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A search for supersymmetry targeting the direct production of winos and higgsinos is conducted in final states with either two leptons ($e$ or $\mu$) with the same electric charge, or three leptons. The analysis uses 139 fb$^{-1}$ of $pp$…

High Energy Physics - Experiment · Physics 2023-12-14 ATLAS Collaboration

Direct detection dark matter experiments, lead by the CDMS collaboration, have placed increasingly stronger constraints on the cross sections for elastic scattering of WIMPs on nucleons. These results impact the prospects for the indirect…

High Energy Physics - Phenomenology · Physics 2016-09-06 Francis Halzen , Dan Hooper

The next generation of dark matter direct detection experiments will be sensitive to both coherent neutrino-nucleus and neutrino-electron scattering. This will enable them to explore aspects of solar physics, perform the lowest energy…

High Energy Physics - Phenomenology · Physics 2016-07-13 David G. Cerdeno , Malcolm Fairbairn , Thomas Jubb , Pedro A. N. Machado , Aaron C. Vincent , Celine Boehm

The projected reach of direct electroweakino searches at the HL-LHC ($\sqrt{s}=14~{\rm TeV}, ~3000~{\rm fb^{-1}}$ LHC) in the framework of simplified models with R-parity violating (RPV) operators: $\lambda_{112}^{\prime…

High Energy Physics - Phenomenology · Physics 2021-01-08 Rahool Kumar Barman , Biplob Bhattacherjee , Indrani Chakraborty , Arghya Choudhury , Najimuddin Khan

We study the sensitivity of multi ton-scale time projection chambers using a liquid xenon target, e.g., the proposed DARWIN instrument, to spin-independent and spin-dependent WIMP-nucleon scattering interactions. Taking into account…

Instrumentation and Detectors · Physics 2015-10-14 Marc Schumann , Laura Baudis , Lukas Bütikofer , Alexander Kish , Marco Selvi

We study the reach of direct detection experiments for large bound states (containing $10^4$ or more dark nucleons) of Asymmetric Dark Matter. We consider ordinary nuclear recoils, excitation of collective modes (phonons), and electronic…

High Energy Physics - Phenomenology · Physics 2019-09-04 Ahmet Coskuner , Dorota M. Grabowska , Simon Knapen , Kathryn M. Zurek

We study direct detection of dark matter in supersymmetric (SUSY) model where most of SUSY particles have very high-scale masses beyond the weak scale. In the scenario, Wino-like or Higgsino-like neutralino is a good candidate for the dark…

High Energy Physics - Phenomenology · Physics 2013-03-04 Junji Hisano , Koji Ishiwata , Natsumi Nagata

One of the most well-founded candidates for dark matter remains a split-SUSY model with a Higgsino-like or Wino-like lightest superpartner and the grander SUSY model providing answers for the hierarchy problem and GUT scale unification.The…

High Energy Physics - Phenomenology · Physics 2023-11-28 Carsten Rott , Pearl Sandick , Ben Sheff

In a strong-coupling picture of ElectroWeak Symmetry Breaking, a composite electroweak-neutral state in the TeV mass range, carrying a global (quasi-)conserved charge, makes a plausible Dark Matter (DM) candidate, with the ongoing direct DM…

High Energy Physics - Phenomenology · Physics 2014-11-20 Riccardo Barbieri , Slava Rychkov , Riccardo Torre

Dark matter (DM) is currently searched for with a variety of detection strategies. Accelerator searches are particularly promising, but even if Weakly Interacting Massive Particles (WIMPs) are found at the Large Hadron Collider (LHC), it…

High Energy Physics - Phenomenology · Physics 2010-10-13 Gianfranco Bertone , David G. Cerdeno , Mattia Fornasa , Roberto Ruiz de Austri , Roberto Trotta

Three dark matter direct detection experiments, DAMA, COGENT and CRESST, have reported a possible signal of WIMP interaction corresponding to very light particles, close to the edge of the XENON 100 and CDMS sensitivity. Imposing the latest…

High Energy Physics - Phenomenology · Physics 2012-11-13 F. Mahmoudi , A. Arbey , M. Battaglia

If the lightest dark matter neutralino has a sufficiently large Higgsino component, its spin-independent and spin-dependent cross sections on nucleons can be sizable enough to be detected soon in direct and indirect surveys. We outline in…

High Energy Physics - Phenomenology · Physics 2015-03-17 Ilia Gogoladze , Rizwan Khalid , Yukihiro Mimura , Qaisar Shafi

Given that the LHC experiment has produced strong constraints on the colored supersymmetric particles (sparticles), testing the electroweak supersymmetry (EWSUSY) will be the next crucial task at the LHC. On the other hand, the light…

High Energy Physics - Phenomenology · Physics 2020-01-08 Murat Abdughani , Ken-ichi Hikasa , Lei Wu , Jin Min Yang , Jun Zhao

Dark Matter direct detection experiments are able to exclude interesting parameter space regions of particle models which predict an important amount of thermal relics. We use recent data to constrain the branon model and to compute the…

High Energy Physics - Phenomenology · Physics 2011-10-21 Jose A. R. Cembranos , J. Lorenzo Diaz-Cruz , Lilian Prado

The report describes the research program on the development of ultra-low-energy germanium detectors, with emphasis on WIMP dark matter searches. A threshold of 100 eV is achieved with a 20 g detector array, providing a unique probe to the…

High Energy Physics - Experiment · Physics 2008-11-26 H. T. Wong

Future hadron colliders will have a remarkable capacity to discover massive new particles, but their capabilities for precision measurements of couplings that can reveal underlying mechanisms have received less study. In this work we study…

High Energy Physics - Phenomenology · Physics 2017-06-28 Prateek Agrawal , JiJi Fan , Matthew Reece , Wei Xue

``Top--down'' models explain the observation of ultra high energy cosmic rays (UHECR; $E \gsim 5 \cdot 10^{19}$ eV) through the decay of very massive, long--lived ``$X$ particles''. If superparticles with masses near a TeV exist, $X$ decays…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sascha Bornhauser , Manuel Drees

Dark Matter particles with inelastic interactions are ubiquitous in extensions of the Standard Model, yet remain challenging to fully probe with existing strategies. We propose a series of powerful searches at hadron and lepton colliders…

High Energy Physics - Phenomenology · Physics 2016-03-30 Eder Izaguirre , Gordan Krnjaic , Brian Shuve

In spite of rapid experimental progress, windows for light superparticles remain. One possibility is a ~100 GeV tau slepton whose t-channel exchange can give the correct thermal relic abundance for a relatively light neutralino. We…

High Energy Physics - Phenomenology · Physics 2013-10-18 Aaron Pierce , Nausheen R. Shah , Katherine Freese

Although the LHC experiments have searched for and excluded many proposed new particles up to masses close to 1 TeV, there are many scenarios that are difficult to address at a hadron collider. This talk will review a number of these…

High Energy Physics - Experiment · Physics 2021-11-22 Mikael Berggren