Author: Bartłomiej Brudnowski

Dnia 23 stycznia (piątek) o godzinie 11:30, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„Pomiar anomalnych momentów magnetycznych leptonów”

Referuje: dr hab. Artur Kalinowski, prof. UW (IFD UW)

Przypomnę istotę anomalnego momentu magnetycznego punktowych, naładowanych, cząstek. Następnie przedstawię eksperymenty w których jest wykonywany pomiar tej wielkości dla leptonów ze wszystkich trzech generacji.

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak

prof. dr hab. Aleksander Filip Żarnecki

Dnia 16 stycznia (piątek) o godzinie 11:30, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„Inclusive charm photoproduction in ultraperipheral collisions at the LHC”

Referuje: prof. Anna Staśto (Penn State University)

Ultraperipheral collisions (UPCs) of nuclei at high energies offer unique opportunity to explore the nuclear structure in a clean environment. UPCs occur when two nuclei scatter at impact parameters that exceed the sum of nuclear radii. The UPCs lead to large photonuclear cross sections.  In UPC processes involving jets or heavy quarks, large scale allows for perturbative description of the process, and thus such processes can serve as good probes of the nuclear structure. We present the calculation of the  inclusive D0 production cross section in UPC PbPb collisions at the LHC using the Generalized photon-nucleus FONLL framework. In this approach the heavy quark production is computed using the FONLL framework developed previously by Cacciari-Frixione-Nason for ep collisions,  and includes additional electromagnetic corrections to describe the photoproduction cross section in UPC heavy ion collisions. The calculations are validated against the D* photoproduction cross section from HERA. The predictions for D0 cross section as a function of rapidity and transverse momentum of the D0 meson are presented and compared to the preliminary results from UPC collisions measured by CMS. The sensitivity of the results is studied, when different choices of parton distribution functions and fragmentation functions are made, as well as a function of variation in renormalization and factorization scale dependence.

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak

prof. dr hab. Aleksander Filip Żarnecki

Dnia 9 stycznia (piątek) o godzinie 11:30, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„Raport from the EPS-HEP conference”

Referują: dr Małgorzata Kazana (NCBJ)

dr Katarzyna Kowalik  (NCBJ)

The European Physical Society Conference on High Energy Physics (EPS-HEP) is one of the major international conferences organized every second year. The latest edition was hosted in Marseille, France in the summer of 2025. The conference highlighted the latest breakthroughs and developments across a broad range of topics, including high energy and particle physics, astroparticle physics, neutrino physics, and related disciplines.

During the seminar we will review two topics: LHC physics (M.Kazana) and neutrino physics (K.Kowalik)

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak

prof. dr hab. Aleksander Filip Żarnecki

SEMINARIUM FIZYKI WIELKICH ENERGII

Dnia 12 grudnia (piątek) o godzinie 11:30, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„Far-forward physics at the LHC”

Referuje: dr hab. Sebastian Trojanowski (NCBJ)

The launch of the LHC Run 3 data-taking period marked the advent of the collider neutrino physics program and far-forward BSM studies via the dedicated FASER and SND@LHC experiments. The neutrino program aims to bridge gaps in precision neutrino measurements. It also serves as a novel window to test hadronic interactions at high energies and large pseudorapidities, which generate forward neutrinos at the LHC.

The new physics program is dedicated to probing BSM scenarios connected to theoretical thermal dark matter targets. In this talk, we will summarize ongoing measurements, outline future plans, and highlight selected specific applications of this experimental program.

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak

prof. dr hab. Aleksander Filip Żarnecki