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相关论文: More Energy, More Searches, but the pMSSM Lives On

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We have examined the capability of the LHC, running at both 7 and 8 TeV, to explore the 19(20)-dimensional parameter space of the pMSSM with neutralino(gravitino) LSPs and soft masses up to 4 TeV employing the ATLAS SUSY analysis suite.…

高能物理 - 唯象学 · 物理学 2012-12-03 M. W. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

We study SUSY signatures at the 7, 8 and 14 TeV LHC employing the 19-parameter, R-Parity conserving p(henomenological)MSSM, in the scenario with a neutralino LSP. Our results were obtained via a fast Monte Carlo simulation of the ATLAS SUSY…

高能物理 - 唯象学 · 物理学 2015-03-11 M. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

The pMSSM provides a broad perspective on SUSY phenomenology. In this paper we generate two new, very large, sets of pMSSM models with sparticle masses extending up to 4 TeV, where the lightest supersymmetric particle (LSP) is either a…

高能物理 - 唯象学 · 物理学 2015-06-05 Matthew W. Cahill-Rowley , JoAnne L. Hewett , Stefan Hoeche , Ahmed Ismail , Thomas G. Rizzo

The 19/20-parameter p(henomenological)MSSM with either a neutralino or gravitino LSP offers a flexible framework for the study of a wide variety of R-parity conserving MSSM SUSY phenomena at the 7, 8 and 14 TeV LHC. Here we present the…

高能物理 - 唯象学 · 物理学 2013-10-01 M. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

We study the implications of LHC searches on SUSY particle spectra using flat scans of the 19-parameter pMSSM phase space. We apply constraints from flavour physics, g_mu-2, dark matter and earlier LEP and Tevatron searches. The sensitivity…

高能物理 - 唯象学 · 物理学 2012-01-10 A. Arbey , M. Battaglia , F. Mahmoudi

We explore the impact of current (7+8 TeV) and future (14 TeV) LHC searches on the range of viable sparticle spectra within the 19/20 - dimensional phenomenological MSSM (pMSSM). Considering both neutralino and gravitino LSPs, we compare…

高能物理 - 唯象学 · 物理学 2014-11-13 Matthew Cahill-Rowley

We present the first analysis of the p19MSSM with neutralino dark matter, in light of 13 TeV LHC data with an integrated luminosity of ~14/fb. We recast twelve experimental analyses performed by the ATLAS collaboration and derive exclusion…

高能物理 - 唯象学 · 物理学 2017-01-10 Kamila Kowalska

We investigate the impact of direct LHC SUSY searches on the parameter space of three natural scenarios in the MSSM. In the first case the spectrum consists of light stops, sbottoms, and Higgsino-like neutralinos, while the other particles…

高能物理 - 唯象学 · 物理学 2013-10-09 Kamila Kowalska , Enrico Maria Sessolo

We investigate the model independent nature of the Supersymmetry search strategies at the 7 TeV LHC. To this end, we study the missing-transverse-energy-based searches developed by the ATLAS Collaboration that were essentially designed for…

高能物理 - 唯象学 · 物理学 2011-03-10 John A. Conley , James S. Gainer , JoAnne L. Hewett , My Phuong Le , Thomas G. Rizzo

The current searches of supersymmetry (SUSY) are based on the neutralino lightest sparticle (LSP). In this article we instead focus on SUSY with sneutrino LSP. It is well motivated in many contexts, especially in which sneutrino services as…

高能物理 - 唯象学 · 物理学 2015-06-18 Jun Guo , Zhaofeng Kang , Jinmian Li , Tianjun Li , Yandong Liu

We derive the latest constraints on various simplified models of natural SUSY with light higgsinos, stops and gluinos, using a detailed and comprehensive reinterpretation of the most recent 13 TeV ATLAS and CMS searches with $\sim 15$…

高能物理 - 唯象学 · 物理学 2017-09-05 Matthew R. Buckley , David Feld , Sebastian Macaluso , Angelo Monteux , David Shih

We investigate to which extent the SUSY search results published by ATLAS and CMS in the context of simplified models actually cover the more realistic scenarios of a full model. Concretely, we work within the phenomenological MSSM (pMSSM)…

高能物理 - 唯象学 · 物理学 2018-03-21 Federico Ambrogi , Sabine Kraml , Suchita Kulkarni , Ursula Laa , Andre Lessa , Wolfgang Waltenberger

We investigate the viability of light neutralino scenarios as promoted by dark matter direct detection experiments. Using high statistics scans in the pMSSM we have identified several scenarios which give rise to very light neutralinos with…

高能物理 - 唯象学 · 物理学 2012-10-08 A. Arbey , M. Battaglia , F. Mahmoudi

We revisit the case of a light neutralino LSP in the framework of the MSSM. We consider a model with eleven free parameters. We show that all scenarios where the annihilation of light neutralinos rely mainly on the exchange of a light…

高能物理 - 唯象学 · 物理学 2013-05-29 Daniel Albornoz Vasquez , Genevieve Belanger , Celine Boehm

The requirement that SUSY should solve the hierarchy problem without undue fine-tuning imposes severe constraints on the new supersymmetric states. With the MSSM spectrum and soft SUSY breaking originating from universal scalar and gaugino…

高能物理 - 唯象学 · 物理学 2015-05-27 S. Cassel , D. M. Ghilencea , S. Kraml , A. Lessa , G. G. Ross

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

LHC sparticle search limits are usually performed within the context of simplified models and subsequently interpreted within the 19 parameter phenomenological MSSM (pMSSM) as to how many models avoid search limits for a particular…

高能物理 - 唯象学 · 物理学 2026-02-11 Howard Baer , Vernon Barger , Kairui Zhang

The status of SUSY searches at LEP2 up to centre-of-mass energy of 202 GeV is presented. Search strategies for sleptons, squarks, charginos and neutralinos are discussed in the framework of Minimal Supersymmetric Standard Model with…

高能物理 - 实验 · 物理学 2007-05-23 Ia Iashvili

We present some highlights on the complementaries of the Higgs and SUSY searches at the LHC, using the 8 and 13 TeV results. In particular, we discuss the constraints that can be obtained on the MSSM parameters by the determination of the…

高能物理 - 唯象学 · 物理学 2018-12-03 A. Arbey , M. Battaglia , A. Djouadi , F. Mahmoudi , M. Muehlleitner , G. Robbins , M. Spira

In the final run in the year 2000 the four experiments at the electron positron collider LEP have accumulated data corresponding to an integrated luminosity of more than 210 pb-1 per experiment at centre-of-mass energies up to 208 GeV.…

高能物理 - 实验 · 物理学 2007-05-23 K. Jakobs
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