Research Seminars @ Illinois

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Tailored for undergraduate researchers, this calendar is a curated list of research seminars at the University of Illinois. Explore the diverse world of research and expand your knowledge through engaging sessions designed to inspire and enlighten.

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Nuclear Physics Seminar - Jen-Chieh Peng (UIUC) “Probing the partonic structure of pion and kaon with dilepton production”

Event Type
Seminar/Symposium
Sponsor
Physics Department
Location
Rhondale Tso Seminar Room, Loomis 236
Date
Oct 6, 2025   1:00 pm  
Speaker
Jen-Chieh Peng (UIUC)
Contact
Brandy Koebbe
E-Mail
bkoebbe@illinois.edu
Views
23
Originating Calendar
Physics - Nuclear Physics Seminar

I discuss an analysis to extract the quark and gluon distributions of pion and kaon using meson-induced Drell-Yan and quarkonium production data. Starting from the statistical model first developed for determining the partonic structure of spin-1/2 nucleon, we have extended this approach to perform a global fit to existing meson-induced Drell-Yan and J/ψ production data. These data are well described by the statistical model, allowing a first extraction of the kaon PDFs. We find that both the Drell-Yan and the J/ψ data favor a harder valence distribution for strange quark than for up quark in kaon. The kaon gluon distribution is further constrained by the J/ψ production data. In particular, the momentum fraction carried by gluons is found to be similar for pion and kaon.

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