RT Journal Article
T1 Is the CMB cold spot a gate to extra dimensions?
A1 Ruiz Cembranos, José Alberto
A1 Cruz Dombriz, Álvaro de la
A1 Dobado González, Antonio
A1 López Maroto, Antonio
AB One of the most striking features found in the cosmic microwave background data is the presence of an anomalous cold spot (CS) in the temperature maps made by the Wilkinson Microwave Anisotropy Probe (WMAP). This CS has been interpreted as the result of the presence of a collapsing texture, perhaps coming from some early universe grand unified theory (GUT) phase transition. In this work we propose an alternative explanation based on a completely different kind of texture which appears in a natural way in a broad class of brane-world models. This type of texture, known as a brane-skyrmion, can be understood as a hole in the brane which makes it possible to pass through them along the extra-dimensional space. The typical scales needed for the proposed brane-skyrmions to correctly describe the observed CS can be as low as the electroweak scale.
PB IOP Publishing Ltd
SN 1475-7516
YR 2008
FD 2008-10
LK https://hdl.handle.net/20.500.14352/50749
UL https://hdl.handle.net/20.500.14352/50749
LA eng
NO Cembranos, J. A. R., et al. «Is the CMB cold spot a gate to extra dimensions?» Journal of Cosmology and Astroparticle Physics, vol. 2008, n.o 10, octubre de 2008, p. 039. DOI.org (Crossref), https://doi.org/10.1088/1475-7516/2008/10/039.
NO Dirección General de Investigación Científica y Técnica (España)
NO Comunidad de Madrid
NO Universidad Complutense de Madrid-Banco de Santander
DS Docta Complutense
RD 9 may 2025