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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-6400
DTSTART:20210416T190000Z
DTEND:20210416T200000Z
DTSTAMP:20260414T231313Z
LAST-MODIFIED:20210413T163829Z
LOCATION:For zoom link\, sign up at: https://groups.google.com/a/g-gro
 ups.wisc.edu/d/forum/theoryseminars/join
SUMMARY:The Impact of a Midband Gravitational Wave Experiment On Detec
 tability of Cosmological Stochastic Gravitational Wave Backgrounds\, T
 heory Seminar (High Energy/Cosmology)\, Yanou Cui\, UC Riverside
DESCRIPTION:I will discuss the impact of a future midband gravitationa
 l wave experiment on improving detectability of a cosmologically sourc
 ed stochastic GW background. Specific proposed midband experiments con
 sidered are TianGo\, B-DECIGO and AEDGE. We propose a combined power-l
 aw integrated sensitivity (CPLS) curve combining GW experiments over d
 ifferent frequency bands\, which shows significant improvement in sens
 itivity to SGWBs with the aid of a midband experiment. We consider GW 
 emission from cosmic strings and phase transitions as benchmark exampl
 es of cosmological SGWBs. We explicitly model various astrophysical SG
 WB sources\, most importantly from unresolved black hole mergers. Base
 d on analysis using Markov Chain Monte Carlo\, we demonstrated that mi
 dband experiments can\, when combined with LIGO A+ and LISA\, can sign
 ificantly improve sensitivities to cosmological SGWBs and better separ
 ate them from astrophysical SGWBs.
URL:https://www.physics.wisc.edu/events/?id=6400
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