Conveners
BSM VIII
- Pouya Asadi (University of Oregon)
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Valentina Dutta (Carnegie-Mellon University (US))09/05/2023, 14:00BSM
The constituents of dark matter are still unknown, and the viable possibilities span a very large mass range. Specific scenarios for the origin of dark matter sharpen the focus on a narrower range of masses: the natural scenario where dark matter originates from thermal contact with familiar matter in the early Universe requires the DM mass to lie within about an MeV to 100 TeV. Considerable...
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Max Fieg09/05/2023, 14:15BSM
Neutral particles are notoriously difficult to observe through electromagnetic
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interactions. As a result, they naturally elude detection in most collider detectors. In this talk, I will point out that neutral particles that interact through a
dipole interaction can nevertheless be detected in far-forward detectors
designed to search for long-lived particles (LLPs). In contrast to... -
Peizhi Du09/05/2023, 14:30BSM
Dopant atoms in semiconductors can be ionized with ∼ 10 meV energy depositions, allowing for the design of low-threshold detectors. We propose using doped semiconductor targets to search for sub-MeV dark matter scattering or sub-eV dark matter absorption on electrons. In this talk, I will show that currently unconstrained cross sections could be tested with a 1 g-day exposure in a doped...
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Aparajitha Karthikeyan (Department of Physics and Astronomy, Texas A&M University)09/05/2023, 14:45BSM
We utilize photon and charged meson fluxes at proton beam targets to produce long lived particles (LLPs) via scattering and decay mechanisms. These particles encompass light scalars and gauge bosons that appear in theories like extended Higgs sectors, $U(1)_{L_{\mu}-L_{\tau}}$, $U(1)_{T_{3R}}$ etc. We look at the sensitivities of the above in the context of experiments like ArgoNeuT,...
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Joshua Forsyth09/05/2023, 15:00BSM
Exploring less studied signals of beyond the standard model physics can optimize the LHC's discovery potential and address open questions. Quirks are particles charged under a new $SU(N)$ color group with masses much larger than their confinement scale. This makes their collider signal qualitatively different from many standard searches and leads to interesting signals. I outline families of...
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Wenjie Huang09/05/2023, 15:15BSM
Modern-day accelerator neutrino facilities are excellent venues for searches for new-physics particles. Many distinct new-physics models predict overlapping signatures and phenomenology in these experiments. In this work, we advocate for the adoption of simplified frameworks when studying these types of new-physics signatures, which are characterized by a small number of primary variables,...
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Jaipratap Grewal09/05/2023, 15:30BSM
MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles) is a proposed detector at the LHC to search for Long Lived Particles (LLP). We present various trigger and efficiency studies crucial to determining the final design and sensor geometry of the detector. We also present exclusion plots for BSM models taking into account the actual expected geometric acceptance of MATHUSLA.
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Carlos Henrique de Lima (Carleton University)09/05/2023, 15:45BSM
In this work, we study the status of negative coupling modifiers in extended Higgs sectors, focusing on the ratio of coupling modifiers that probes custodial symmetry violation $\lambda_{WZ} = \kappa_{W}/\kappa_{Z}$. Higgs sectors with multiplets larger than doublets are the only weakly coupled models that give tree-level modifications to $\lambda_{WZ}$, and we explore all such models allowed...
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