Conveners
BSM XIV
- Saarik Kalia (University of Minnesota)
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Navin McGinnis09/05/2023, 14:00BSM
New gauge forces in nature are among the most well-studied proposed ingredients for particle models of the dark sector. The popularity of such scenarios is driven by the simplicity of the low-energy effective theory needed to describe the associated phenomenology ranging from collider physics, astrophysical systems, and physics of the early universe. However, the origin of the parameters in...
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Prof. Roland Allen (Texas A&M University)09/05/2023, 14:15BSM
A new fundamental theory [1] unavoidably predicts supersymmetry, SO(N) grand unification, and a new description of all fundamental scalar bosons. As discussed in our previous papers [2-5] and many recent talks, this last feature in turn unavoidably predicts a dark matter WIMP which is consistent with all experimental and observational constraints, and which should be observable via direct...
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Mr Tom Schwemberger09/05/2023, 14:30Dark Matter
We demonstrate the ability of future dark matter experiments to probe beyond the standard model (BSM) effects in neutrino scattering of solar and atmospheric origin in models with heavy scalar and vector mediated interactions. Mapping the effective four-Fermi vertex of a scalar NSI to the well studied model of leptoquarks, we find that near future detectors can probe parameter space beyond the...
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vishnupk Padmanabhan Kovilakam09/05/2023, 14:45BSM
We present a minimal UV-complete model for sub-GeV thermal Dark Matter (DM) that primarily interacts with neutrinos and contributes to the generation of neutrino masses and mixings through quantum loop corrections at the one-loop level. In this configuration, DM can solely annihilate into SM neutrinos without affecting the Cosmic Microwave Background anisotropies. We find that the rate of...
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Jacqueline Lodman (Harvard University)09/05/2023, 15:00
Curvatons are light (compared to Hubble during inflation) spectator fields that potentially contribute adiabatic curvature perturbations post-inflation. They can thereby alter CMB observables such as the spectral index $n_s$, the tensor-to-scalar ratio $r$, and the local non-Gaussianity $f_{\rm NL}^{\rm (loc)}$. We systematically explore the observable space of a curvaton with a quadratic...
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Nina Elmer (Heidelberg University)09/05/2023, 15:15Higgs
We present an updated global SMEFT analysis in the Higgs and Electroweak sectors using the SFitter framework. We use a newly implemented marginalization procedure that allows comparison of Wilson coefficient results between profiling and marginalization methods. Marginalization is motivated by better scalability for high-dimensional analyses and provides faster numerical convergence compared...
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Margaret Susan Lutz (ATLAS)09/05/2023, 15:30BSM
Various theories beyond the Standard Model predict new, long-lived particles with unique signatures which are difficult to reconstruct and for which estimating the background rates is also a challenge. Signatures from displaced and/or delayed decays anywhere from the inner detector to the muon spectrometer, as well as those of new particles with fractional or multiple values of the charge of...
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Zhihan (Linda) Yuan09/05/2023, 15:45
Abstract: The Twin Higgs framework is a solution to the hierarchy problem that is compatible with LHC null results for colored top partner searches. The Higgs mass is stabilized via a hidden sector related to the SM by a Z2 symmetry that is softly broken in the IR to give the hidden Higgs a larger vev f, with f/v ~ 3-7 in the natural range. The Minimal Twin Higgs has an unacceptable...
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