Department of Particle Physics and Astrophysics

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Events

Colloquia

October 22, 2020
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
From Ultralight Dark Matter to Snowballs in Hell: a Tour in Particle Astrophysics
Kfir Blum
WIS

Event Information

Title:
From Ultralight Dark Matter to Snowballs in Hell: a Tour in Particle Astrophysics
Details:
WIS
Lecturer:
Kfir Blum
Date:
October 22, 2020
Time:
11:15:00 - 12:30:00
Location:
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
Abstract:
Astrophysical phenomena play a definitive role in our understanding of fundamental particle physics, and vice-verse. I will present two lines of research, showcasing the interplay between particle physics theory and astrophysics. In the first half of the talk, I will show how the viable parameter space for dark matter can be established using gravity alone. At the lowest end of the possible range for the dark matter particle mass, the de Broglie wavelength of ultralight dark matter (ULDM) attains astronomical scales. The ensuing wave mechanics phenomena can be tested observationally in a variety of astrophysical systems. I will describe a search for the imprint of ULDM on the gas kinematics of low-surface-brightness galaxies, leading to an absolute lower bound on the mass of dark matter. A host of other systems, ranging from supermassive black holes to gravitational lensing, offer promising means to advance the search for ULDM by orders of magnitude. In the second half of the talk, I will show how an analysis of cosmic ray antimatter — long considered a smoking gun for dark matter in the TeV range — has taken a surprising turn, leading us to new theoretical insights on the problem of the origin of loosely-bound nuclei in hadronic collisions (sometimes referred to as ``Snowballs in Hell”). The resulting research programme, now explored at the Large Hadron Collider, offers a bridge between two-particle correlation analyses to the study of nuclear clusters.

Colloquia

November 05, 2020
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
TBA
Efi Efrati
WIS

Event Information

Title:
TBA
Details:
WIS
Lecturer:
Efi Efrati
Date:
November 05, 2020
Time:
11:15:00 - 12:30:00
Location:
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
Abstract:
TBA

Colloquia

November 19, 2020
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
TBA
Ofer Firstenberg
WIS

Event Information

Title:
TBA
Details:
WIS
Lecturer:
Ofer Firstenberg
Date:
November 19, 2020
Time:
11:15:00 - 12:30:00
Location:
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
Abstract:
TBA

Colloquia

December 03, 2020
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
TBA
Ady Stern

Event Information

Title:
TBA
Lecturer:
Ady Stern
Date:
December 03, 2020
Time:
11:15:00 - 12:30:00
Location:
https://weizmann.zoom.us/j/92790893230?pwd=VlRjVzkvaGZ5YWRvcXFGWXVXZ3dXdz09
Abstract:
TBA