Particle Physics Beyond Colliders

01:07:05

Description
When we think about Particle physics the first thing that comes to mind is colliders and high energies. Recently there have been several proposals of low-energy precision experiments that can also look for new particles, new forces, and the Dark Matter of the Universe in a way that is complementary to collider searches. In this talk, I propose two different experiments that search for a type of Dark Matter naturally arising in String Theory. In String Theory fundamental constants, such as the electron mass or charge, are determined by fields known as moduli. When these fields are the Dark Matter of our Universe, they cause the fundamental constants to oscillate with a frequency set by the Dark Matter mass. For frequencies smaller than 1 Hz atomic clocks with their unprecedented sensitivity can pick up these oscillations. For higher frequencies above 1 kHz, Dark Matter can excite acoustic modes in resonant mass detectors originally designed to detect gravitational radiation from astrophysical sources. Both techniques extend searches for this type of Dark Matter by several orders of magnitude in the near future.

Description

When we think about Particle physics the first thing that comes to mind is colliders and high energies. Recently there have been several proposals of low-energy precision experiments that can also look for new particles, new forces, and the Dark Matter of the Universe in a way that is complementary to collider searches. In this talk, I propose two different experiments that search for a type of Dark Matter naturally arising in String Theory. In String Theory fundamental constants, such as the electron mass or charge, are determined by fields known as moduli. When these fields are the Dark Matter of our Universe, they cause the fundamental constants to oscillate with a frequency set by the Dark Matter mass. For frequencies smaller than 1 Hz atomic clocks with their unprecedented sensitivity can pick up these oscillations. For higher frequencies above 1 kHz, Dark Matter can excite acoustic modes in resonant mass detectors originally designed to detect gravitational radiation from astrophysical sources. Both techniques extend searches for this type of Dark Matter by several orders of magnitude in the near future.

Details
Title	Particle Physics Beyond Colliders
Creator	University of California, Berkeley. Dept. of Physics
Published	Berkeley, CA, University of California, Berkeley, Dept. of Physics, February 13, 2017
Full Collection Name	Physics Colloquia
Type	Video
Format	Lecture.
Extent	1 streaming video file
Other Physical Details	digital, sd., col.
Archive	Physics Library
Note	Recorded at a colloquium held on February 13, 2017, sponsored by the Dept. of Physics, University of California, Berkeley. originally produced as an .mts file in 2017 Speakers: Asimina Arvanitaki.
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Collection	Physics Colloquia
Tracks	colloquia/2-13-17Arvanitaki.mp4 01:07:05
Linked Resources	View record in Digital Collections.

Particle Physics Beyond Colliders

Description

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