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SUMMARY:Silk damping in induced gravitational waves: a novel probe of new 
 physics
DTSTART;VALUE=DATE-TIME:20261024T064000Z
DTEND;VALUE=DATE-TIME:20261024T070000Z
DTSTAMP;VALUE=DATE-TIME:20261025T024907Z
UID:indico-contribution-3018@indico.itp.ac.cn
DESCRIPTION:Speakers: Yu Yan-Heng (HIAs\, UCAS)\nThe early universe is a n
 atural laboratory for high-energy physics\, and gravitational waves\, as d
 irect probes of this epoch\, inherently carry rich information related to 
 high-energy physics. Silk damping\, resulting from dissipation in the cosm
 ic fluid\, is a significant physical phenomenon in the early universe. In 
 this talk\, I will introduce our first study on Silk damping in induced gr
 avitational waves. Silk damping notably suppresses the spectrum of induced
  gravitational waves on scales comparable to a diffusion scale at the deco
 upling of weakly-interacting particles. This characteristic suppression of
 fers a novel and general observable for detecting the underlying particle 
 interaction\, especially for those mediated by heavy gauge bosons beyond t
 he Standard Model. We anticipate that pulsar timing arrays are sensitive t
 o gauge bosons with masses ∼ 10³−10⁴ GeV\, while space- and ground-
 based interferometers to those with masses ∼ 10⁷−10¹² GeV\, leadin
 g to essential complements to traditional high-energy physics experiments.
 \n\nhttps://indico.itp.ac.cn/event/427/contributions/3018/
LOCATION:
URL:https://indico.itp.ac.cn/event/427/contributions/3018/
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