Internal Seminars SS 22

Wed 22.06.2022 15:45 (Zoom)

CRC Colloquium:
Anja Butter (Uni Heidelberg)

Find your own flow - Generative networks for better precision simulations

Abstract:
First-principle simulations link the vast data output of multi-purpose detectors with fundamental theory predictions and interpretation. In order to meet the unprecedented precision requirements of future LHC runs, new ideas and tools based on neural networks have been developed at the interface of particle physics and machine learning. Generative networks, in particular normalizing flows, can improve the speed and precision of forward simulations and handle the complexity of collision data. Such networks can be employed to improve integrations in loop calculations, perform subtractions of sample based distributions and enhance the unweighting efficiency of simulations. A major challenge for these tasks is the achievement of high-precision and the assessment of network related uncertainties. Since normalizing flows can be inverted, they will open new avenues in LHC analyses from the unfolding of data to applications of the matrix element method.

Host: K. Melnikov

 

Fri 17.06.2022 10:00 (Zoom/MBP 026)

Master's Colloquium:

Satvik Mishra (RWTH)

Semi-analytical modelling of reionization

Host: J. Lesgourgues

 

Wed 18.05.2022 15:45 (Zoom)

CRC Colloquium:
Rusa Mandal (Siegen)

What are the indirect hints of new physics telling us?

Abstract:
Despite thousands of verification with measurements, there exist some clear indications that the framework of the Standard Model of particle physics is not complete. In this colloquium, I would highlight how some of these indications can be correlated with the recent tensions observed in the flavor sector. I would then categorize the possible directions; firstly in which experimental inputs are required, secondly, predictions from theory side especially for the non-perturbative physics are essential in order to understand the dynamics of the underlying theory.

Host: K. Melnikov

 

Wen 18.05.2022 14:00 (26C 402)

Master thesis mid-term presentation:
Lena Saurenhaus (RWTH)

Energy cross-correlations in cosmic ray small-scale anisotropies

Host: P. Mertsch

 

Wen 18.05.2022 14:45 (26C 402)

Master thesis mid-term presentation:
Patrick Schillings (RWTH)

Dark plasma instabilities

Host: P. Mertsch

 

Fri 06.05.2022 9:45 (Zoom/26C 402)

Master thesis mid-term presentation:
Ali Riahinia (RWTH)

Constraining simplified dark matter models using the CONTUR method

Host: M. Krämer

 

Fri 06.05.2022 9:00 (Zoom/26C 402)

Master thesis mid-term presentation:
Julia Sehringer (RWTH)

Axion detection with quantum sensing

Host: F. Kahlhoefer

 

Fri 06.05.2022 9:00 (Zoom/MBP 015)

Master's Colloquium:
Janosch Borgulat (RWTH)

Towards the full energy-momentum tensor in the gradient-flow formalism

Host: R. Harlander

 

Thu 28.04.2022 11:45 (Zoom/Glass Box MBP1)

Master thesis mid-term presentation:
Julia Sehringer (RWTH)

Axion detection with quantum sensing

Host: F. Kahlhoefer

 

Thu 28.04.2022 11:00 (Zoom/Glass Box MBP1)

Master thesis mid-term presentation:
Sowmiya Balan (RWTH)

Constraining DM annihilation with antiprotons

Host: F. Kahlhoefer

 

Tue 26.04.2022 14:00 (MBP2 117/zoom)

PhD defense:
Marco Kuhlen (RWTH)

Small-Scale Anisotropies in Cosmic Ray Arrival Directions

Host: P. Mertsch

 

Thu 21.04.2022 9:15 (Zoom/Glass Box MBP1)

Master thesis mid-term presentation:
Sabarish Venkataramani (RWTH)

Forecasts for Euclid and Litebird

Host: J. Lesgourgues