Conveners
DM14: New Ideas in Sub-GeV Dark Matter
- Shigetaka Moriyama (ICRR, The University of Tokyo)
Dr
Angelo Esposito
(EPFL Lausanne CH)
9/11/19, 4:40 PM
Dark matter
Oral presentation in parallel session
We employ an effective field theory to study the detectability of sub-GeV dark matter through its interaction with the gapless excitations of superfluid 4He. In a quantum field theory language, the possible interactions between the dark matter and the superfluid phonon are solely dictated by symmetry. We compute the rate for the emission of one and two phonons, and show that these two...
David Osterman
(Brown University)
9/11/19, 5:00 PM
Dark matter
Oral presentation in parallel session
We describe a new detector for dark matter searches by direct detection based upon the quantum evaporation of He atoms from a cold surface and their detection using field ionization. The single atom sensitivity of the field ionization array and the $<1$ meV binding energy of a He atom to the surface of liquid He open the door for the detection of dark matter particles with mass as low as $1$...
Prof.
Kaixuan Ni
(University of California San Diego)
9/11/19, 5:20 PM
Dark matter
Oral presentation in parallel session
Two-phase noble liquid detectors, with large target masses and effective background reduction, are currently leading the dark matter direct detection for WIMP masses above a few GeV. Due to their sensitivity to single ionized electron signals, these detectors were shown to also have strong constraints for sub-GeV dark matter via their scattering on electrons. In fact, the most stringent direct...
Dr
Thomas McElroy
(McGill University)
9/11/19, 5:40 PM
Dark matter
Oral presentation in parallel session
The Light-only Liquid Xenon (LoLX) project aims to study the properties of light emission in liquid xenon (LXe). Investigating timing characteristics of both the scintillation and Cherenkov light, LoLX will explore the abilities of single-phase LXe detectors as particle detectors and in medical imaging devices. The first phase of the LoLX detector consists of 24 Hamamatsu VUV4 Silicon...
Dr
Mukesh Kumar Pandey
(1Department of Physics, National Taiwan University, Taipei 10617, Taiwan)
9/11/19, 6:00 PM
Dark matter
Oral presentation in parallel session
Scattering of light dark matter (LDM) particles with atomic electrons is studied in the context of effective field theory. Contact and long-range interactions between dark matter and an electron are both considered. A state-of-the-art many-body method is used to evaluate spin independent atomic ionization cross sections of LDM-electron scattering. New upper limits are derived on parameter...
Dr
Johann Marton
(Senior Scientist)
9/11/19, 6:20 PM
Other related topics
Oral presentation in parallel session
The VIP2 (VIolation of the Pauli Exclusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) is testing standard quantum mechanics by searching for possible violation of the Pauli Exclusion Principle (PEP) – a consequence of the spin statistics theorem. Due to the high sensitivity it can also test present models of quantum gravity, which can embed PEP violations.
VIP2 is...
