scholarly journals Gaugino mass nonuniversality and dark matter in supergravity, strings, and D-brane models

2001 ◽  
Vol 64 (12) ◽  
Author(s):  
Achille Corsetti ◽  
Pran Nath
Keyword(s):  
Dark Matter ◽  
Gaugino Mass ◽  
Brane Models

scholarly journals Mixed Higgsino Dark Matter from a reduced SU(3) gaugino mass: consequences for dark matter and collider searches

2006 ◽  
Vol 2006 (04) ◽  
pp. 041-041 ◽  
Author(s):  
Howard Baer ◽  
Azar Mustafayev ◽  
Eun-Kyung Park ◽  
Stefano Profumo ◽  
Xerxes Tata
Keyword(s):  
Dark Matter ◽  
Gaugino Mass

scholarly journals Non-universal gaugino mass GUT models in the light of dark matter and LHC constraints

2014 ◽  
Vol 2014 (2) ◽  
Author(s):  
Joydeep Chakrabortty ◽  
Subhendra Mohanty ◽  
Soumya Rao
Keyword(s):  
Dark Matter ◽  
Gaugino Mass

scholarly journals Dark matter from Starobinsky supergravity

2017 ◽  
Vol 32 (15) ◽  
pp. 1740002 ◽  
Author(s):  
Andrea Addazi ◽  
Maxim Yu. Khlopov
Keyword(s):  
Dark Matter ◽  
Cold Dark Matter ◽  
Model Building ◽  
The Other ◽  
Unified Theory ◽  
Grand Unified Theory ◽  
Slow Roll ◽  
Dark Matters ◽  
Brane Models ◽  
The Right

We review our recent results on dark matter from Starobinsky supergravity. In this context, a natural candidate for cold dark matter is the gravitino. On the other hand, assuming the supersymmetry broken at scales much higher than the electroweak scale, gravitinos are superheavy particles. In this case, they may be non-thermally produced during inflation, in turn originated by the scalaron field with Starobinsky’s potential. Assuming gravitinos as Lightest Supersymmetric Particles (LSSP), the non-thermal production naturally accounts for the right amount of cold dark matter. Metastability of the gravitino LSSP leads to observable effects of their decay, putting constraints on the corresponding Unstable or Decaying Dark Matters scenarios. In this model, the gravitino mass is controlled by the inflaton field and it runs with it. This implies that a continuous spectrum of superheavy gravitinos is produced during the slow-roll epoch. Implications in phenomenology, model building in Grand Unified Theory (GUT) scenarios, intersecting D-brane models and instantons in string theories are discussed.

scholarly journals Mixed neutralino dark matter in nonuniversal gaugino mass models

2009 ◽  
Vol 79 (9) ◽  
Author(s):  
Utpal Chattopadhyay ◽  
Debottam Das ◽  
D. P. Roy
Keyword(s):  
Dark Matter ◽  
Gaugino Mass

scholarly journals Mixed higgsino dark matter from a large SU(2) gaugino mass

2007 ◽  
Vol 2007 (10) ◽  
pp. 088-088 ◽  
Author(s):  
Howard Baer ◽  
Azar Mustafayev ◽  
Heaya Summy ◽  
Xerxes Tata
Keyword(s):  
Dark Matter ◽  
Gaugino Mass

scholarly journals Higgsino dark matter in nonuniversal gaugino mass models

2015 ◽  
Vol 91 (3) ◽  
Author(s):  
Manimala Chakraborti ◽  
Utpal Chattopadhyay ◽  
Soumya Rao ◽  
D. P. Roy
Keyword(s):  
Dark Matter ◽  
Gaugino Mass

scholarly journals A minimal supersymmetric SU(5) missing-partner model

2021 ◽  
Vol 81 (6) ◽  
Author(s):  
John Ellis ◽  
Jason L. Evans ◽  
Natsumi Nagata ◽  
Keith A. Olive
Keyword(s):  
Dark Matter ◽  
Supersymmetry Breaking ◽  
Gauge Group ◽  
Parameter Space ◽  
Higgs Mass ◽  
Matter Density ◽  
High Scale ◽  
Gaugino Mass ◽  
Gut Scale ◽  
Soft Supersymmetry Breaking

AbstractWe explore a missing-partner model based on the minimal SU(5) gauge group with $$\mathbf{75} $$ 75 , $$\mathbf{50} $$ 50 and $$\overline{\mathbf{50 }}$$ 50 ¯ Higgs representations, assuming a super-GUT CMSSM scenario in which soft supersymmetry-breaking parameters are universal at some high scale $$M_{\mathrm{in}}$$ M in above the GUT scale $$M_{\mathrm{GUT}}$$ M GUT . We identify regions of parameter space that are consistent with the cosmological dark matter density, the measured Higgs mass and the experimental lower limit on $$\tau (p \rightarrow K^+ \nu )$$ τ ( p → K + ν ) . These constraints can be satisfied simultaneously along stop coannihilation strips in the super-GUT CMSSM with $$\tan \beta \sim $$ tan β ∼ 3.5–5 where the input gaugino mass $$m_{1/2} \sim $$ m 1 / 2 ∼ 15–25 TeV, corresponding after strong renormalization by the large GUT Higgs representations between $$M_{\mathrm{in}}$$ M in and $$M_{\mathrm{GUT}}$$ M GUT to $$m_{\mathrm{LSP}}, m_{{\tilde{t}}_1} \sim $$ m LSP , m t ~ 1 ∼ 2.5–5 TeV and $$m_{{\tilde{g}}} \sim $$ m g ~ ∼ 13–20 TeV, with the light-flavor squarks significantly heavier. We find that $$\tau (p \rightarrow K^+ \nu ) \lesssim 3 \times 10^{34}$$ τ ( p → K + ν ) ≲ 3 × 10 34  years throughout the allowed range of parameter space, within the range of the next generation of searches with the JUNO, DUNE and Hyper-Kamiokande experiments.

SEARCHING FOR LIGHT WEAKLY INTERACTING MASSIVE PARTICLES AT THE LARGE HADRON COLLIDER

2013 ◽  
Vol 23 ◽  
pp. 335-344
Author(s):  
S. SCOPEL
Keyword(s):  
Dark Matter ◽  
Large Hadron Collider ◽  
Galactic Halo ◽  
Hadron Collider ◽  
Weakly Interacting Massive Particles ◽  
Grand Unification ◽  
Supersymmetric Extension ◽  
Gaugino Mass ◽  
The Standard Model ◽  
Minimal Supersymmetric Extension

Light neutralinos implemented in an effective Minimal Supersymmetric extension of the Standard Model at the electroweak scale without requirement of a gaugino-mass unification at a grand unification scale may have a mass around 10 GeV, i.e. in the range of interest for present data of direct search for dark matter particles in the galactic halo. In this talk we discuss the challenges and prospects of searching for them at the Large Hadron Collider.

Sign in / Sign up

Export Citation Format

Share Document