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Title: Gravitational-wave stochastic background from kinks and cusps on cosmic strings

Journal Article · · Physical Review. D, Particles Fields
;  [1];  [2]
  1. Department of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
  2. Center for Gravitation and Cosmology, Department of Physics, P.O. Box 413, University of Wisconsin-Milwaukee, Wisconsin 53201 (United States)

We compute the contribution of kinks on cosmic string loops to stochastic background of gravitational waves (SBGW). We find that kinks contribute at the same order as cusps to the SBGW. We discuss the accessibility of the total background due to kinks as well as cusps to current and planned gravitational-wave detectors, as well as to the big bang nucleosynthesis (BBN), the cosmic microwave background (CMB), and pulsar timing constraints. As in the case of cusps, we find that current data from interferometric gravitational-wave detectors, such as LIGO, are sensitive to areas of parameter space of cosmic string models complementary to those accessible to pulsar, BBN, and CMB bounds.

OSTI ID:
21409743
Journal Information:
Physical Review. D, Particles Fields, Vol. 81, Issue 10; Other Information: DOI: 10.1103/PhysRevD.81.104028; (c) 2010 The American Physical Society; ISSN 0556-2821
Country of Publication:
United States
Language:
English