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Constraints on Cosmic Strings Using Data from the Third Advanced LIGO–Virgo Observing Run
Name
PhysRevLett.126.241102.pdf
Description
Published version
Size
944.97 KB
Format
Adobe PDF
Checksum (MD5)
3de8ba30b87d8aab254b2ba5bd0a9bc2
Date Issued
2021
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
2021. "Constraints on Cosmic Strings Using Data from the Third Advanced LIGO–Virgo Observing Run." Physical Review Letters, 126 (24).
Version
Final published version
Abstract
We search for gravitational-wave signals produced by cosmic strings in the
Advanced LIGO and Virgo full O3 data set. Search results are presented for
gravitational waves produced by cosmic string loop features such as cusps,
kinks and, for the first time, kink-kink collisions.cA template-based search
for short-duration transient signals does not yield a detection. We also use
the stochastic gravitational-wave background energy density upper limits
derived from the O3 data to constrain the cosmic string tension, $G\mu$, as a
function of the number of kinks, or the number of cusps, for two cosmic string
loop distribution models.cAdditionally, we develop and test a third model which
interpolates between these two models. Our results improve upon the previous
LIGO-Virgo constraints on $G\mu$ by one to two orders of magnitude depending on
the model which is tested. In particular, for one loop distribution model, we
set the most competitive constraints to date, $G\mu\lesssim 4\times 10^{-15}$.
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DOI of Published Version
10.1103/PHYSREVLETT.126.241102
