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Bengochea, G.R. "Observational information for f(T) theories and dark torsion" (2011) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 695(5):405-411
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Abstract:

In the present work we analyze and compare the information coming from different observational data sets in the context of a sort of f(T) theories. We perform a joint analysis with measurements of the most recent type Ia supernovae (SNe Ia), Baryon Acoustic Oscillation (BAO), Cosmic Microwave Background radiation (CMB), Gamma-Ray Bursts data (GRBs) and Hubble parameter observations (OHD) to constraint the only new parameter these theories have. It is shown that when the new combined BAO/CMB parameter is used to put constraints, the result is different from previous works. We also show that when we include Observational Hubble Data (OHD) the simpler ΛCDM model is excluded to one sigma level, leading the effective equation of state of these theories to be of phantom type. Also, analyzing a tension criterion for SNe Ia and other observational sets, we obtain more consistent and better suited data sets to work with these theories. © 2010 Elsevier B.V.

Registro:

Documento: Artículo
Título:Observational information for f(T) theories and dark torsion
Autor:Bengochea, G.R.
Filiación:Instituto de Astronomía y Física del Espacio (IAFE), CC 67, Suc. 28, 1428 Buenos Aires, Argentina
Palabras clave:Dark energy experiments; Dark energy theory; Modified gravity
Año:2011
Volumen:695
Número:5
Página de inicio:405
Página de fin:411
DOI: http://dx.doi.org/10.1016/j.physletb.2010.11.064
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v695_n5_p405_Bengochea

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Citas:

---------- APA ----------
(2011) . Observational information for f(T) theories and dark torsion. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 695(5), 405-411.
http://dx.doi.org/10.1016/j.physletb.2010.11.064
---------- CHICAGO ----------
Bengochea, G.R. "Observational information for f(T) theories and dark torsion" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 695, no. 5 (2011) : 405-411.
http://dx.doi.org/10.1016/j.physletb.2010.11.064
---------- MLA ----------
Bengochea, G.R. "Observational information for f(T) theories and dark torsion" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 695, no. 5, 2011, pp. 405-411.
http://dx.doi.org/10.1016/j.physletb.2010.11.064
---------- VANCOUVER ----------
Bengochea, G.R. Observational information for f(T) theories and dark torsion. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2011;695(5):405-411.
http://dx.doi.org/10.1016/j.physletb.2010.11.064