W czwartek 30 XI 2017 serdecznie zapraszamy do udziału w konferencji Scalars 2017, tego dnia wykłady odbywają się w CENT III, w auli A+B, szczegóły na stronie
http://scalars2017.fuw.edu.pl.
room B0.14, Pasteura 5 at 12:15
Wojciech Hellwing (CFT PAN)
While the Earth-base laboratories keep trying very hard to shade some light on the nature of the elusive dark matter particles the other very promising avenue to test and/or falsify potential dark matter candidates resides in astrophysical observations. In this context our own Galaxy - the Milky Way - with its unique set of satellites shows potential to serve as an extraterrestrial laboratory for dark matter. The very physical nature of dark matter and especially the differences between the main candidate, the neutralino of Cold Dark Matter (CDM), and its currently strongest contestant, the sterile neutrino of Warm Dark Matter candidate, may lead to significant differences in the properties, distribution and abundance of dwarf galaxies. Such objects are dominated (by mass) by their host DM haloes and therefore provide a unique view on the physical properties of particle DM. I shall discuss our recent efforts to use the state-of-the-art galaxy formation hydrodynamical simulation scheme of the EAGLE project as well as high-resolution Copernicus Complexio N-body simulations to study the galaxy formation of Milky Way like systems in CDM and WDM scenarios. Our results render new insights on potential ways to use astronomical observations for falsifying the CDM paradigm and testing its competitors.
room B0.14, Pasteura 5 at 12:15
Kazuki Sakurai (IFT UW)
I present the recent study on natural and unnatural SUSY in light of the proton decay and gauge unification. We show that the low energy SUSY mass spectrum is linked to the proton decay via the unification scale, and future nucleon decay experiments will provide a non-trivial upper bound on the superpartner masses. We also show that the mirage mediation provides a consistent picture of natural SUSY. For unnatural SUSY, we present a systematic study on split SUSY and predict a unique spectrum, which could be around the corner of discovery.
room B0.14, Pasteura 5 at 12:15
Jay Hubisz (Syracuse University, New York)
The mass of the Higgs field can be set to zero dynamically in extra dimensions, where a ``radion'' field self-tunes the Higgs mass exactly to zero classically. Quantum fluctuations in the size of the extra dimension give rise to a non-vanishing but suppressed vacuum expectation value for the Higgs, breaking symmetries like those of the Standard Model spontaneously. An explicit 5D model for this type of Higgs sector is discussed.