Physics Department, TUM | Gruppe Prof. Garbrecht

Research Field

The observed Universe can be very well described in terms of the Standard Model (SM) of Particle Physics, gravitation, neutrinos and Cold Dark Matter. The present understanding ranges from times below the Electroweak Phase transition, 10^-12 seconds after the Bang, until today, 13.8 billion years later. The cosmic evolution depends sensitively on initial conditions, such as the matter-antimatter asymmetry, the Dark Matter abundance and density perturbations, that eventually grow into galaxies.

Understanding the initial conditions is one of the key motivations for exploring Physics beyond the SM. Cosmology thus complements laboratory experiments such as the Large Hadron Collider. The particular research interests of our group encompass the origin of the matter-antimatter asymmetry and of density perturbations from inflation. In particular, we develop theoretical methods for calculations on the dynamics and reactions of elementary particles at very high temperatures and in curved spacetimes, i.e. under conditions present in the Early Universe.

Address/Contact

James-Franck-Str. 1/II
85748 Garching b. München

Members of the Research Group

Professor

Photo	Degree	Firstname	Lastname	Room	Phone	E-Mail
	Prof. Dr.	Björn	Garbrecht	PH: 3334	+49 89 289-12363	E-Mail

Office

Photo	Degree	Firstname	Lastname	Room	Phone	E-Mail
		Daniela	Neufang	–	+49 89 289-12662	E-Mail

Scientists

Degree	Firstname	Lastname	Room	Phone	E-Mail
M.Sc.	Alexander	Baur	–	–	E-Mail
M.Sc.	Mathias	Becker	–	–	E-Mail
	Emanuele	Copello	–	–	E-Mail
M.Sc.	Juan	Cruz Avendano	–	–	E-Mail
M.Sc.	Kare	Fridell	–	–	E-Mail
	Dario	Gueter	–	–	E-Mail
Dr.	Julia	Harz	–	+49 89 289-12602	E-Mail
Dr.	Chandan	Hati	–	–	E-Mail
	Juraj	Klaric	PH: 1132	–	E-Mail
Dr.	Ricardo	Landim	–	–	E-Mail
Dr.	Carlos	Tamarit Degenhardt	–	–	E-Mail
M.Sc.	Giovanni	Zattera	–	–	E-Mail

Students

Firstname	Lastname	Room	Phone	E-Mail
Bahaa	Ilyas	–	–	E-Mail
Jonas	Lang	–	–	E-Mail
Vernando Fransiscus	Limodya	–	–	E-Mail
Victor Tomas	Mari Surkau	–	–	E-Mail
Jamie	McDonald	–	–	E-Mail
Mohamed Younes	Sassi	–	–	E-Mail

Other Staff

Photo	Degree	Firstname	Lastname	Room	Phone	E-Mail
	Dr.	Aschraf	Abdelfattah	–	–	E-Mail

Teaching

Course with Participations of Group Members

SS 2021 WS 2020/1 SS 2020 WS 2019/20

Titel und Modulzuordnung
Art	SWS	Dozent(en)	Termine
Theoretische Physik 1 (Mechanik) eLearning-Kurs aktuelle Informationen Zuordnung zu Modulen: PH0005: Theoretische Physik 1 (Mechanik) / Theoretical Physics 1 (Mechanics)
VO	4	Garbrecht, B.	Mo, 10:00–12:00, PH HS1 Do, 12:00–14:00, PH HS1
Offenes Tutorium zu Theoretische Physik 1 (Mechanik) Zuordnung zu Modulen: PH0005: Theoretische Physik 1 (Mechanik) / Theoretical Physics 1 (Mechanics)
UE	2	Leitung/Koordination: Garbrecht, B.	Mi, 10:00–12:00, MW 1050
Übung zu Theoretische Physik 1 (Mechanik) eLearning-Kurs aktuelle Informationen Zuordnung zu Modulen: PH0005: Theoretische Physik 1 (Mechanik) / Theoretical Physics 1 (Mechanics)
UE	2	Leitung/Koordination: Garbrecht, B.	Termine in Gruppen

Offers for Theses in the Group

Freeze-in dark matter and their implications on cosmology and terrestrial experiments

So far, we can explain only 5% of our Universe by the standard model of particle physics. 25% of our Universe, however, consists out of “dark matter”. While we have different experimental hints for its existence, we do not know yet its true nature. With new experimental possibilities in the near future, so-called freeze-in scenarios receive increased interest. We want to study these models with respect to a modified cosmological history, their link to neutrino physics and their implications for experiments in more detail.

suitable as

Master’s Thesis Nuclear, Particle, and Astrophysics

Supervisor: Julia Harz

Lepton number violating interactions as a guiding principle for the neutrino nature

Even though we know that neutrinos must have masses, we do not know yet which mechanism generates them. One possibility is that they are their own antiparticles, being of “Majorana” type. An experimental hint for this would be the measurement of lepton number violating interactions e.g. at the LHC, neutrinoless double beta decay or meson decays. In an effective field theory, we want to study the complemenatry of these interactions and their experimental prospects in more detail.