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We study the prospects of characterising Dark Matter at colliders using Machine Learning (ML) techniques. We focus on the monojet and missing transverse energy (MET) channel and propose a set of benchmark models for the study: a typical…

High Energy Physics - Phenomenology · Physics 2021-06-23 C. K. Khosa , V. Sanz , M. Soughton

Di-Higgs production at the LHC associated with missing transverse energy is explored in the context of simplified models that generically parameterize a large class of models with heavy scalars and dark matter candidates. Our aim is to…

High Energy Physics - Phenomenology · Physics 2024-11-25 Ernesto Arganda , Manuel Epele , Nicolas I. Mileo , Roberto A. Morales

We consider minimal dark matter scenarios featuring momentum-dependent couplings of the dark sector to the Standard Model. We derive constraints from existing LHC searches in the monojet channel, estimate the future LHC sensitivity for an…

The inert 2-Higgs Doublet Model (i2HDM) is a well-motivated minimal consistent Dark Matter (DM) model, but it is rather challenging to test at the Large Hadron Collider (LHC) in the parameter space allowed by relic density and DM direct…

High Energy Physics - Phenomenology · Physics 2019-02-07 A. Belyaev , T. R. Fernandez Perez Tomei , P. G. Mercadante , C. S. Moon , S. Moretti , S. F. Novaes , L. Panizzi , F. Rojas , M. Thomas

Results are presented for a search for dark matter at the LHC using the signatures of a monojet plus missing transverse energy and a monophoton plus missing transverse energy. The data were collected by the CMS detector at the LHC with pp…

High Energy Physics - Experiment · Physics 2019-08-13 Sarah Alam Malik

Background reduction in the SuperCDMS dark matter experiment depends on removing surface events within individual detectors by identifying the location of each incident particle interaction. Position reconstruction is achieved by combining…

High Energy Physics - Experiment · Physics 2024-04-18 P. B. Cushman , M. C. Fritts , A. D. Chambers , A. Roy , T. Li

The study of collision events with missing energy as searches for the dark matter (DM) component of the Universe are an essential part of the extensive program looking for new physics at the LHC. Given the unknown nature of DM, the…

We develop a method to forecast the outcome of the LHC Run 3 based on the hypothetical detection of $\mathcal{O}(100)$ signal events at XENONnT. Our method relies on a systematic classification of renormalisable single-mediator models for…

High Energy Physics - Phenomenology · Physics 2018-04-11 Sebastian Baum , Riccardo Catena , Jan Conrad , Katherine Freese , Martin B. Krauss

The move towards simplified models for Run II of the LHC will allow for stronger and more robust constraints on the dark sector. However there already exists a wealth of Run I data which should not be ignored in the run-up to Run II. Here…

High Energy Physics - Phenomenology · Physics 2015-06-30 Thomas Jacques , Karl Nordström

We study the prospect of dark matter (DM) searches in the monojet channel at future $pp$ colliders with center-of-mass energies of 33, 50, and 100~TeV. We consider a class of simplified models in which a vector boson connecting DM particles…

High Energy Physics - Phenomenology · Physics 2015-06-03 Qian-Fei Xiang , Xiao-Jun Bi , Peng-Fei Yin , Zhao-Huan Yu

Simplified models of the dark matter (co)annihilation mechanism predict striking new collider signatures untested by current searches. These models, which were codified in the coannihilation codex, provide the basis for a dark matter (DM)…

High Energy Physics - Phenomenology · Physics 2016-10-12 Malte Buschmann , Sonia El Hedri , Anna Kaminska , Jia Liu , Maikel de Vries , Xiao-Ping Wang , Felix Yu , Jose Zurita

Missing energy signals such as monojets are a possible signature of Dark Matter (DM) at colliders. However, neutrino interactions beyond the Standard Model may also produce missing energy signals. In order to conclude that new "missing…

High Energy Physics - Phenomenology · Physics 2016-05-11 Diogo Buarque Franzosi , Mads T. Frandsen , Ian M. Shoemaker

It is well-known that dark matter (DM) direct detection experiments and the LHC are complementary, since they probe physical processes occurring at different energy scales. And yet, there are aspects of this complementarity which are still…

High Energy Physics - Phenomenology · Physics 2019-07-11 Sebastian Baum , Riccardo Catena , Martin B. Krauss

Nowadays there is an active discussion about the definition of Simplified Models of Dark Matter (SMDM) as a tool for interpreting LHC searches. Here we point out an additional simplified set-up which captures a very well motivated mechanism…

High Energy Physics - Phenomenology · Physics 2015-05-20 Bryan Zaldivar

We consider simplified dark matter models where a dark matter candidate couples to the standard model (SM) particles via an $s$-channel spin-2 mediator, and study constraints on the model parameter space from the current LHC data. Our focus…

High Energy Physics - Phenomenology · Physics 2017-06-28 Sabine Kraml , Ursula Laa , Kentarou Mawatari , Kimiko Yamashita

Higgsino in supersymmetric standard models can play the role of dark matter particle. In conjunction with the naturalness criterion, the higgsino mass parameter is expected to be around the electroweak scale. In this work, we explore the…

High Energy Physics - Phenomenology · Physics 2022-09-08 Huifang Lv , Daohan Wang , Lei Wu

Dark matter (DM) has been searched for at colliders in a largely model independent fashion by looking for an excess number of events involving a single jet, or photon, and missing energy. We investigate the possibility of looking for…

High Energy Physics - Phenomenology · Physics 2013-05-30 Patrick J. Fox , Roni Harnik , Reinard Primulando , Chiu-Tien Yu

Astrophysical and cosmological observations strongly suggest the existence of Dark Matter\,(DM). Experiments at the Large Hadron Collider\,(LHC) have the potential to probe the particle nature of the DM. In the present work, we investigate…

High Energy Physics - Phenomenology · Physics 2025-04-18 Sweta Baradia , Sanchari Bhattacharyya , Anindya Datta , Suchandra Dutta , Suvankar Roy Chowdhury , Subir Sarkar

The detection of Dark Matter (DM) remains a significant challenge in particle physics. This study exploits advanced machine learning models to improve detection capabilities of liquid xenon time projection chamber experiments, utilizing…

Instrumentation and Methods for Astrophysics · Physics 2025-01-17 Daniel E. Lopez-Fogliani , Andres D. Perez , Roberto Ruiz de Austri
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