2nd Edition of the Workshop 'Quarkonia meet Dark Matter' (QMDM)

Session

Tuesday - Session 1

Mar 19, 2024, 9:00 AM

Auditorium (Institute for Advanced Study, Technical University of Munich)

88. Nonperturbative regime: quarkonium

Nora Brambilla (Physik Department, TU Munich)

3/19/24, 9:00 AM

I review how strongly coupled potential nonrelativistic QCD (pNRQCD) and lattice
can describe quarkonium in the confinement region. A new effective field theory called Born Effective Field Theory (BOEFT) is able also to describe the new XYZ exotics discovered in the sector with two heavy quarks. I discuss the implications
of these findings for nonperturbative scenarios of DM.

64. Strong cosmological phase transitions through the EFT lens

Philipp Schicho (Goethe University Frankfurt)

3/19/24, 9:35 AM

2. Non-perturbative regime: Strongly coupled DM and quarkonia systems, phase transitions of QCD and new physics particles in the early Universe

To describe cosmological phase transitions perturbatively, scale hierarchies are required. At finite temperature such a hierarchy is provided naturally for gauge theories. If this hierarchy is not accounted for, uncertainties of phase transition thermodynamic parameters can be large due to infrared sensitivity and slow perturbative convergence faced by scalar bosons.

To reliably describe...

60. Quarkonia in lattice field theory at finite temperature

Johannes Heinrich Weber (Technische Universität München)

3/19/24, 10:10 AM

2. Non-perturbative regime: Strongly coupled DM and quarkonia systems, phase transitions of QCD and new physics particles in the early Universe

Quarkonia are versatile probes to study the hot primordial nuclear matter. Their dynamics are usually described through models based on resummed perturbative QCD, AdS, and effective field theories. It is not immediately obvious to which extent these models can describe the strongly coupled media most relevant to phenomenology. The lattice provides nonperturbative input and constraints to such...

62. Nonperturbative regime: quarkonium

Nora Brambilla (Physik Department, TU Munich)

2. Non-perturbative regime: Strongly coupled DM and quarkonia systems, phase transitions of QCD and new physics particles in the early Universe

I review how strongly coupled potential nonrelativistic QCD (pNRQCD) and lattice
can describe quarkonium in the confinement region. A new effective field theory called Born Effective Field Theory (BOEFT) is able also to describe the new XYZ exotics discovered in the sector with two heavy quarks. I discuss the implications
of these findings for nonperturbative scenarios of DM.