Dark Interactions: Perspectives from Theory and Experiment

Session

Contributed Talks III

4 Oct 2018, 16:00

Physics Department, Bldg. 510, Large Seminar Room (Brookhaven National Laboratory)

Conveners

Contributed Talks III

• John Paul Chou (Rutgers University)

88. Search for light Dark Matter with NEWS-G

Konstantinos Nikolopoulos (University of Birmingham)

04/10/2018, 16:00

The New Experiments With Spheres-Gas (NEWS-G) is dedicated to the direct search for Dark Matter candidates in the 0.1 – 10 GeV range. The experiment uses the novel Spherical Proportional Counter detector, which exhibits a number of key features including: a) low energy thresholds, few tens of eV, owing to low detector capacitance independently of the volume and high gain operation; b) small...

89. Introducing the SnowBall Chamber, Supercooled Water for Dark Sector

Matthew Szydagis (SUNY Albany)

04/10/2018, 16:25

We have all heard of the cloud and bubble chambers of course, and the latter in the context of direct WIMP dark matter detection even. However, no one has explored a 3rd phase transition, into solid, until now that is. This talk will introduce the snowball chamber, which utilizes a supercooled liquid, just purified water in the prototype. An incoming particle triggers nucleation in the liquid,...

92. Title: Effects of a caustic ring of dark matter on the distribution of stars and interstellar gas

Sankha S Chakrabarty (Department of Physics, University of Florida)

04/10/2018, 16:50

Authors: Sankha S Chakrabarty and Pierre Sikivie

Caustic rings of dark matter with tricusp cross-section were predicted to lie in the galactic disk. In the self-similar evolution of the dark halo, their radii increase on cosmological time scales at a rate of order 1 kpc/Gyr. When a caustic ring passes through the orbit of a star, the orbit is strongly perturbed. We find that a star moving in...

93. Photoproduction of dark particles off electrons in the Compton process

Igal JAEGLE (University of Florida at Gainesville)

04/10/2018, 17:15