Event calendar file
3-8 June 2012
Hotel Fiesta Americana
Mexico/General timezone
- pascos2012@pegaso.fisica.unam.mx
Support
Cosmology
Place
Location: Hotel Fiesta Americana
Address: Merida
Yucatan
Mexico
Room: Mérida
Date:
4 Jun 16:20 - 18:40
Conveners
-
- Dr. Niz, Gustavo
-
- Prof. de la Macorra, Axel
Timetable | Contribution List
Displaying 6
contributions
out of
6
There are self-accelerating solutions in massive gravity which can explain the present acceleration of the Universe in terms of the graviton mass. On these backgrounds, an enhanced symmetry removes the scalar and vector perturbations, leading to tensor modes only, which in principle, can be the only way to distinguish these massive gravity solutions from General Relativity with a cosmological cons
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Presented by Dr. Gustavo NIZ
on
4/6/2012
at
23:00
The curvaton scenario provides a simple explanation for the generation of the cosmological perturbations, however most works have focused on cases with rather trivial curvaton energy potentials, e.g. quadratic ones. In this talk I will present the rich phenomenology of curvatons by showing that non-quadratic curvatons exhibit new behaviors, leading to interesting signals in the resulting density p
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Presented by Dr. Takeshi KOBAYASHI
on
4/6/2012
at
17:40
Session:
Cosmology
We present neutrino mass bounds using 900,000 luminous galaxies with photometric redshifts measured from Sloan Digital Sky Survey III Data Release Eight (SDSS DR8). The galaxies have photometric redshifts between z = 0.45 and z = 0.65, and cover 10,000 square degrees and thus probe a volume of 3h^(−3)Gpc^3, enabling tight constraints to be derived on the amount of dark matter in the form of mass
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Presented by Ms. Elena GIUSARMA
on
4/6/2012
at
21:40
We analyze the dynamical system defined by a universe filled with a barotropic fluid plus a scalar field with modified kinetic term of the form L = F(X) − V ( phi). After a suitable choice of variables that allows us to study the phase space of the system we obtain the critical points and their stability. We present a particular model that possesses a large set of initial conditions consisten
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Presented by Dr. Jorge CERVANTES-COTA
on
4/6/2012
at
17:20
Session:
Cosmology
In recent years, both reactor neutrino experiments (Gallex, Sage,...)and short baseline oscillation experiments (MiniBooNE, LSND) have shown anomalies, which might be explained by a sterile neutrino with a mass difference squared of roughly 1eV^2.
Cosmology also seems to favour additional radiation, often dubbed Dark Radiation, and this radiation could also be explained by a sterile neutrino. H
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Presented by Mr. Thomas TRAM
on
4/6/2012
at
21:20
We study the toroidal dipole moment of the lightest neutralino in the constrained Minimal Supersymmetric Standard Model. The toroidal dipole moment is the only electromagnetic property of the neutralino. Since the neutralino is the LSP in many versions of the MSSM and therefore a candidate for dark matter, its characterization through its electromagnetic properties is important both for particle p
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Presented by Mr. Esteban Alejandro REYES PÉREZ MONTAÑEZ
on
4/6/2012
at
23:20
