Le contenu de cette page n’est pas disponible en français. Veuillez nous en excuser.

Particle Physics

This series consists of talks in the areas of Particle Physics, High Energy Physics & Quantum Field Theory.

Seminar Series Events/Videos

Speaker(s):
Scientific Areas:
TBA
sep 15 2015 - 1:00pm
Room #: 400
Speaker(s):
Scientific Areas:
TBA
oct 16 2015 - 1:00pm
Room #: 400
Speaker(s):
Scientific Areas:

 

Vendredi juil 31, 2015
Speaker(s): 

Extensions of the Standard Model (SM) Higgs sector often predict the existence of new vacua and can feature novel patterns of symmetry breaking in the early universe. In this talk, I will discuss the implications of such scenarios for electroweak scale cosmology, baryogenesis, and Higgs phenomenology. I will focus on two classes of models, one involving a gauge singlet scalar field and the other an inert SU(2) doublet scalar.

Collection/Series: 
Scientific Areas: 

 

Mercredi mai 27, 2015
Speaker(s): 

Identifying the nature of dark  matter is one of the most challenging problems in physics. There is a general consensus that dark matter is a weakly interacting particle and predominantly cold, yet the Cold Dark Matter (CDM) hypothesis remains to be verified.  I will show that next cosmological surveys could play a leading role in understanding the dark matter microphysics.

Collection/Series: 
Scientific Areas: 

 

Mardi mai 26, 2015
Speaker(s): 

In this talk I’ll discuss some of the recent developments in precision physics which will be useful for extracting the best physics results we can from LHC run II. I’ll mostly focus on a specific example regarding anomalous interactions of the Higgs boson.

Collection/Series: 
Scientific Areas: 

 

Mardi mai 26, 2015
Speaker(s): 

Massive neutral fermions can be realized in Nature as Majorana particles. Are neutrinos Majorana particles? Our most accepted theoretical prejudice can be verified by searching for neutrinoless double-beta decay. I will overview the current knowledge of the neutrino mass spectrum and discuss theoretical scenarios where cosmological data can contribute to resolve this challenging question. Some cosmological observables sensitive to neutrino masses are outlined.

Collection/Series: 
Scientific Areas: 

 

Mardi mai 19, 2015
Speaker(s): 

There have been recent claims that the weak gravity conjecture (WGC) rules out multi-field natural inflation. I review these claims and then show how 2-field natural inflation can be consistent with even the most stringent form of WGC. I also discuss my recent attempt at numerically proving the WGC via the conformal bootstrap.

Collection/Series: 
Scientific Areas: 

 

Mardi mai 12, 2015
Speaker(s): 

Super-massive black holes that grow at the center of dark matter halos distort the dark matter within their zone of influence into a steep density spike. This spike can give rise to strong enhancements of standard indirect detection signals, and can lead to qualitatively new windows onto the physics of the early universe. I will talk about potential dark matter signals from the Milky Way's central black hole, some astrophysical caveats, and the possible use of black holes as dark matter accelerators.

Collection/Series: 
Scientific Areas: 

 

Mardi mai 12, 2015
Speaker(s): 

Recent landmark measurement of the muonic hydrogen Lamb shift generated more questions than answers, as it stands in a sharp disagreement with what was predicted based on known properties of muons and protons. It adds on top of the existing anomalies in the muon sector (discrepancy in g-2 and in radiative muon capture). I will critically review some suggestions for the new physics explanations of these anomalies, and describe their implications.

Collection/Series: 
Scientific Areas: 

 

Vendredi mai 08, 2015
Speaker(s): 



Collection/Series: 
Scientific Areas: 

 

Mardi mai 05, 2015
Speaker(s): 

Astrophysical observations suggest that the majority of matter in the Universe is made up of novel Weakly Interacting Massive Particles (WIMPs). Such WIMPs are often predicted by extensions to the Standard Model. Efforts have been underway for more than two decades to detect WIMPs directly in detectors on earth. The challenge is great because of the small energies involved and the low interaction rates. The field has been driven by progress in detectors able to identify radioactive backgrounds.

Collection/Series: 
Scientific Areas: 

 

Mardi mai 05, 2015
Speaker(s): 

Can we learn about New Physics with astronomical and astro-particle data? Understanding how this is possible is key to unraveling one of the most pressing mysteries at the interface of cosmology and particle physics: the fundamental, particle nature of the dark matter.

Collection/Series: 
Scientific Areas: 

Pages