scholarly journals Radiative neutralino production in low energy supersymmetric models. II. The case of beam polarization

2012 ◽  
Vol 85 (1) ◽  
Author(s):  
P. N. Pandita ◽  
Chandradew Sharma
Keyword(s):  
Low Energy ◽  
Beam Polarization ◽  
Supersymmetric Models

scholarly journals Cosmology of supersymmetric models with low-energy gauge mediation

1997 ◽  
Vol 56 (2) ◽  
pp. 1281-1299 ◽  
Author(s):  
André de Gouve⁁a ◽  
Takeo Moroi ◽  
Hitoshi Murayama
Keyword(s):  
Low Energy ◽  
Gauge Mediation ◽  
Supersymmetric Models

scholarly journals The Deuteron Beam Polarimetry at Nuclotron-NICA

2016 ◽  
Vol 40 ◽  
pp. 1660087 ◽  
Author(s):  
V. P. Ladygin ◽  
P. K. Kurilkin ◽  
A. Yu. Isupov ◽  
M. Janek ◽  
S. G. Reznikov
Keyword(s):  
Elastic Scattering ◽  
Energy Range ◽  
Deuteron Beam ◽  
Low Energy ◽  
Beam Polarization ◽  
Wide Energy Range ◽  
Internal Target ◽  
Wide Energy ◽  
The Asymmetry

The current deuteron beam polarimetry at Nuclotron is provided by the Internal Target polarimeter based on the use of the asymmetry in dp- elastic scattering at large angles in the c.m.s. at 270 MeV. The calibration of the existing deuteron beam polarimeter at Internal Target in the wide energy range will allow to obtain the accuracy of the vector and tensor beam polarization values of about 3-5%. Further upgrade of low energy and extracted beam polarimeters is discussed.

Low energy constraints on N = 2 supersymmetric models

1984 ◽  
Vol 142 (4) ◽  
pp. 286-290 ◽  
Author(s):  
R.M. Godbole ◽  
U. Sarkar ◽  
O. Shanker
Keyword(s):  
Low Energy ◽  
Supersymmetric Models ◽  
Energy Constraints

scholarly journals Constraints onBand Higgs physics in minimal low energy supersymmetric models

2006 ◽  
Vol 74 (1) ◽  
Author(s):  
M. Carena ◽  
A. Menon ◽  
R. Noriega-Papaqui ◽  
A. Szynkman ◽  
C. E. M. Wagner
Keyword(s):  
Higgs Physics ◽  
Low Energy ◽  
Supersymmetric Models

scholarly journals A 125 GeV Higgs and Its Diphoton Signal in Different SUSY Models: A Mini Review

2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
Zhaoxia Heng
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Minimal Supersymmetric Standard Model ◽  
Low Energy ◽  
Fine Tuning ◽  
Signal Rate ◽  
Supersymmetric Models ◽  
Susy Models ◽  
Higgs Signal

In this paper we briefly review our recent studies on a 125 GeV Higgs and its diphoton signal rate in different low-energy supersymmetric models, namely, the minimal supersymmetric standard model (MSSM), the next-to-minimal supersymmetric standard model (NMSSM), the nearly minimal supersymmetric standard model (nMSSM), and the constrained MSSM. Our conclusion is as follows (i) in the allowed parameter space the SM-like Higgs boson can easily be 125 GeV in the MSSM, NMSSM, and nMSSM, while it is hard to realize in the constrained MSSM; (ii) the diphoton Higgs signal rate in the nMSSM and constrained MSSM is suppressed relative to the prediction of the SM, while the signal rate can be enhanced in the MSSM and NMSSM; (iii) the NMSSM may allow for a lighter top squark than the MSSM, which can thus ameliorate the fine-tuning problem.

scholarly journals Constraining electroweakinos in the minimal Dirac gaugino model

2020 ◽  
Vol 9 (4) ◽  
Author(s):  
Mark Goodsell ◽  
Sabine Kraml ◽  
Humberto Reyes-González ◽  
Sophie L. Williamson
Keyword(s):  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Direct Detection ◽  
Small Mass ◽  
New Physics ◽  
Low Energy ◽  
Collider Phenomenology ◽  
Supersymmetric Models ◽  
Relic Abundance ◽  
Frequent Presence

Supersymmetric models with Dirac instead of Majorana gaugino masses have distinct phenomenological consequences. In this paper, we investigate the electroweakino sector of the Minimal Dirac Gaugino Supersymmetric Standard Model (MDGSSM) with regards to dark matter (DM) and collider constraints. We delineate the parameter space where the lightest neutralino of the MDGSSM is a viable DM candidate, that makes for at least part of the observed relic abundance while evading constraints from DM direct detection, LEP and low-energy data, and LHC Higgs measurements. The collider phenomenology of the thus emerging scenarios is characterised by the richer electroweakino spectrum as compared to the Minimal Supersymmetric Standard Model (MSSM) -6 neutralinos and 3 charginos instead of 4 and 2 in the MSSM, naturally small mass splittings, and the frequent presence of long-lived particles, both charginos and/or neutralinos. Reinterpreting ATLAS and CMS analyses with the help of SmodelS and MadAnalysis 5, we discuss the sensitivity of existing LHC searches for new physics to these scenarios and show which cases can be constrained and which escape detection. Finally, we propose a set of benchmark points which can be useful for further studies, designing dedicated experimental analyses and/or investigating the potential of future experiments.

scholarly journals Radiative neutralino production in low energy supersymmetric models

2008 ◽  
Vol 77 (11) ◽  
Author(s):  
Rahul Basu ◽  
P. N. Pandita ◽  
Chandradew Sharma
Keyword(s):  
Low Energy ◽  
Supersymmetric Models

Dissociated Σ=27 boundaries in silicon

1988 ◽  
Vol 46 ◽  
pp. 624-625
Author(s):  
A. Garg ◽  
W.A.T. Clark ◽  
J.P. Hirth
Keyword(s):  
Electron Diffraction ◽  
Local Minimum ◽  
Boundary Energy ◽  
Coincidence Site Lattice ◽  
Boundary Plane ◽  
Low Energy ◽  
Theoretical Understanding ◽  
Site Lattice ◽  
Kikuchi Pattern ◽  
Analysis Techniques

In the last twenty years, a significant amount of work has been done in the theoretical understanding of grain boundaries. The various proposed grain boundary models suggest the existence of coincidence site lattice (CSL) boundaries at specific misorientations where a periodic structure representing a local minimum of energy exists between the two crystals. In general, the boundary energy depends not only upon the density of CSL sites but also upon the boundary plane, so that different facets of the same boundary have different energy. Here we describe TEM observations of the dissociation of a Σ=27 boundary in silicon in order to reduce its surface energy and attain a low energy configuration.The boundary was identified as near CSL Σ=27 {255} having a misorientation of (38.7±0.2)°/[011] by standard Kikuchi pattern, electron diffraction and trace analysis techniques. Although the boundary appeared planar, in the TEM it was found to be dissociated in some regions into a Σ=3 {111} and a Σ=9 {122} boundary, as shown in Fig. 1.

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