upon the fitted $u, d$-quark, gluon, and other PDFs in the CJ15
and CT18 families of next-to-leading order CTEQ global analyses. The
investigation is done using the $L_2$ sensitivity statistical method, which
provides a common metric to quantify the strength of experimental
constraints on various PDFs and ratios of PDFs in the two distinct fitting
frameworks. In addition, I will also present some new results on the
generation of the Monte-Carlo replicas, and discuss its connection with the
Hessian representation in the in the framework of $L_2$ sensitivity.

We look forward to seeing you there!
Astrid, Christos, Filippo
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