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The Higgs boson mass and the abundance of dark matter constrain the CMSSM/mSUGRA supersymmetry breaking inputs. A complete map of the CMSSM that is consistent with these two measured quantities is provided. Various "continents," consisting…

高能物理 - 唯象学 · 物理学 2015-06-15 Timothy Cohen , Jay G. Wacker

It has been known that, in the focus point scenario of supersymmetry, the thermal relic of the lightest superparticle (LSP) is known to be a good candidate of the cold dark matter. Assuming that the LSP in the focus-point scenario be the…

高能物理 - 唯象学 · 物理学 2010-04-05 Takeo Moroi , Yasuhiro Shimizu , Akira Yotsuyanagi

We quantify the amount of fine tuning of input parameters of the Minimal Supersymmetric Extension of the Standard Model (MSSM) that is needed to respect the lower limits on sparticle and Higgs masses imposed by precision electroweak…

高能物理 - 唯象学 · 物理学 2009-09-11 P. H. Chankowski , J. Ellis , S. Pokorski

We investigate how well the relic density of dark matter can be predicted in mSUGRA. We determine the parameters to which the relic density is most sensitive and quantify the collider accuracy needed to match the accuracy of WMAP and…

高能物理 - 唯象学 · 物理学 2007-05-23 B. C. Allanach , G. Bélanger , F. Boudjema , A. Pukhov

To obtain the most accurate predictions for the Higgs masses in the minimal supersymmetric model (MSSM), one should compute the full set of one-loop radiative corrections, resum the large logarithms to all orders, and add the dominant…

高能物理 - 唯象学 · 物理学 2007-05-23 Howard E. Haber , Ralf Hempfling , Andre H. Hoang

We use MasterCode to perform a frequentist analysis of the constraints on a phenomenological MSSM model with 11 parameters, the pMSSM11, including constraints from ~ 36/fb of LHC data at 13 TeV and PICO, XENON1T and PandaX-II searches for…

We study the implications of LHC results for the abundance of long-lived staus after freeze-out from thermal equilibrium in a super-WIMP dark matter scenario. We classify regions in the MSSM parameter space according to the stau yield,…

高能物理 - 唯象学 · 物理学 2014-04-16 Jan Heisig , Jörn Kersten , Boris Panes , Tania Robens

We present the program SuSpect3 that calculates the masses and couplings of the Higgs and supersymmetric particles predicted by the Minimal Supersymmetric Standard Model (MSSM). The model is implemented in both its non-constrained version,…

高能物理 - 唯象学 · 物理学 2023-08-29 Jean-Loic Kneur , Gilbert Moultaka , Michael Ughetto , Dirk Zerwas , Abdelhak Djouadi

We explore the capability of the IceCube/Deepcore array to discover signal neutrinos resulting from the annihilations of Supersymmetric WIMPS that may be captured in the solar core. In this analysis, we use a previously generated set of…

高能物理 - 唯象学 · 物理学 2013-05-30 R. C. Cotta , K. T. K. Howe , J. L. Hewett , T. G. Rizzo

We continue a previous study of the MSSM Higgs Lagrangian extended by all effective operators of dimension d=6 that can be present beyond the MSSM, consistent with its symmetries. By supersymmetry, such operators also extend the neutralino…

高能物理 - 唯象学 · 物理学 2011-11-16 I. Antoniadis , E. Dudas , D. M. Ghilencea , P. Tziveloglou

Phenomenologically viable and interesting regions of parameter space in the minimal super-gravity (mSUGRA) model with small $m_0$ and small $m_{1/2}$ consistent with the WMAP data on dark matter relic density and the bound on the mass of…

高能物理 - 唯象学 · 物理学 2008-11-26 Utpal Chattopadhyay , Debottam Das , Amitava Datta , Sujoy Poddar

We exploit the measured branching ratio for $b \rightarrow s\gamma$ to derive lower limits on the sparticle and Higgs masses in the minimal string unification models. For the LSP('bino'), chargino and the lightest Higgs, these turn out to…

高能物理 - 唯象学 · 物理学 2014-11-17 Shaaban Khalil , Antonio Masiero , Qaisar Shafi

The observed excesses in the search for neutralinos and charginos by ATLAS and CMS can be fitted simultaneously in the minimal supersymmetric standard model (MSSM) assuming a light higgsino mass, of magnitude less than about 250 GeV, and a…

高能物理 - 唯象学 · 物理学 2024-05-01 Ulrich Ellwanger , Cyril Hugonie , Stephen F. King , Stefano Moretti

The status of the constrained minimal supersymmetric standard model (CMSSM) will be discussed in light of our current understanding of the relic density after WMAP. A global likelihood analysis of the model is performed including data from…

高能物理 - 唯象学 · 物理学 2007-05-23 Keith A. Olive

We compare results of four public supersymmetric (SUSY) spectrum codes, Isajet, Softsusy, Spheno and Suspect to estimate the present-day uncertainty in the calculation of the relic density of dark matter in mSUGRA models. We find that even…

高能物理 - 唯象学 · 物理学 2009-11-11 G. Belanger , S. Kraml , A. Pukhov

The dark matter relic density being a powerful observable to constrain models of new physics, the recent experimental progress calls for more precise theoretical predictions. On the particle physics side, improvements are to be made in the…

高能物理 - 唯象学 · 物理学 2016-09-19 Julia Harz , Björn Herrmann , Michael Klasen , Karol Kovařík , Patrick Steppeler

For the interpretation of the signal discovered in the Higgs searches at the LHC it will be crucial in particular to discriminate between the minimal Higgs sector realised in the Standard Model (SM) and its most commonly studied extension,…

高能物理 - 唯象学 · 物理学 2014-04-23 T. Hahn , S. Heinemeyer , W. Hollik , H. Rzehak , G. Weiglein

More than one year after the end of LEPII, many analysis activities are still going on to translate the negative search results of the four LEP experiments into solid limits on cross-sections and masses of SUSY particles. Many analyses…

高能物理 - 实验 · 物理学 2007-05-23 Imad Laktineh

A multitude of searches have already been performed by the ATLAS and CMS collaborations at the LHC to probe the heavy Higgses of the Minimal Supersymmetric Standard Model (MSSM) through their decay to the Standard Model particles. In this…

高能物理 - 唯象学 · 物理学 2016-10-26 Rahool K. Barman , Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury

In the year 2000 the four LEP experiments collected data at centre-of-mass energies between 200 and 209 GeV, integrating approximately 870 pb-1 of luminosity, with about 510 pb-1 above 206 GeV. The LEP working group for Higgs boson searches…