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Related papers: Updated Post-WMAP Benchmarks for Supersymmetry

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The neutralino sector of the semi-constrained next-to-minimal supersymmetric standard model is explored under recent experimental constraints, with special attention to dark matter (DM) limits. The effects of the upper and lower bounds of…

High Energy Physics - Phenomenology · Physics 2021-02-02 Elham Aldufeery , Maien Binjonaid

In these Lectures I review possible constraints on particle physics models, obtained by means of combining the results of collider measurements with astrophysical data. I emphasize the theoretical-model dependence of these results. I…

High Energy Physics - Phenomenology · Physics 2017-08-23 Nikolaos E. Mavromatos

We study the seven-dimensional Minimal Supersymmetric Standard Model (MSSM7) with the new GAMBIT software framework, with all parameters defined at the weak scale. Our analysis significantly extends previous weak-scale, phenomenological…

We investigate the properties of a dark matter sector where supersymmetry is a good symmetry. In this context we find that the stability of the dark matter candidate is possible even when R-parity is broken in the visible sector. In order…

High Energy Physics - Phenomenology · Physics 2012-10-31 Jonathan M. Arnold , Pavel Fileviez Perez , Bartosz Fornal

In the post-LEP2 era, and in light of recent measurements of the cosmic abundance of cold dark matter (CDM) in the universe from WMAP, many supersymmetric models tend to predict 1. an overabundance of CDM and 2. pessimistically low rates…

High Energy Physics - Phenomenology · Physics 2010-10-27 Howard Baer , Azar Mustafayev , Eun-Kyung Park , Xerxes Tata

Driven by the growing agreement between the experimentally measured muon anomalous magnetic moment and its SM prediction, we reexamine phenomenological consequences of the MSSM, which is embedded in the supersymmetric $SU(4)_C \times…

High Energy Physics - Phenomenology · Physics 2026-03-26 Ali Muhammad , Imtiaz Khan , Tianjun Li , Shabbar Raza , Mussawir Khan , and Pirzada

In mSUGRA models the lightest supersymmetric particle (assumed to be the lightest neutralino) provides an excellent cold dark matter (CDM) candidate. The supersymmetric parameter space is significantly reduced, if the limits on the CDM…

High Energy Physics - Phenomenology · Physics 2007-05-23 Luisa Sabrina Stark , Petra Hafliger , Adrian Biland , Felicitas Pauss

We place new constraints on sources of ionizing and resonance radiation at the epoch of the recombination process using the recent CMB temperature and polarization spectra coming from WMAP. We find that non-standard recombination scenarios…

Astrophysics · Physics 2009-11-10 Rachel Bean , Alessandro Melchiorri , Joe Silk

We present a non-supersymmetric scenario in which the R-parity symmetry $R_P = (-1)^{3(B-L)+2s}$ arises as a result of spontaneous gauge symmetry breaking, leading to a viable Dirac fermion WIMP dark matter candidate. Direct detection in…

High Energy Physics - Phenomenology · Physics 2017-10-11 Alexandre Alves , Giorgio Arcadi , P. V. Dong , Laura Duarte , Farinaldo S. Queiroz , José W. F. Valle

WIMP dark matter and gauge coupling unification are considered in an R-parity violating MSSM with vector-like matter. Dark matter is contained in an additional vector-like SU(2)$_L$ doublet which possesses a new U(1) gauge symmetry. The…

High Energy Physics - Phenomenology · Physics 2013-05-14 Chun Liu , Jia-Shu Lu

Based on the cosmological observations, the baryon and dark matter energy densities are similar. There may exist an asymmetry between the dark matter particles and their corresponding anti--particles. We review the relic density of…

High Energy Physics - Phenomenology · Physics 2023-10-06 Qiu Sujuan , Hoernisa Iminniyaz

We present an efficient method of reconstructing the parameters of the Constrained MSSM from assumed future LHC data, applied both on their own right and in combination with the cosmological determination of the relic dark matter abundance.…

High Energy Physics - Phenomenology · Physics 2014-11-20 L. Roszkowski , R. Ruiz de Austri , R. Trotta

We introduce a minimal supersymmetric extension of a higgsless model for electroweak symmetry breaking in a warped extra dimension. In contrast to the non supersymmetric version, our model naturally contains a candidate for cold dark…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alexander Knochel , Thorsten Ohl

We revisit MSSM scenarios with light neutralino as a dark matter candidate in view of the latest LHC and dark matter direct and indirect detection experiments. We show that scenarios with a very light neutralino (~ 10 GeV) and a scalar…

High Energy Physics - Phenomenology · Physics 2013-11-08 Alexandre Arbey , Marco Battaglia , Farvah Mahmoudi

We investigate the constraints to the light neutralino dark matter scenario in the minimal supersymmetric standard model from available experimental observations such as decays of B and K meson, relic dark matter abundance, and the search…

High Energy Physics - Phenomenology · Physics 2015-03-19 Lorenzo Calibbi , Toshihiko Ota , Yasutaka Takanishi

We derive constraints on mixed dark-matter scenarios consisting of primordial black holes (PBHs) and weakly interacting massive particles (WIMPs). In these scenarios, we expect a density spike of the WIMPs that are gravitationally bound to…

High Energy Physics - Phenomenology · Physics 2019-09-12 Sofiane M. Boucenna , Florian Kuhnel , Tommy Ohlsson , Luca Visinelli

Scalar-tensor theories of gravity provide a consistent framework to accommodate an ultra-light quintessence scalar field. While the equivalence principle is respected by construction, deviations from General Relativity and standard…

Astrophysics · Physics 2008-11-26 R. Catena , N. Fornengo , A. Masiero , M. Pietroni , F. Rosati

In minimal Supergravity (mSUGRA) models the lightest supersymmetric particle (assumed to be the lightest neutralino) provides an excellent cold dark matter (CDM) candidate. The supersymmetric parameter space is significantly reduced, if the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Luisa Sabrina Stark , Petra Hafliger , Adrian Biland , Felicitas Pauss

Precision measurements, now and at a future linear electron-positron collider (ILC), can provide indirect information about the possible scale of supersymmetry. Performing a chi^2 analysis, we illustrate the present-day and possible future…

High Energy Physics - Phenomenology · Physics 2009-09-11 J. Ellis , S. Heinemeyer , K. Olive , G. Weiglein

We investigate early discovery signals for supersymmetry at the Large Hadron Collider without using information about missing transverse energy. Instead we use cuts on the number of jets and isolated leptons (electrons and/or muons). We…

High Energy Physics - Phenomenology · Physics 2010-03-19 Joakim Edsjo , Erik Lundstrom , Sara Rydbeck , Jorgen Sjolin