264 citations · 527 across the 27 of their papers we have counts for
28 papers
Indirect detection constraints on semi-annihilation of inert scalar multiplets
Hugues Beauchesne, Cheng-Wei Chiang
Certain models of inert multiplets allow for semi-annihilation processes, in which two dark matter candidates annihilate to a dark matter particle and a non-dark matter particle. T…
Dark matter semi-annihilation for inert scalar multiplets
Hugues Beauchesne, Cheng-Wei Chiang
Dark matter semi-annihilation is a process through which two dark matter candidates annihilate to a single dark matter particle and a non-dark matter particle. Such processes are c…
Impact of non-thermal phase-space distributions on dark matter abundance in secluded sectors
Hugues Beauchesne, Cheng-Wei Chiang
Many new physics models include secluded sectors that interact little with the Standard Model and whose internal interactions control the dark matter abundance. If these same inter…
Improving the performance of weak supervision searches using transfer and meta-learning
Hugues Beauchesne, Zong-En Chen, Cheng-Wei Chiang
Weak supervision searches have in principle the advantages of both being able to train on experimental data and being able to learn distinctive signal properties. However, the prac…
Contributions of inert electroweak multiplets to Higgs properties
Hugues Beauchesne, Cheng-Wei Chiang
New physics could manifest itself in the form of electroweak multiplets that interact at tree level with the Higgs boson but do not mix with Standard Model fields or acquire expect…
Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb of collisions at 13 TeV with the ATLAS detector
ATLAS Collaboration
A search for physics beyond the Standard Model inducing periodic signals in the dielectron and diphoton invariant mass spectra is presented using 139 fb of TeV…
Observability of the Higgs boson decay to a photon and a dark photon
Hugues Beauchesne, Cheng-Wei Chiang
Many collider searches have attempted to detect the Higgs boson decaying to a photon and an invisible massless dark photon. For the branching ratio to this channel to be realistica…
Uncovering tau leptons-enriched semi-visible jets at the LHC
Hugues Beauchesne, Cesare Cazzaniga, Annapaola de Cosa +4
This Letter proposes a new signature for confining dark sectors at the Large Hadron Collider. Under the assumption of a QCD-like hidden sector, hadronic jets containing stable dark…
Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 2021
Tulika Bose, Antonio Boveia, Caterina Doglioni +318
This is the Snowmass2021 Energy Frontier (EF) Beyond the Standard Model (BSM) report. It combines the EF topical group reports of EF08 (Model-specific explorations), EF09 (More gen…
Is the decay of the Higgs boson to a photon and a dark photon currently observable at the LHC?
Hugues Beauchesne, Cheng-Wei Chiang
Many attempts have been made to observe the decay of the Higgs boson to a photon and an invisible massless dark photon. For this decay to be potentially observable at the LHC, new…
Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report
Guillaume Albouy, Jared Barron, Hugues Beauchesne +51
In this work, we consider the case of a strongly coupled dark/hidden sector, which extends the Standard Model (SM) by adding an additional non-Abelian gauge group. These extensions…
Measuring properties of a dark photon from semi-invisible decay of the Higgs boson
Hugues Beauchesne, Cheng-Wei Chiang
Considerable efforts have been dedicated to discovering a dark photon via the decay of the Higgs boson to a photon and an invisible particle. A subject that is still mostly unexplo…
Event-level variables for semivisible jets using anomalous jet tagging
Hugues Beauchesne, Giovanni Grilli di Cortona
Semivisible jets are a characteristic signature of many confining dark sectors and consist of jets of visible hadrons intermixed with invisible stable particles. Since their initia…
Cosmology of the Twin Higgs without explicit breaking
Hugues Beauchesne, Yevgeny Kats
The cosmology of the Twin Higgs requires the breaking of the symmetry, but it is still an open question whether this breaking needs to be explicit. In this paper, we…
Mirror neutrons as dark matter in the Mirror Twin Two Higgs Doublet Model
Hugues Beauchesne
In addition to being a solution to the little hierarchy problem, the Mirror Twin Higgs provides a natural setting for Asymmetric Dark Matter. In its incarnation with only one Higgs…
Classification of dark pion multiplets as dark matter candidates and collider phenomenology
Hugues Beauchesne, Giovanni Grilli di Cortona
New confining sectors can contain a set of pseudo-Goldstone mesons that exhibit a complicated structure in terms of stability and relative masses. Stable ones can act as dark matte…
Searching for periodic signals in kinematic distributions using continuous wavelet transforms
Hugues Beauchesne, Yevgeny Kats
Many models of physics beyond the Standard Model include towers of particles whose masses follow an approximately periodic pattern with little spacing between them. These resonance…
Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
Juliette Alimena, James Beacham, Martino Borsato +198
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Had…
Dark matter in Hidden Valley models with stable and unstable light dark mesons
Hugues Beauchesne, Enrico Bertuzzo, Giovanni Grilli di Cortona
It is a distinct possibility that a Hidden Valley sector would have a spectrum of light particles consisting of both stable and unstable dark mesons. The simultaneous presence of t…
Collider phenomenology of Hidden Valley mediators of spin 0 or 1/2 with semivisible jets
Hugues Beauchesne, Enrico Bertuzzo, Giovanni Grilli di Cortona +1
Many models of Beyond the Standard Model physics contain particles that are charged under both Standard Model and Hidden Valley gauge groups, yet very little effort has been put in…
Constraints on the relaxion mechanism with strongly interacting vector-fermions
Hugues Beauchesne, Enrico Bertuzzo, Giovanni Grilli di Cortona
We study the experimental constraints on strongly interacting vector-fermions compatible with the relaxion mechanism and investigate any possible tuning. The focus is on a minimal…
LHC phenomenology and baryogenesis in supersymmetric models with a baryon number
Hugues Beauchesne, Kevin Earl, Thomas Gregoire
We study the phenomenology of a supersymmetric extension of the Standard Model with an -symmetry under which -charges correspond to the baryon number. This identification all…
The spontaneous breaking Twin Higgs
Hugues Beauchesne, Kevin Earl, Thomas Grégoire
The Twin Higgs model seeks to address the little hierarchy problem by making the Higgs a pseudo-Goldstone of a global symmetry that is spontaneously broken to . Gaug…
LHC constraints on Mini-Split anomaly and gauge mediation and prospects for LHC 14 and a future 100 TeV pp collider
Hugues Beauchesne, Kevin Earl, Thomas Gregoire
Stringent experimental constraints have raised the lower limit on the masses of squarks to TeV levels, while compatibility with the mass of the Higgs boson provides an upper limit.…