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## Aktualności

# Blogi

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

May 31 at **15:15**, which will be given by

Joao Barata (Brookhaven National Laboratory)

entitled

“Jet quenching in a digital quantum computer”

Abstract: The fast development of quantum technologies over the last decades has offered a glimpse to a future where the quantum properties of multi-particle systems might be more fully understood. So far, quantum computing has seen ample application in areas such as quantum chemistry or condensed matter, but its usage in high-energy physics is still in its infancy. In the particular case of QCD jets, these technologies might offer a way to more fully understand the intricate interference pattern arising from the multi-parton cascade. In this talk, I will discuss an approach to study the evolution of jets in the presence of a background field. I will consider single parton evolution, neglecting radiative energy loss and focusing on momentum diffusion. Using the typical approximations found in jet quenching literature, this problem is easily solved and thus it offers a good first step towards studying full jets. Besides the formulation of the problem in terms of operations on the quantum computer, I will also show some early numerical results using qiskit.

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

May 24 at 12:15, which will be given by

Sebastian Sapeta (IFJ PAN)

entitled

“Triple-collinear one-loop splitting functions in QCD”

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear All,

We would like to invite you to the lecture on Diffraction in hadronic collisions

The lecture will be on Monday, 16th May at 2pm:

https://events.ncbj.gov.pl/event/137/

Speaker: Anna Staśto (Penn State University, USA)

Title: Diffraction in hadronic collisions (1/2)

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on WEDNESDAY,

May 18 at 12:15, which will be given by

Prof. Michał Spaliński (NCBJ)

entitled

“Hydrodynamic Attractors and Quark-Gluon Plasma”

Abstract: The successful application of fluid-dynamical models to the physics of Quark-Gluon Plasma created in ultra-relativistic nuclear collisions has inspired a number of theoretical investigations aimed at understanding how this is possible, given the complexity of the post-collision state. I will describe a possible resolution of this "early-thermalisation puzzle" which is suggested by studies of various idealised models.

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear All,

We would like to invite you to the lecture on Basics of Colour Glass Condensate.

The lecture will be tomorrow 9th May at 2pm:

https://events.ncbj.gov.pl/event/137/

Speaker: Professor Jamal.Jalilian-Marian

Title:

Basics of Colour Glass Condensate (2/2)1h

Please join the meeting from your computer, tablet or smartphone.

https://www.gotomeet.me/NCBJmeetings/electron-ion-collider

Best Regards,

Krzysztof Kutak, Jakub Wagner, Agnieszka Łuszczak (on behalf of the representatives,

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

May 10 at 12:15, which will be given by

Yan-Qing Ma (Peking University)

entitled

“From linear algebra to Feynman integrals”

Abstract: I will show that all Feynman integrals, to any loop orders and including all types of propagators, are completely determined by linear algebra between Feynman integrals. This observation results in a very powerful method (AMF) to calculate Feynman integrals, which is in fact the only method on the market to calculate arbitrary Feynman integrals to high precision. The method has been implemented in our open source package "AMFlow".

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

April 12 at 12:15, which will be given by

Larry McLerran (INT Seattle)

entitled

"Neutron stars and quarkyonic matter".

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

March 22 at 12:15, which will be given by

Jacek Otwinowski (IFJ PAN)

entitled

"Nuclear structure at high energy with ALICE at the LHC".

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

March 15 at 12:15, which will be given by

Jerzy Karczmarczuk

entitled

“Computations in Physics, and Corecursive programming techniques".

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear all,

we would like to invite you to a series of lectures on EIC physics. The lectures are going to be at the undergraduate, beginning graduate level and will address basics as well as new developments in QCD.

The lectures will be delivered by:

Krzysztof Golec-Biernat

Marcus Diehl

Jamal Jalilian-Marian

Cedric Lorce

Anna Stasto

The detailed description of the course and the scope of the lectures can be found at https://eicpl.ifj.edu.pl/doku.php

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

March 8 at 12:15, which will be given by

Magdalena Sławińska (Instytut Fizyki Jądrowej PAN)

entitled

“Constraining Higgs boson properties using WW*(→e ν μ ν) jj final state with the ATLAS detector.".

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Piotr Korcyl, Jacek Wosiek, Michał Praszałowicz

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

March 1 at 12:15, which will be given by

dr hab. Andrzej Siódmok, prof. UJ (Instytut Informatyki Stosowanej)

entitled

“New approach to measure quark and gluon jets at the LHC".

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-2-02.

Jacek Wosiek, Michał Praszałowicz, Piotr Korcyl

Dear All,

I would like to invite you to the EIC PL Seminar on 28th February at

2pm: https://indico.bnl.gov/event/14943/

Speaker: Professor IGNAZIO SCIMEMI (Complutense University of Madrid)

Title: Progresses in TMD studies

Abstract: The understanding and phenomenological evidence of TMD has received some notable progress. Together with my collaborators,we have understood how TMD factorization arises using the background field method in QCD, so extending its validity to next-to-leading power in a small transverse momentum expansion. Phenomenologically we have understood some crucial understanding of errors in the extraction of unpolarized quark TMD. If some time is left, I will also report on the possibility of extracting gluon TMD at EIC with a di-jet process.

Please join the meeting from your computer, tablet or smartphone.

https://www.gotomeet.me/NCBJmeetings/electron-ion-collider

Access Code: 395-721-853

Dear All,

we have the pleasure to invite you to the Particle Theory Seminar on Tuesday,

January 11 at 12:15

dr. Tomasz Stebel (IFT)

Czy sieć neuronowa może nauczyć się fizyki? - część II

Can neural network learn physics? - part II

The seminar will be in a hybrid mode, local people are invited to meet in the seminar room D-02-2.

Dear Members of the PL EIC Community,

I would like to invite you to the EIC PL Seminar on 13th December at

2pm: https://indico.bnl.gov/event/13970/

Speaker: dr hab. Tolga Altinoluk (NCBJ)

Abstract

Color Glass Condensate (CGC) is the effective theory that is used to study high energy hadronic collisions. One of the key approximations adopted in the CGC framework is the so-called eikonal approximation. In this approximation, one neglects all power-suppressed energy corrections and just keeps the leading contribution. While this approximation is very successful and powerful tool to describe the asymptotically high energy scatterings, in reality the scattering energies that are reached in the experiments are limited. In this talk, we present a systematic way to include subeikonal corrections in the CGC calculations which are expected to be sizable for future EIC phenomenology.

Please join the meeting from your computer, tablet or smartphone.

https://www.gotomeet.me/NCBJmeetings/electron-ion-collider

Access Code: 395-721-853

Dear Members of the PL EIC Community,

I would like to invite you to the EIC PL Seminar on 15th November at

2pm: https://indico.bnl.gov/event/13803/

Speaker: Herve Moutarde (IRFU, CEA, Université Paris-Saclay)

Title: Precision 3D hadron structure in the EIC perspective

Abstract:

Three-dimensional hadron structure constitutes a significant part of the physics program to be investigated on future electron-ion colliders.

This topic has benefited from two decades of experimental investigations which mostly provided direct constraints on quark distributions. This contrasts with gluon distributions which can be accessed either indirectly through careful phenomenological analysis of accurate measurements, or directly by probing the adequate kinematic domain. In both cases a unified theoretical description is required to provide a full quantitative understanding of the 3D parton structure of hadrons.

Please join the meeting from your computer, tablet or smartphone.

https://www.gotomeet.me/NCBJmeetings/electron-ion-collider

For access code please email to piotr dot korcyl at uj dot edu dot pl