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Matthew Buican, Some Applications of Free Supersymmetric Fields (2:30 PM - 3:45 PM)

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Zare (3:30 PM - 5:30 PM)

Thomas Steingasser, Higgs criticality in and beyond the Standard Model (2:00 PM - 3:00 PM)

-- Abstract: Both parameters in the Higgs field's potential, its mass and quartic coupling, appear fine-tuned to near-critical values, which gives rise to the hierarchy problem and the metastability of the electroweak vacuum. Whereas such behavior appears puzzling in the context of particle physics, it is a common feature of dynamical systems, which has led to the suggestion that the parameters of the Higgs potential could be set through some dynamical process. In my talk, I will discuss how this notion could be extended to physics beyond the Standard Model. I will first explain what it means for the parameters of the Higgs potential to be “critical”, with a particular focus on the fact that there exist, a priori, multiple realizations of this notion. I will then discuss some results which indicate that some of the tunings necessary to achieve criticality are, in fact, not independent. (See, e.g., [2108.09315].) Furthermore, I will explain a simple technique that allows to efficiently identify critical sets of parameters, in many cases allowing for analytical results. In the second half of my talk, I will present a recent conjecture suggesting that, whatever mechanism is ultimately responsible for the criticality of the Higgs, also affects related BSM physics. Most importantly, I will argue that this allows for concrete, measurable predictions, which are, in the best case, independent of the concrete mechanism causing criticality. I will first illustrate this for the case that the scale of new physics lies beyond the so-called instability scale, which allows for an efficient EFT treatment. (See, e.g., [2307.10361].) This scenario can potentially be checked through cosmological observations, for which I will provide some first, tentative results. Lastly, I will talk about ongoing work to extend our approach to scenarios with new physics below the instability scale.

Fiona Seibold, Scattering on effective strings and compactified membranes (4:00 PM - 5:15 PM)

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, Grad Pheno Journal Club (3:30 PM - 4:45 PM)

Luca Delacrétaz, Bound on thermalization from hydrodynamic fluctuations (2:00 PM - 3:15 PM)

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Federico Ambrosino, Exploring mesons in Generalized QCD_2 with integrability (12:00 PM - 1:15 PM)

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Zare (3:30 PM - 5:30 PM)

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, Grad Pheno Journal Club (3:30 PM - 4:45 PM)

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Xingyang Yu, Stringy Approach to SymTFTs and Categorical Symmetries (2:00 PM - 3:15 PM)

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Abhay Narayan Pasupathy, Teaching an Old Dog Some New Tricks (4:00 PM - 5:30 PM)

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Alon Farragi, String Derived Z′ Model at an Upgraded Superconducting Super Collider (12:30 PM - 1:45 PM)

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Chris Hull, The action for self-dual p-form gauge fields and the geometry of gravitons (2:00 PM - 3:15 PM)

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Bingrong Yu, Axion dark matter from inflation-driven quantum phase transition (2:00 PM - 3:00 PM)

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, Grad Pheno Journal Club (3:30 PM - 4:45 PM)

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Reza Javadi Nezhad, Soft Symmetries in Gauge Theories (2:00 PM - 3:30 PM)

Zare (3:45 PM - 5:30 PM)