scholarly journals Light Higgs boson, light dark matter, and gamma rays

2010 ◽  
Vol 82 (9) ◽  
Author(s):  
Vernon Barger ◽  
Yu Gao ◽  
Mathew McCaskey ◽  
Gabe Shaughnessy
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Gamma Rays ◽  
Light Higgs Boson

scholarly journals Connection of gamma rays, dark matter, and Higgs boson searches at the LHC

2012 ◽  
Vol 86 (7) ◽  
Author(s):  
J. D. Ruiz-Alvarez ◽  
C. A. de S. Pires ◽  
Farinaldo S. Queiroz ◽  
D. Restrepo ◽  
P. S. Rodrigues da Silva
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Gamma Rays

scholarly journals Exploring SUSY light Higgs boson scenarios via dark matter experiments

2010 ◽  
Vol 2010 (12) ◽  
pp. 018-018 ◽  
Author(s):  
Debottam Das ◽  
Andreas Goudelis ◽  
Yann Mambrini
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Light Higgs Boson

Neutralino dark matter in light Higgs boson scenario

2008 ◽  
Vol 663 (4) ◽  
pp. 330-333 ◽  
Author(s):  
Masaki Asano ◽  
Shigeki Matsumoto ◽  
Masato Senami ◽  
Hiroaki Sugiyama
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Light Higgs Boson

scholarly journals Neutralino Dark Matter in Light Higgs Boson Scenario

2008 ◽  
Author(s):  
Masaki Asano ◽  
Shigeki Matsumoto ◽  
Masato Senami ◽  
Hiroaki Sugiyama ◽  
Pyungwon Ko ◽  
...  
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Light Higgs Boson

scholarly journals On a Possible Origin of the Gamma-ray Excess around the Galactic Center

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1432
Author(s):  
Dmitry O. Chernyshov ◽  
Andrei E. Egorov ◽  
Vladimir A. Dogiel ◽  
Alexei V. Ivlev
Keyword(s):  
Dark Matter ◽  
Gamma Rays ◽  
Molecular Clouds ◽  
Alternative Explanation ◽  
Gamma Ray ◽  
Galactic Center ◽  
The Self ◽  
Large Area ◽  
Mhd Turbulence ◽  
The Standard Model

Recent observations of gamma rays with the Fermi Large Area Telescope (LAT) in the direction of the inner galaxy revealed a mysterious excess of GeV. Its intensity is significantly above predictions of the standard model of cosmic rays (CRs) generation and propagation with a peak in the spectrum around a few GeV. Popular interpretations of this excess are that it is due to either spherically distributed annihilating dark matter (DM) or an abnormal population of millisecond pulsars. We suggest an alternative explanation of the excess through the CR interactions with molecular clouds in the Galactic Center (GC) region. We assumed that the excess could be imitated by the emission of molecular clouds with depleted density of CRs with energies below ∼10 GeV inside. A novelty of our work is in detailed elaboration of the depletion mechanism of CRs with the mentioned energies through the “barrier” near the cloud edge formed by the self-excited MHD turbulence. This depletion of CRs inside the clouds may be a reason for the deficit of gamma rays from the Central Molecular Zone (CMZ) at energies below a few GeV. This in turn changes the ratio between various emission components at those energies and may potentially absorb the GeV excess by a simple renormalization of key components.

DARK MATTER SEARCH WITH GAMMA RAYS: THE EXPERIMENTS EGRET AND GLAST

2002 ◽  
Vol 17 (12n13) ◽  
pp. 1829-1840 ◽  
Author(s):  
ALDO MORSELLI
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Minimal Supersymmetric Standard Model ◽  
Gamma Rays ◽  
Galactic Center ◽  
Direct Detection ◽  
Model Parameters ◽  
Dark Matter Search

The direct detection of annihilation products in cosmic rays offers an alternative way to search for supersymmetric dark matter particles candidates. The study of the spectrum of gamma-rays, antiprotons and positrons offers good possibilities to perform this search in a significant portion of the Minimal Supersymmetric Standard Model parameters space. In particular the EGRET team have seen a convincing signal for a strong excess of emission from the galactic center that have not easily explanation with standard processes. We will review the achievable limits with the experiment GLAST taking into accounts the LEP results and we will compare this method with the antiproton and positrons experiments, the direct underground detection and with future experiments at LHC.

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