HIP NEWS October 26th 2015
DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
Tuesday 27 October 2015 at 10.15 in A315
Alexander Merle (MPI, Munich)
Sterile Neutrino Dark Matter: From Particle to Astrophysics and back
Abstract: In the absence of a clear WIMP signal, we should think about alternative candidates for Dark Matter. A very well motivated example is a (up to now hypothetical) sterile neutrino with a mass of a few keV. In this talk, I will give an overview over the topic of keV sterile neutrino Dark Matter, thereby exploring all corners from Dark Matter production in the early Universe over astrophysical bounds and neutrino phenomenology to particle physics model building aspects. While WIMPs are not dead yet, they have to learn how to live in the neighbourhood of serious competitors.
Wednesday 28 October 2015 at 14:15 in A315
Tommi Tenkanen (Helsinki)
Cosmic Inflation and Dark Matter
Abstract: We show that dark matter abundance and inflationary scale could be intimately related. Standard Model extensions with Higgs mediated couplings to new physics typically contain extra scalars whose excursions at the end of inflation can be very large. If their coupling to the Standard Model is weak, they will not thermalize and may easily constitute too much dark matter. As an example we consider Standard Model extended by a real singlet scalar and a singlet fermion. We discuss the field dynamics during inflation together with the post-inflationary dark matter production mechanisms and derive stringent constraints on viable mass scales and coupling values.
H2020 Marie Sklodowska-Curie ITN info session for the 2016 call applicants
Time: 29.10.2015 at 13-15
Further information on MSCA is available on https://flamma.helsinki.fi/en/EUframeworkprogrammes/HY309934
Particle Physics Day 2015
Friday 30 October 2015 at 10:15 – 15:00 in Exactum CK112
Fortcoming training for employees
Finnish Working Culture 6.11.2015 at 9:00 – 16:00
The course is targeted for all new international employees of the University of Helsinki.
Last sign-up date: 26.10.2015
Sign up in http://www.helsinki.fi/trainingcalendar ( Staff Training Calendar HENKKA)
A. Cabo 2.10. – 27.10. (AT)
D. Daverio 25.10. – 6.11. (KR)
A. Merle 26.10. – 28.10. (TT)
Y. Zhu 28.10. – 30.10. (AV)