Davis, A.-C. and Li, B. and Mota, D. F. and Winther, H. A. (2012) 'Structure formation in the symmetron model.', Astrophysical journal., 748 (1). p. 61.
Scalar fields, strongly coupled to matter, can be present in nature and still be invisible to local experiments if they are subject to a screening mechanism. The symmetron is one such mechanism that relies on restoration of a spontaneously broken symmetry in regions of high density to shield the scalar fifth force. We have investigated structure formation in the symmetron model by using N-body simulations and find observable signatures in both the linear and nonlinear matter power spectrum and on the halo mass function. The mechanism for suppressing the scalar fifth force in high-density regions is also found to work very well.
|Keywords:||Cosmology: miscellaneous, Cosmology: theory, Large-scale structure of Universe.|
|Full text:||(VoR) Version of Record|
Download PDF (3238Kb)
|Publisher Web site:||http://dx.doi.org/10.1088/0004-637X/748/1/61|
|Publisher statement:||© 2012. The American Astronomical Society. All rights reserved. Printed in the U.S.A.|
|Date accepted:||No date available|
|Date deposited:||02 May 2014|
|Date of first online publication:||March 2012|
|Date first made open access:||No date available|
Save or Share this output
|Look up in GoogleScholar|