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Related papers: Testing Cosmology at the ILC

200 papers

Run 1 of the LHC has provided three new motivations for supersymmetry: the need to stabilize the electroweak vacuum, the mass of the Higgs boson, and the fact that its couplings are Standard Model-like (so far). The prospects for…

High Energy Physics - Phenomenology · Physics 2015-10-22 John Ellis

In the event that R-Parity conserving supersymmetry (SUSY) is discovered at the LHC, a key issue which will need to be addressed will be the consistency of that signal with astrophysical and non-accelerator constraints on SUSY Dark Matter.…

High Energy Physics - Phenomenology · Physics 2010-02-03 G. Polesello , D. R. Tovey

The Minimal Supersymmetric Standard Model opens the possibility of electroweak baryogenesis provided that the light scalar top quark (stop) is lighter than the top quark. In addition, the lightest neutralino is an ideal candidate to explain…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Carena , A. Finch , A. Freitas , C. Milstene , H. Nowak , A. Sopczak

The measurement of sparticle masses in the Minimal Supersymmetric Standard Model at the LHC is analysed, in the scenario where the lightest neutralino decays into three quarks. Such decays, occurring through the baryon-number violating…

High Energy Physics - Phenomenology · Physics 2011-07-19 B. C. Allanach , A. J. Barr , L. Drage , C. G. Lester , D. Morgan , M. A. Parker , P. Richardson B. R. Webber

We investigate a possibility of precision measurements for parameters of the Littlest Higgs model with T-parity at the International Linear Collider (ILC). The model predicts new gauge bosons which masses strongly depend on the vacuum…

High Energy Physics - Phenomenology · Physics 2009-07-02 Eri Asakawa , Masaki Asano , Keisuke Fujii , Tomonori Kusano , Shigeki Matsumoto , Rei Sasaki , Yosuke Takubo , Hitoshi Yamamoto

A solution to the Boltzmann equation governing the thermal relic abundance of cold dark matter is constructed by matched asymptotic approximations. The approximation of the relic density is an asymptotic series valid when the abundance does…

High Energy Physics - Phenomenology · Physics 2021-07-16 Logan A. Morrison , Hiren H. Patel , Jaryd F. Ulbricht

Light thermal relics of the hot big bang, often quantified by the parameter $N_\mathrm{eff}$, are one of the primary targets of cosmological measurements. At present, the energy density in such relics is constrained to be less than ten…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-06 Daniel Baumann , Daniel Green , Benjamin Wallisch

The light higgsino-singlino scenario of the NMSSM allows to combine a naturally small $\mu$ parameter with a good dark matter relic density. Given the new constraints on spin-dependent and spin-independent direct detection cross sections in…

High Energy Physics - Phenomenology · Physics 2017-03-08 Ulrich Ellwanger

Besides Standard Model measurements and other Beyond Standard Model studies, the ATLAS and CMS experiments at the LHC will search for Supersymmetry, one of the most attractive explanation for dark matter. The SUSY discovery potential with…

High Energy Physics - Phenomenology · Physics 2012-01-06 Vasiliki A. Mitsou

A summary of the constraints from the ATLAS experiment on $R$-parity conserving supersymmetry is presented. Results from 22 separate ATLAS searches are considered, each based on analysis of up to 20.3 fb$^{-1}$ of proton-proton collision…

High Energy Physics - Experiment · Physics 2015-10-30 ATLAS Collaboration

One major challenge for the legacy measurements at the LHC is that the likelihood function is not tractable when the collected data is high-dimensional and the detector response has to be modeled. We review how different analysis strategies…

High Energy Physics - Phenomenology · Physics 2020-08-20 Johann Brehmer , Kyle Cranmer , Irina Espejo , Felix Kling , Gilles Louppe , Juan Pavez

Supersymmetry may be discovered at high energy colliders, through low energy precision measurements, and by dark matter searches. We present a comprehensive analysis of all available probes in minimal supergravity. This work extends…

High Energy Physics - Phenomenology · Physics 2009-10-09 Jonathan L. Feng , Konstantin T. Matchev , Frank Wilczek

The Lightest Supersymmetric Particle (LSP) makes a good Dark Matter (DM) candidate, since its relic density quite naturally comes out close to the cosmologically required value. This is true even in minimal Supergravity models with…

High Energy Physics - Phenomenology · Physics 2009-09-25 M. Drees

The prospects for the discovery and exploration of low-energy Supersymmetry at future colliders, the Large Hadron Collider (LHC) and the future international linear electron positron collider (ILC) are summarized. The focus is on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Klaus Desch

This note presents a list of physics processes for benchmarking the performance of proposed ILC detectors. This list gives broad coverage of the required physics capabilities of the ILC experiments and suggests target accuracies to be…

High Energy Physics - Experiment · Physics 2007-05-23 M. Battaglia , T. Barklow , M. Peskin , Y. Okada , S. Yamashita , P. Zerwas

A larger Planck scale during an early epoch leads to a smaller Hubble rate, which is the measure for efficiency of primordial processes. The resulting slower cosmic tempo can accommodate alternative cosmological histories. We consider this…

High Energy Physics - Phenomenology · Physics 2023-12-15 Hooman Davoudiasl , Matthew Sullivan

The impact of the LHC, SLHC and the ILC on the precision of the determination of supersymmetric parameters is investigated. In particular, in the point SPS1a the measurements performed at the ILC will improve by an order of magnitude the…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Lafaye , T. Plehn , D. Zerwas

Light dark matter is a compelling experimental target in light of stringent constraints on heavier WIMPs. However, for a sub-MeV WIMP, the universe is sufficiently well understood at temperatures below 10 MeV that there is no room for it to…

High Energy Physics - Phenomenology · Physics 2018-03-02 Daniel Green , Surjeet Rajendran

Dark matter neutralinos in the constrained minimal supersymmetric model (CMSSM) may account for the recent cosmic ray electron and positron observations reported by the PAMELA and ATIC experiments either through self annihilation or via…

High Energy Physics - Phenomenology · Physics 2010-04-14 Ilia Gogoladze , Rizwan Khalid , Qaisar Shafi , Hasan Yuksel

The relic density of a cold dark matter (CDM) candidate is calculated in the context of three non-standard cosmological scenaria and its value is compared with the one obtained in the standard regime. In particular, we consider the…

High Energy Physics - Phenomenology · Physics 2016-11-09 C. Pallis