2026-06-27T22:46:28Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/449192023-08-27T23:06:45Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Ruiz Cembranos, José Alberto
2023-06-20T04:06:23Z
2023-06-20T04:06:23Z
2011
1742-6588
10.1088/1742-6596/315/1/012004
https://hdl.handle.net/20.500.14352/44919
http://dx.doi.org/10.1088/1742-6596/315/1/012004
http://iopscience.iop.org/
There is a non-trivial four-derivative extension of the gravitational spectrum that is free of ghosts and phenomenologically viable. It is the so called R^2-gravity since it is defined by the only addition of a term proportional to the square of the scalar curvature. Just the presence of this term does not improve the ultraviolet behaviour of Einstein gravity but introduces one additional scalar degree of freedom that can account for the dark matter of our Universe.
eng
Atribución 3.0 España
R^2 dark matter
journal article
URL
https://docta.ucm.es/bitstreams/61bbbd63-af0b-4995-9154-a50a7f1d2b71/download
File
MD5
9c649f63d2131847d16d85803cd1c4f2
376736
application/pdf
Cembranos,JAR24libre.pdf
URL
https://docta.ucm.es/bitstreams/384bdaa5-72cd-4ee9-a186-3541d7f45c78/download
File
MD5
d8c1a1f08669cc131ee3c21e502a64e7
18915
text/plain
Cembranos,JAR24libre.pdf.txt