Month: Kwiecień 2024

SEMINARIUM FIZYKI WIELKICH ENERGII

Dnia 26 kwietnia (piątek) o godzinie 10:15, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„The future of multidimensional phase space in collider physics”

Referuje: dr Alibordi Muhammad (IFD UW)

The Large Hadron Collider is consistently increasing the luminosity and the energy. This will help the experimentalists to search for new physics beyond the standard model. Simultaneously this high amount of data requires a much more sophisticated data analysis approach. It requires a deeper  understanding of the problem both in statistical and computational sense than ever before. This talk will make a surface level review of some of these aspects.

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak
prof. dr hab. Aleksander Filip Żarnecki

SEMINARIUM FIZYKI WIELKICH ENERGII

Dnia 19 kwietnia (piątek) o godzinie 10:15, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„Transverse-spin asymmetries in COMPASS Drell-Yan data „

Referuje: mgr Małgorzata Niemiec (IFD UW)

After nearly 60 years of extensive experimental and theoretical studies, several aspects of the nucleon structure are still poorly known. While main  efforts focuse on its collinear structure, measurements of transverse parton momenta are scarce and their analysis complicated.

They involve measuring cross-section asymmetries in reactions like semi-inclusive deep inelastic scattering or Drell-Yan processes.

In 2015 and 2018 the COMPASS Collaboration at CERN performed measurements of the Drell-Yan process π−p → μ+μ−X at 190 GeV/c pion beam and transversely polarised NH3 target. This presentation covers a description of the measurement of Transverse Spin Asymmetries in the Drell-Yan process, and in particular of a novel approach, in contrast to the conventional one, where the asymmetries are weighted by powers of a transverse momentum of the dimuon system with respect to the beam.

This presentation is an extended version of a talk given on behalf of the COMPASS Collaboration  at the International Workshop on Deep Inelastic Scattering and Related Subjects, DIS2024, in Grenoble (France), 8-14 April, 2024.

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak
prof. dr hab. Aleksander Filip Żarnecki

SEMINARIUM FIZYKI WIELKICH ENERGII

Dnia 12 kwietnia (piątek) o godzinie 10:15, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„T2K+NOvA Joint Neutrino Oscillation Analysis”

Referuje: dr Tomas Nosek (NCBJ)

The T2K and NOvA experiments are the two currently active long-baseLine (LBL)

experiments to measure the phenomenon of neutrino oscillations. This talk presents a

joint T2K+NOvA neutrino oscillation analysis within the standard three active neutrino

flavors paradigm, which includes each experiment’s fully detailed detector simulations

and takes advantage of the complementary oscillation baselines of 295 km and

810 km and neutrino energies around 0.6 GeV and 2 GeV for T2K and NOvA, respectively.

The T2K and NOvA collaborations have worked together on a joint analysis

of the two experiments’ data, hoping to use the differing physics sensitivities to paint

the clearest picture of neutrino oscillations from LBL experiments. Within a unified

Bayesian inference, the results from the first T2K+NOvA joint neutrino oscillation

measurement will be discussed.

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak
prof. dr hab. Aleksander Filip Żarnecki

SEMINARIUM FIZYKI WIELKICH ENERGII

Dnia 5 kwietnia (piątek) o godzinie 10:15, w sali B2.38 odbędzie się seminarium, na którym zostanie wygłoszony referat pt.:

„Construction of the research high temperature gas-cooled reactor HTGR-POLA (POLish Atomic) in Świerk”

Referuje: prof. dr hab. Mariusz P. Dąbrowski (NCBJ)

High-temperature nuclear reactors produce heat at the temperature range (from over 500 ⁰C to even 1000 ⁰C) which is hardly achievable by any light water reactor (approx. 300 ⁰C). In view of that they are ideal for decarbonization of the Polish chemical and petrochemical industry which requires the high temperature steam. NCBJ has been carrying out preparatory work in various areas (legal, social, organizational, technical) for the construction of this type of reactors in Poland for nearly a decade. Now the NCBJ experts plan to build a research-demo reactor at Świerk in order to gain experience towards industrial implementation of this technology. Due to the fund from the Ministry of Science and Higher Education (agreement 1/HTGR/2021/14), the elaboration of the so-called basic design of such a reactor is being carried on. This happens in cooperation with the Japan Atomic Energy Agency, which possesses similar, though not updated to current trends in polygeneration (production electricity, heat, hydrogen etc.), research device – HTTR. The reactor traditionally carrying feminine name “POLA” will have a power of 30 MW thermal and will operate continuously using the energy produced for NCBJ’s own purposes (electricity production, municipal heat) and for an industrial test installations using high-temperature steam at 560 ⁰C. The aim of the seminar will be to present the context, assumptions, status of current work on the reactor design and the prospects for its rapid construction.

Serdecznie zapraszamy

dr hab. Katarzyna Grzelak
prof. dr hab. Aleksander Filip Żarnecki