Dark Solar Wind

by Dr Erwin H. Tanin (Johns Hopkins University)

Wednesday 14 Sept 2022, 10:00 → 12:00 Asia/Shanghai

Tsung-Dao Lee library/Fourth Floor-410 - 410# Meeting Room (Tsung-Dao Lee Library)

Abstract: 

We study the solar emission of light dark sector particles that self-interact strongly enough to self-thermalize. The resulting outflow behaves like a fluid which accelerates under its own thermal pressure to highly relativistic bulk velocities in the solar system. Compared to the ordinary non-interacting scenario, the local outflow has a much higher number density and correspondingly a much lower average energy per particle. We show how this generic phenomenon arises in a dark sector comprised of millicharged particles strongly self-interacting via a dark photon. The millicharged plasma wind emerging in this model has novel yet predictive signatures that encourages new experimental directions. This phenomenon demonstrates how a small step away from the simplest models can lead to radically different outcomes and thus motivates a broader search for dark sector particles.

Brief biography:  
-PhD in Physics at Johns Hopkins University, 2019-present
-Msc in Physics at Swiss Federal Institute of Technology Lausanne, 2019

Zoom Meeting:
https://cern.zoom.us/j/62409979525?pwd=aEROWURUQzlQK3Vla2lXZWpuc2hSdz09

Meeting ID: 624 0997 9525
Passcode: 620225

Dark_Solar_Wind_TDLI_SJTU.pdf