# Magnetic susceptibility of QCD matter

#### Magnetic susceptibility of QCD matter

- Event time: 2:00pm until 3:00pm
- Event date: 1st November 2023
- Speaker: Gunnar Bali (Universität Regensburg)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) (James Clerk Maxwell Building (JCMB)) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

Title:

Magnetic susceptibility of QCD matter

Abstract:

In the cores of magnetars, during neutron star mergers and in heavy

ion collisions magnetic fields can be found that are so strong that

the properties of strongly interacting matter may be affected,

possibly with observable consequences. Theoretical expectation

relating to matter in such environments will be presented. These have

mostly been obtained by numerical lattice QCD computations. QCD matter

turns out to be diamagnetic at low temperatures and paramagnetic at

high temperatures. The magnetic susceptibility can be further

decomposed into a Pauli spin contribution and angular momentum related

Landau contributions. The former is related to the so-called

normalization of the photon light cone distribution amplitude.

### About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..