Conveners
Session 3
- Igor Tkachev (INR RAS)
Julian Heeck
(Université Libre de Bruxelles)
15/05/2017, 14:00
Presentation
An overview of the phenomenology of majorons (and familons) as dark matter and in connection with lepton flavor violation.
Ms
Rocío del Rey Bajo
(UAM)
15/05/2017, 14:20
Presentation
We study the leading effective interactions between the Standard Model fields and a generic singlet CP-odd (pseudo)Goldstone boson. Two possible frameworks for electroweak symmetry breaking are considered: linear and non-linear. For the latter case, the basis of leading effective operators is determined and compared with that for the linear expansion. Associated phenomenological signals at...
Dr
Oscar Straniero
(INAF (Istituto Nazionale di Astrofisica))
15/05/2017, 14:40
New evolutionary models of low-mass stars that include axion productions due to Primakoff, Bremsstrahlung and Compton scattering are presented. These set of models has been used to calculate isochrones, luminosity functions (LFs) and synthetic colour-magnitude (CM) diagrams to be compared with their observational counterparts, i.e. LFs and CM diagrams of Galactic Globular Clusters stars. Based...
Ralph Engel
(Karlsruhe Institute of Technology (KIT))
15/05/2017, 15:00
It has been proposed that an additional U(1) sector of hidden photons could account for the Dark Matter observed in the Universe. When passing through an interface of materials with different dielectric properties, hidden photons can give rise to photons whose wavelength is related to the mass of the hidden photons. In this contribution, we report on measurements covering the visible and...
Dr
Woohyun Chung
(IBS/CAPP)
15/05/2017, 15:20
CAPP’s flagship axion experiment, CULTASK has been built on a low vibration facility at Munji campus of KAIST in Korea. We have so far installed 4 dilution refrigerators with two 8T superconducting magnets, which allow us to explore axion mass range of 2~2.5 GHz and 1.35~1.6 GHz, respectively. A resonant cavity (10 cm OD) with a sapphire tuning rod driven by piezoelectric actuator system was...
Prof.
Jens Niemeyer
(University of Goettingen)
15/05/2017, 15:40
Presentation
Nonlinear structure formation with axion dark matter can be studied with cosmological simulations using different initial conditions (in the case of axion minicluster formation) and/or new computational methods to capture wave-like phenomena close to the de Broglie wavelength (in the case of ultralight axions). Some approaches for such simulations will be described and first results presented.
