Conveners
Afternoon 11
- Reyco Henning
Prof.
Horst Fischer
(ALU Freiburg, Physikalisches Institut), Prof.
Marc Schumann
(Univertity of Freiburg)
03/06/2019, 14:30
Introductory Remarks
Dr
Rakshya Khatiwada
(Fermilab)
03/06/2019, 14:40
Oral
This talk will give an overview of the cryogenic detector, particularly cold electronics for the most sensitive experiment to probe the QCD axion to date, Axion Dark Matter eXperiment, (ADMX). The detector technology includes a dilution refrigerator operated at 90mK and quantum-noise-limited amplifiers which contribute minimally to the system noise temperature thereby increasing the...
Dr
Julia Vogel
(LLNL)
03/06/2019, 15:00
Oral
More than 80 years after the postulation of dark matter, its nature remains one of the fundamental questions in cosmology waiting to be answered. Axions have taken the spotlight in recent years and are currently one of the leading candidates for the hypothetical, non-baryonic dark matter expected to account for about 25% of the energy density of the Universe. Especially in the light of the...
Prof.
Ariel Zhitnitsky
(University of British Columbia)
03/06/2019, 15:20
Oral
I overview the dark matter model offering a very natural explanation of a number (naively unrelated) problems in cosmology: the observed relation $\Omega_{\rm DM}\sim\Omega_{\rm visible}$, the observed asymmetry between matter and antimatter in the Universe, known as the ``baryogenesis" problem, the so called "Solar Corona Mystery", the ``Primordial Lithium Puzzle" to name just a few....
Dr
Joshua Eby
(Weizmann Institute of Science)
03/06/2019, 15:40
Oral
Light ($m<$ eV) scalar particles, notably axions and relaxions, make interesting dark matter (DM) candidates, not least because they modify substructure within galaxies. Due to high occupation numbers typical of such candidates, it well known that clumps of scalar field known as boson stars can form, supported by a balance of self-gravity against gradient energy. I will briefly review recent...
