CERN Accelerating science

Article
Report number	arXiv:1610.06481 ; ACFI-T16-19 ; UMN-TH-3608-16 ; CERN-TH-2016-222 ; KCL-PH-TH-2016-58 ; IFT-UAM-CSIC-16-104
Title	Science with the space-based interferometer LISA. IV: Probing inflation with gravitational waves
Author(s)	Bartolo, Nicola (Padua U. ; INFN, Padua ; Padua Observ.) ; Caprini, Chiara (APC, Paris) ; Domcke, Valerie (APC, Paris) ; Figueroa, Daniel G. (CERN) ; Garcia-Bellido, Juan (Madrid, IFT) ; Guzzetti, Maria Chiara (Padua U. ; INFN, Padua) ; Liguori, Michele (Padua U. ; INFN, Padua ; Padua Observ.) ; Matarrese, Sabino (Padua U. ; INFN, Padua ; Padua Observ. ; GSSI, Aquila) ; Peloso, Marco (Minnesota U.) ; Petiteau, Antoine (APC, Paris) ; Ricciardone, Angelo (Stavanger U.) ; Sakellariadou, Mairi (King's Coll. London) ; Sorbo, Lorenzo (Massachusetts U., Amherst) ; Tasinato, Gianmassimo (Swansea U.)
Publication	2016-12-14
Imprint	20 Oct 2016
Number of pages	63
Note	53 pages, 18 figures; v2: minor changes to match published version
In:	JCAP 12 (2016) 026
DOI	10.1088/1475-7516/2016/12/026
Subject category	Astrophysics and Astronomy
Abstract	We investigate the potential for the LISA space-based interferometer to detect the stochastic gravitational wave background produced from different mechanisms during inflation. Focusing on well-motivated scenarios, we study the resulting contributions from particle production during inflation, inflationary spectator fields with varying speed of sound, effective field theories of inflation with specific patterns of symmetry breaking and models leading to the formation of primordial black holes. The projected sensitivities of LISA are used in a model-independent way for various detector designs and configurations. We demonstrate that LISA is able to probe these well-motivated inflationary scenarios beyond the irreducible vacuum tensor modes expected from any inflationary background.
Copyright/License	arXiv nonexclusive-distrib. 1.0 Preprint: © 2016-2024 CERN (License: CC-BY-4.0)

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