93 citations · 412 across the 10 of their papers we have counts for
10 papers
Molecular hydrogen in the z = 2.66 damped Lyman-alpha absorber toward Q J0643-5041
D. Albornoz Vásquez, H. Rahmani, P. Noterdaeme +3
We use high signal-to-noise ratio, high-resolution VLT-UVES data of Q J0643-5041 amounting to a total of more than 23 hours exposure time and fit the neutral hydrogen, metals and H…
Constraining the variation of fundamental constants at z ~ 1.3 using 21-cm absorbers
H. Rahmani, R. Srianand, N. Gupta +3
We present high resolution optical spectra obtained with the Ultraviolet and Visual Echelle Spectrograph (UVES) at the Very Large Telescope (VLT) and 21-cm absorption spectra obtai…
Regenerating WIMPs in the light of direct and indirect detection
Andrew J. Williams, Celine Boehm, Stephen M. West +1
There are several ways to explain the dark matter relic density other than by the ordinary freeze-out scenario. For example, the freeze-in mechanism may constitute an alternative f…
The 125 GeV Higgs in the NMSSM in light of LHC results and astrophysics constraints
Daniel Albornoz Vasquez, Genevieve Belanger, Celine Boehm +3
Recent LHC data suggest an excess in the Higgs decay channels into gamma gamma, W W and Z Z at roughly 125 GeV. The current excess in the diphoton channel is twice that expected fr…
The Higgs boson in the MSSM in light of the LHC
D. Albornoz Vasquez, G. Belanger, R. M. Godbole +1
We investigate the expectations for the light Higgs signal in the MSSM in different search channels at the LHC. After taking into account dark matter and flavor constraints in the…
MIMAC potential discovery and exclusion of neutralinos in the MSSM and NMSSM
Daniel Albornoz Vasquez
The MIMAC project aims to provide a nominal fluorine detector for directional detection of galactic dark matter recoil events. Its expected behavior reaches an important part of th…
Revisiting light neutralino scenarios in the MSSM
Daniel Albornoz Vasquez, Genevieve Belanger, Celine Boehm
We revisit the case of a light neutralino LSP in the framework of the MSSM. We consider a model with eleven free parameters. We show that all scenarios where the annihilation of li…
Astrophysical limits on light NMSSM neutralinos
Daniel Albornoz Vasquez, Genevieve Belanger, Celine Boehm
It was recently shown that light LSP neutralinos could be found in the framework of the NMSSM. These candidates would escape known Particle Physics constraints even though they are…
Can neutralinos in the MSSM and NMSSM scenarios still be light?
Daniel Albornoz Vasquez, Genevieve Belanger, Celine Boehm +2
Since the recent results of direct detection experiments at low mass, many authors have revisited the case of light (1 -10) GeV WIMPs. In particular, there have been a few attempts…
Signature of Sub GeV Dark Matter particles at LHC and TEVATRON
Daniel Albornoz Vasquez, Celine Boehm, John Idarraga
In this letter, we investigate the production of light dark matter particles at LHC in light of the model (N = 2 SUSY inspired) proposed in Ref. [1] and demonstrate that they will…