About Us

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About Us

The research is carried out in several directions, with an emphasis on precise calculations of higher-order perturbation effects for electroweak observables at LHC and future lepton accelerators. We are particularly focused on the activities related to the FCC-ee project at CERN.

The research topics of the group include:
1. Precise calculation of parameters and observables of the Standard Model (SM)
2. Phenomenology of SM extensions (neutrinos, additional gauge bosons, Higgs scalars)
3. Development of methods and tools for the calculation of multi-loop Feynman integrals

Detailed research goals:
1. Use of new computational techniques and advanced algebra to define and constraint elements of the neutrino mixing matrix with non-standard neutrinos.
2. Phenomenology of non-standard particles at the LHC and future lepton accelerators (H++, W2, Z2, heavy neutrinos).
Precise calculation of electroweak of electroweak pseudoobservables for the LHC and future accelerators.
3. Developing analytical and numerical methods of calculating multi-loop integrals.
4. Analysis of masses and mixing matrices in models with the so-called family symmetry.
5. Analysis of finite groups up to the order of 1025 assuming the existence of family symmetries for 3HDM models.

Maestro NCN grant 2024-2029

A new project, Precision Studies for particle-collider physics, has received funding from Polish National Science Centre (~3.4 MPLN). The research mainly focuses on calculations and simulations using the Monte Carlo higher-order perturbation effects generators within the Standard Model of particle physics in current and future high-energy accelerators. These calculations will allow the verification of subtle effects predicted by extended theoretical models that attempt to answer still unexplained aspects of particle physics related to the interactions of Higgs particles and their impact on the evolution of the Universe with matter-antimatter asymmetry and the effects of CP symmetry violation, or the generation of masses and neutrino oscillations. The research will be conducted in cooperation with scientists from Germany, Hungary, Switzerland, Ukraine, the UK and the USA.

You can read more about the project on the website of the National Science Centre: https://www.ncn.gov.pl/sites/default/files/listy-rankingowe/2023-06-15-lut7739ikitila/streszczenia/595831-en.pdf

(in Polish:) https://www.ncn.gov.pl/sites/default/files/listy-rankingowe/2023-06-15-lut7739ikitila/streszczenia/595831-pl.pdf

Scientific visit – India

From November 21 to December 4, 2023 Bartosz Dziewit and Krzysztof Grzanka had a scientific visit to IIT Kanpur in India. The stay was part of the project realization: Minimal Left-Right Symmetric Model as an Effective Field Theory, Polish National Agency For Academic Exchange (Bilateral exchanges PL – INDIA).

As part of this agreement, they were guests in a group led by Dr. Joydeep Chakrabortty.

Crowdy streets of Paharganj in Delhi.
Indian Institute of Technology Kanpur

Participation in Corfu 2022

August 28 – September 8, 2022, Janusz Gluza and Krzysztof Grzanka participated in Corfu 2022, the Standard Model and Beyond workshop, and they gave talks which can be found here.

as in physics, sometimes it’s hard to get to the point.

photo with the main organizer, Dr. George Zoupanos, initiator of the Summer Institute at Corfu.
the main conference hall
talks also in the garden

Participation in NuFact 2022, Snowbird, USA

From July 30 through 6th August Janusz Gluza took part in NuFact 2022, chairing one of the plenary sessions and giving the talk “PMNS and the number of additional neutrino flavors” https://indico.fnal.gov/event/53004/contributions/243136/attachments/158351/207755/NuFact_2022.pdf. This conference was held in Snowbird, Utah, USA, and focused on neutrino physics and colliders. The twenty-third of the series of yearly international workshops started in 1999.

Participation in the FLASY 2022 scientific conference.

From June 27 through July 1 Biswajit Karmakar (talk “A flavor model for cobimaximal mixing” https://indico.cern.ch/event/1099312/contributions/4821198/) and Bartosz Dziewit took part in 9th Workshop on Flavour Symmetries and Consequences in Accelerators and Cosmology – FLASY 2022. This conference was held in Lisbon and focused on the researchers in the field of flavour symmetries, neutrino physics, Higgs physics, CP violation, accelerator physics and cosmology/astroparticle physics to present new results, stimulate discussion and new collaborations.

We are organizing: Standard Model and Beyond conference, 21-23.10.2022

On October 21-23, 2022, the Symposium of the Fundamental Interactions Physics Section (SFOF) of the Polish Physical Society was held in Katowice. The symposium was organized in a hybrid form; 79 physicists participated in the event (6 online). During the symposium, in addition to the talks, a poster session was held, and the three best posters were selected. A group of participants spent Friday evening in the “Hipnoza” club, while on Saturday evening we got to know the Silesian Planetarium, which was renewed this year, Chorzów Park.

Details: http://indico.if.us.edu.pl/event/10/overview

Our Visits at CERN in 2022 and Precision Physics Workshop

Biswajit Karmakar, Krzysztof Grzanka, Janusz Gluza, Bartosz Dziewit and Ievgen Dubovyk visited CERN from 29.05 to 18.06 as a part of the UŚ-CERN FCC scientific cooperation. In parallel we took part in the two-week Precision calculations for future e+e- colliders: targets and tools workshop, where Janusz Gluza gave a talk on Feynman parametrization and numerical integration.

Reaching the heights

Modern methods of calculating Feynman integrals and related general multidimensional integrals – lectures.

We invite all students of the Faculty of Science and Technology of the University of Silesia to participate in lectures devoted to modern methods of calculating Feynman integrals and related general multidimensional integrals.

These lectures will be conducted by a recognized specialist in this field:
Dr. Gabor Somogyi.
They are organized within the framework of the POWER project.
Details on the project website.

Particles in Rybnik

We were at the secondary school LO1 in Rybnik: dr Biswajit Karmakar gave a lecture „Neutrinos and secrets of our Universe” with introduction by prof. Janusz Gluza „Wielkie urządzenia, małe obiekty – krótko o fizyce cząstek elementarnych” – “Big facilities, small objects – shortly about particle physics”. Some photos: link