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Monojet searches are a powerful way to place model-independent constraints on effective operators coupling dark matter to the standard model. For operators generated by the exchange of a scalar mediator, however, couplings to light quarks…

High Energy Physics - Phenomenology · Physics 2013-09-18 Tongyan Lin , Edward W. Kolb , Lian-Tao Wang

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

We use ATLAS and CMS searches in the mono-jet + missing energy and mono-photon + missing energy final state to set limits on the couplings of dark matter to quarks and gluons. Working in an effective field theory framework we compare…

High Energy Physics - Phenomenology · Physics 2014-06-10 Patrick J. Fox , Roni Harnik , Joachim Kopp , Yuhsin Tsai

Simplified dark matter models have been recently advocated as a powerful tool to exploit the complementarity between dark matter direct detection, indirect detection and LHC experimental probes. Focusing on pseudoscalar mediators between…

High Energy Physics - Phenomenology · Physics 2017-04-05 Dorival Goncalves , Pedro A. N. Machado , Jose Miguel No

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

A search has been made for events containing an energetic jet and an imbalance in transverse momentum using a data sample of pp collisions at a center-of-mass energy of 7 TeV. This signature is common to both dark matter and extra…

High Energy Physics - Experiment · Physics 2014-11-10 CMS Collaboration

We consider LHC searches for dark matter in the mono-Higgs channel using the tools of effective field theory. This channel takes unique advantage of the presence of $SU(2)_L$ breaking in those operators to avoid the need for any…

High Energy Physics - Phenomenology · Physics 2015-06-17 Alexey A. Petrov , William Shepherd

We consider monojet searches at the Large Hadron Collider (LHC) for spin-1 dark matter that interacts with quarks through a contact operator. If the dark matter particles are produced with longitudinal polarizations, then the production…

High Energy Physics - Phenomenology · Physics 2015-12-01 Jason Kumar , Danny Marfatia , David Yaylali

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 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

We introduce a set of minimal simplified models for dark matter interactions with the Standard Model, connecting the two sectors via either a scalar or pseudoscalar particle. These models have a wider regime of validity for dark matter…

High Energy Physics - Phenomenology · Physics 2015-06-23 Matthew R. Buckley , David Feld , Dorival Goncalves

We study the discrimination of quark-initiated jets from gluon-initiated jets in monojet searches for dark matter using the technique of averaged jet energy profiles. We demonstrate our results in the context of effective field theories of…

High Energy Physics - Phenomenology · Physics 2015-06-18 Prateek Agrawal , Vikram Rentala

We investigate a mono-Z process as a potential dark matter search strategy at the LHC. In this channel a single Z boson recoils against missing transverse momentum, attributed to dark matter particles, $\chi$, which escape the detector.…

High Energy Physics - Phenomenology · Physics 2012-12-20 Nicole F. Bell , James B. Dent , Ahmad J. Galea , Thomas D. Jacques , Lawrence M. Krauss , Thomas J. Weiler

We consider dark sector particles (DSPs) that obtain sizeable interactions with Standard Model fermions from a new mediator. While these particles can avoid observation in direct detection experiments, they are strongly constrained by LHC…

High Energy Physics - Phenomenology · Physics 2015-07-28 Mikael Chala , Felix Kahlhoefer , Matthew McCullough , Germano Nardini , Kai Schmidt-Hoberg

Searches for dark matter at colliders typically involve signatures with energetic initial-state radiation without visible recoil particles. Searches for mono-jet or mono-photon signatures have yielded powerful constraints on dark matter…

High Energy Physics - Experiment · Physics 2015-06-12 Linda M. Carpenter , Andrew Nelson , Chase Shimmin , Tim M. P. Tait , Daniel Whiteson

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

Stringent limits on the interactions between dark matter (DM) and the standard model can be set by studying how initial-state or final-state particles recoil against missing transverse energy (MET). In this work, we improve, extend and…

High Energy Physics - Phenomenology · Physics 2015-08-21 Ulrich Haisch , Emanuele Re

We show that the momentum dependence of dark matter interactions with nuclei can be probed in direct detection experiments without knowledge of the dark matter velocity distribution. This is one of the few properties of DM microphysics that…

High Energy Physics - Phenomenology · Physics 2014-10-14 John F. Cherry , Mads T. Frandsen , Ian M. Shoemaker

We study collider constraints on the near-continuum dark matter model, in which the dark sector consists of a tower of closely spaced states with weak-scale masses coupled to the Standard Model through a $Z$-portal. To capture this…

High Energy Physics - Phenomenology · Physics 2025-10-22 Steven Ferrante , Lillian Luo , Maxim Perelstein , Taewook Youn

This brief review covers recent results on searches for dark matter in collider experiments, as well as from direct and indirect detection observatories. It focuses on generic searches for dark matter signatures at the LHC, e.g. mono-X,…

High Energy Physics - Phenomenology · Physics 2022-07-06 Vasiliki A. Mitsou
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