Dynamical Dark Matter, MATHUSLA, and the Lifetime Frontier

Abstract

MATHUSLA is a proposed surface detector at CERN that would be able to observe the decays of non-hadronic electrically neutral long-lived particles (LLPs) with almost no background or trigger limitations. This would allow MATHUSLA to probe sub-GeV to TeV masses and lifetimes up to $c\tau \sim 10^7\mathrm{m}$. MATHUSLA can play an important role in probing dark-matter scenarios involving extended hidden sectors, where additional dark states often manifest as LLPs. A prime example of such a scenario is furnished by the Dynamical Dark Matter (DDM) framework, which intrinsically gives rise to large ensembles of dark states exhibiting a broad range of masses and lifetimes. In this paper, we examine the extent to which MATHUSLA can probe the DDM parameter space, and we demonstrate that MATHUSLA may be capable of providing direct confirmation of certain unique aspects of the DDM framework which might be difficult to probe in other ways.

arXiv comment11 pages, LaTeX, 2 figures. A preliminary version of some of the results of this paper has been included within the official MATHUSLA white paper arXiv:1806.07396, which summarizes the physics case for the MATHUSLA detector

References in corpus (40)

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Supersymmetric Dark Matter
• Dark Matter Candidates from Particle Physics and Methods of Detection
• Freeze-In Production of FIMP Dark Matter
• Echoes of a Hidden Valley at Hadron Colliders
• Measuring masses of semi-invisibly decaying particles pair produced at hadron colliders
• The SIMP Miracle
• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• FASER: ForwArd Search ExpeRiment at the LHC
• Discovering the Higgs Through Highly-Displaced Vertices
• Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
• Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb
• New Detectors to Explore the Lifetime Frontier
• Probing Dark Forces and Light Hidden Sectors at Low-Energy e+e- Colliders
• Search for new phenomena in dijet events using 37 fb${}^{-1}$ of $pp$ collision data collected at $\sqrt{s}=$13 TeV with the ATLAS detector
• Dynamical Dark Matter: I. Theoretical Overview
• Elastically Decoupling Dark Matter
• Search for narrow resonances decaying to dijets in proton-proton collisions at sqrt(s) = 13 TeV
• Viscoelastic hydrodynamics and holography
• Dynamical Dark Matter: II. An Explicit Model
• BBN for the LHC: constraints on lifetimes of the Higgs portal scalars
• Co-Decaying Dark Matter
• Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at sqrt(s) = 13 TeV
• Lectures on Dark Matter Physics
• Multiple dark matter scenarios from ubiquitous stringy throats
• Dynamical Dark Matter from Strongly-Coupled Dark Sectors
• Distinguishing Dynamical Dark Matter at the LHC
• A New Direction in Dark-Matter Complementarity: Dark-Matter Decay as a Complementary Probe of Multi-Component Dark Sectors
• Analysis of Long Lived Particle Decays with the MATHUSLA Detector
• Dynamical Dark Matter and the Positron Excess in Light of AMS
• Phenomenological Constraints on Axion Models of Dynamical Dark Matter
• Direct Detection of Dynamical Dark Matter
• Lines and Boxes: Unmasking Dynamical Dark Matter through Correlations in the MeV Gamma-Ray Spectrum
• Strategies for Probing Non-Minimal Dark Sectors at Colliders: The Interplay Between Cuts and Kinematic Distributions
• Boxes, Boosts, and Energy Duality: Understanding the Galactic-Center Gamma-Ray Excess through Dynamical Dark Matter
• Dynamical Dark Matter from Thermal Freeze-Out
• A Tale of Two Timescales: Mixing, Mass Generation, and Phase Transitions in the Early Universe
• Randomness in the Dark Sector: Emergent Mass Spectra and Dynamical Dark Matter Ensembles
• Off-Diagonal Dark-Matter Phenomenology: Exploring Enhanced Complementarity Relations in Non-Minimal Dark Sectors
• Kaluza-Klein Towers in the Early Universe: Phase Transitions, Relic Abundances, and Applications to Axion Cosmology

Cited by in corpus (14)

• Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
• Expression of Interest for the CODEX-b Detector
• R-parity Violation and Light Neutralinos at CODEX-b, FASER, and MATHUSLA
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Enhancing Sensitivities to Long-lived Particles with High Granularity Calorimeters at the LHC
• Light Scalars at FASER
• Non-Minimal Dark Sectors: Mediator-Induced Decay Chains and Multi-Jet Collider Signatures
• Constraining Dark-Matter Ensembles with Supernova Data
• Z-portal Continuum Dark Matter
• Enhanced long-lived dark photon signals at lifetime frontier detectors
• The Continuum Dark Matter Zoo
• Discovery potential of a long-lived partner of inelastic dark matter at MATHUSLA in $U(1{)}_{X_3}$ extension of the standard model
• Continuum Dark Matter
• The Forward Physics Facility at the High-Luminosity LHC