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Many popular models of new physics beyond the Standard Model use a parity to stabilize weakly interacting, dark matter candidates. We examine the potential for the CERN Large Hadron Collider to distinguish models with parity stabilized dark…

High Energy Physics - Phenomenology · Physics 2009-07-29 Devin G. E. Walker

The discovery of a new type of a heavy long-lived particle (LLP) would be of fundamental significance due to their existence in many beyond the Standard Model scenarios. LLPs are anticipated in a wide range of physics models which extend…

High Energy Physics - Experiment · Physics 2019-08-13 Paul D. Jackson

Long-lived particles (LLPs) are a common feature in many beyond the Standard Model theories, including supersymmetry, and are generically produced in exotic Higgs decays. Unfortunately, no existing or proposed search strategy will be able…

High Energy Physics - Phenomenology · Physics 2017-02-01 John Paul Chou , David Curtin , H. J. Lubatti

We study a Lepton-Flavored Dark Matter model and its signatures at a future Muon Collider. We focus on the less-explored regime of feeble dark matter interactions, which suppresses the dangerous lepton-flavor violating processes, gives rise…

High Energy Physics - Phenomenology · Physics 2024-07-10 Pouya Asadi , Aria Radick , Tien-Tien Yu

We show, by using an extensive sample of viable supersymmetric models as templates, that indirect detection of dark matter through gamma rays may have a large potential for identifying the nature of dark matter. This is in particular true…

High Energy Physics - Phenomenology · Physics 2011-03-23 Lars Bergstrom , Torsten Bringmann , Joakim Edsjo

We propose a systematic programme to search for long-lived neutral particle signatures through a minimal set of displaced searches requiring significant missing transverse energy (dMETs). Our approach is to extend the well-established dark…

High Energy Physics - Phenomenology · Physics 2017-10-25 Oliver Buchmueller , Albert De Roeck , Matthew McCullough , Kristian Hahn , Kevin Sung , Pedro Schwaller , Tien-Tien Yu

Models where dark matter is a part of an electroweak multiplet feature charged particles with macroscopic lifetimes due to the charged-neutral mass split of the order of pion mass. At the Large Hadron Collider, the ATLAS and CMS experiments…

High Energy Physics - Phenomenology · Physics 2021-05-19 Alexander Belyaev , Stefan Prestel , Felipe Rojas-Abbate , Jose Zurita

We propose a simplified model of dark matter with a scalar mediator to accommodate the di-photon excess recently observed by the ATLAS and CMS collaborations. Decays of the resonance into dark matter can easily account for a relatively…

High Energy Physics - Phenomenology · Physics 2016-04-20 Mihailo Backovic , Alberto Mariotti , Diego Redigolo

A search is performed for a long-lived particle decaying into a final state that includes a pair of muons of opposite-sign electric charge, using proton-proton collision data collected at $\sqrt{s}=$ 13 TeV by the ATLAS detector at the…

High Energy Physics - Experiment · Physics 2020-02-04 ATLAS Collaboration

The search for physics beyond the Standard Model at the Large Hadron Collider is expanding to include unconventional signatures such as long-lived particles. This mini-review assesses the prospects for detecting electrically charged…

High Energy Physics - Phenomenology · Physics 2026-01-27 Rafał Masełek , Kazuki Sakurai

Many extensions of the Standard Model of particle physics predict a parallel sector of a new U(1) symmetry, giving rise to hidden photons. These hidden photons are candidate particles for cold dark matter. They are expected to kinetically…

If pairs of new colored particles are produced at the Large Hadron Collider, determining their quantum numbers, and even discovering them, can be non-trivial. We suggest that valuable information can be obtained by measuring the resonant…

High Energy Physics - Phenomenology · Physics 2012-11-30 Yevgeny Kats , Matthew J. Strassler

Long-lived particles (LLPs) provide an unambiguous signal for physics beyond the Standard Model (BSM). They have a distinct detector signature, with decay lengths corresponding to lifetimes of around nanoseconds or longer. Lepton colliders…

High Energy Physics - Experiment · Physics 2025-11-18 Yulei Zhang , Cen Mo , Xiang Chen , Bingzhi Li , Hongyang Chen , Jifeng Hu , Liang Li

The MATHUSLA detector is a simple large-volume tracking detector to be located on the surface above one of the general-purpose experiments at the Large Hadron Collider. This detector was proposed in [1] to detect exotic, neutral, long-lived…

High Energy Physics - Phenomenology · Physics 2018-01-17 David Curtin , Michael E. Peskin

This brief summary targets feebly interacting massive particles, FIMPs, which are interesting candidates for dark matter. The cosmic history of FIMP dark matter often leads to predictions of long-lived mediator particles at laboratory…

High Energy Physics - Phenomenology · Physics 2023-12-22 Susanne Westhoff

We explore the signals of a scenario in which the composite states of a strongly coupled hidden sector couple to the Standard Model through the neutrino portal, giving rise to the neutrino masses. We consider a framework in which the hidden…

High Energy Physics - Phenomenology · Physics 2025-12-18 Aqeel Ahmed , Zackaria Chacko , Niral Desai , Sanket Doshi , Can Kilic , Saereh Najjari , Ram Purandhar Reddy Sudha

We explore the possibility that bound states involving dark matter particles could be detected by resonance searches at the LHC, and the generic implications of such scenarios for indirect and direct detection. We demonstrate that resonance…

High Energy Physics - Phenomenology · Physics 2018-08-29 Gilly Elor , Hongwan Liu , Tracy R. Slatyer , Yotam Soreq

We study the experimental signatures of top flavored dark matter (top FDM) in direct detection searches and at the LHC. We show that for a dark matter mass above 200 GeV, top FDM can be consistent with current bounds from direct detection…

High Energy Physics - Phenomenology · Physics 2015-04-01 Can Kilic , Matthew D. Klimek , Jiang-Hao Yu

The search for new physics with long-lived particles is an ongoing and thriving effort in the High Energy Physics community which necessitates new search strategies such as novel algorithms, novel detectors, etc...For these reasons, one…

High Energy Physics - Phenomenology · Physics 2019-05-27 P. Q. Hung
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