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相关论文: Collider constraints on electroweakinos in the pre…

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We investigate the prospects of discovering split Supersymmetry at a future 100 TeV proton-proton collider through the direct production of electroweakino next-to-lightest-supersymmetric-particles (NLSPs). We focus on signatures with…

高能物理 - 唯象学 · 物理学 2015-06-23 Stefania Gori , Sunghoon Jung , Lian-Tao Wang , James D. Wells

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…

高能物理 - 唯象学 · 物理学 2015-03-19 Lorenzo Calibbi , Toshihiko Ota , Yasutaka Takanishi

In split supersymmetry, gauginos and Higgsinos are the only supersymmetric particles which are possibly accessible at foreseeable colliders. While the direct experimental searches, such as LEP and Tevatron experiments, gave robust lower…

高能物理 - 唯象学 · 物理学 2009-01-07 Fei Wang , Wenyu Wang , Jin Min Yang

Using the chargino-neutralino and slepton search results from the LHC in conjunction with the WMAP/PLANCK and $(g-2)_{\mu}$ data, we constrain several generic pMSSM models with decoupled strongly interacting sparticles, heavier Higgs bosons…

高能物理 - 唯象学 · 物理学 2014-07-07 Manimala Chakraborti , Utpal Chattopadhyay , Arghya Choudhury , Amitava Datta , Sujoy Poddar

We explore the Electroweak Supersymmetry (EWSUSY) scenario within the Minimal Supersymmetric Standard Model (MSSM) under the Generalized Minimal Supergravity (GmSUGRA) framework, given that the anomalous magnetic moment of the muon may now…

高能物理 - 唯象学 · 物理学 2025-07-29 Imtiaz Khan , Ali Muhammad , Tianjun Li , Shabbar Raza

To explain all the available experimental results, we have proposed the Electroweak Supersymmetry (EWSUSY) previously, where the squarks and/or gluino are heavy around a few TeVs while the sleptons, sneutrinos, Bino, Winos, and/or Higgsinos…

高能物理 - 唯象学 · 物理学 2013-08-09 Taoli Cheng , Tianjun Li

We compute corrections to precision electroweak observables in supersymmetry in the limit that scalar superpartners are very massive and decoupled. This leaves charginos and neutralinos and a Standard Model-like Higgs boson as the only…

高能物理 - 唯象学 · 物理学 2009-11-10 Stephen P. Martin , Kazuhiro Tobe , James D. Wells

Uncertainties of the MSSM predictions are due to an unknown SUSY breaking mechanism. To reduce these uncertainties, one usually imposes constraints on the MSSM parameter space. Recently, two new constraints became available, both from…

高能物理 - 唯象学 · 物理学 2009-11-11 D. Yu. Bogachev , A. V. Gladyshev , D. I. Kazakov , A. S. Nechaev

The electroweak (EW) sector of the Minimal Supersymmetric Standard Model (MSSM) can account for a variety of experimental data. In particular, it can explain the persistent 3-4 sigma discrepancy between the experimental result for the…

高能物理 - 唯象学 · 物理学 2021-12-22 Manimala Chakraborti , Sven Heinemeyer , Ipsita Saha

One of the main goals of the ongoing LHC program is the search for BSM physics, with EW SUSY partners still allowed with masses as low as a few hundred GeV. Over the last years, searches for the ``golden channel'', $pp \to \tilde\chi^0_2…

高能物理 - 唯象学 · 物理学 2025-12-22 E. Bagnaschi , M. Chakraborti , S. Heinemeyer , I. Saha

In the CP-violating Minimal Supersymmetric Standard Model (MSSM), for certain values of the CP-violating phases associated to the universal trilinear couplings $(A_t, A_b)$ and the gluino mass $(M_{\tilde g})$, e.g., $\Phi_{\rm{CP}} =…

高能物理 - 唯象学 · 物理学 2009-01-07 Dilip Kumar Ghosh , Stefano Moretti

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

Searches for pair production of squarks, sleptons, charginos, and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies from 188.6 to 201.6 GeV. No evidence for any such signals is…

高能物理 - 实验 · 物理学 2012-08-27 ALEPH Collaboration

We propose and examine a new set of benchmark supersymmetric scenarios, some of which have non-universal Higgs scalar masses (NUHM) and others have gravitino dark matter (GDM). The scalar masses in these models are either considerably…

高能物理 - 唯象学 · 物理学 2008-11-26 A. De Roeck , J. Ellis , F. Gianotti , F. Moortgat , K. A. Olive , L. Pape

The hallmark way to search for electroweakinos in natural supersymmetry at the LHC involves the trilepton plus missing energy final state. This approach assumes an electroweakino mass hierarchy that allows for cascade decays leading to a…

高能物理 - 唯象学 · 物理学 2020-02-19 Antonio Delgado , Adam Martin

We make a systematic and comparative study for the LHC and ILC for the electroweakino searches in the Minimal Supersymmetric Standard Model. We adopt a general bottom-up approach and scan over the parameter regions for all the three cases…

高能物理 - 唯象学 · 物理学 2013-10-01 Mikael Berggren , Tao Han , Jenny List , Sanjay Padhi , Shufang Su , Tomohiko Tanabe

We explore the MSSM with 9 free parameters (p9MSSM) that have been selected as a minimum set that allows an investigation of neutralino dark matter and collider signatures while maintaining consistency with several constraints. These…

高能物理 - 唯象学 · 物理学 2013-10-04 Andrew Fowlie , Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo , Yue-Lin Sming Tsai

If supersymmetry is dynamically broken at a low scale ($M_{susy}$), within a few orders of magnitude of the weak scale, then the lightest supersymmetric partner is the gravitino and the next to lightest supersymmetric partner is a…

高能物理 - 唯象学 · 物理学 2009-10-28 Daniel R. Stump , Michael Wiest , C. -P. Yuan

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…

Light neutralino dark matter can be achieved in the Minimal Supersymmetric Standard Model if staus are rather light, with mass around 100 GeV. We perform a detailed analysis of the relevant supersymmetric parameter space, including also the…