BSM Higgs IV
- Ryan Gavin (Paul Scherrer Institut)
Daniel Pelikan (Uppsala University (SE))
The discovery of a Higgs-like boson with a mass of about 125 GeV has prompted the question of whether or not this particle is part of a much larger and more complex Higgs sector than that envisioned in the Standard Model. In this talk, the current results from the ATLAS Experiment regarding Beyond-the-Standard Model (BSM) Higgs hypothesis tests are outlined. Searches for additional Higgs...
61. LHC search for di-Higgs decays of stoponium and other scalars in events with two photons and two bottom jets
Ms Nilanjana Kumar (Ph.D student)
We study the prospects for LHC discovery of a narrow resonance that decays to two Higgs bosons, using the final state of two photons and two bottom jets. Our work is motivated in part by a scenario in which two-body flavor-preserving decays of the top squark are kinematically forbidden. Stoponium, a hadronic bound state of the top squark and its anti-particle, will then form, and may...
Mr Tyler Corbett (YITP Stony Brook)
A discussion of the role of Effective Lagrangians in current Higgs Physics. The talk will follow the publications: arXiv:1311.1823, 1304.1151, 1211.4580, and 1207.1344
Felix Yu (Fermilab)
We discuss exotic production modes of the Higgs boson and how their phenomenology can be probed in current Higgs analyses. We highlight the importance of differential distributions in disentangling standard production mechanisms from exotic modes. We present two model benchmarks for exotic Higgs production arising from chargino-neutralino production and study their impact on the...
Dr Piyush Kumar (Yale University)
We develop a systematic and general approach to study the effective Higgs Lagrangian in a supersymmetric framework in which the Higgs fields in the visible sector couple weakly to another sector. The extra sector may be strongly coupled in general. It is assumed to be superconformal in the ultraviolet, but develop a mass-gap with supersymmetry breaking in the infrared. The main technique used...
Joseph Bramante (University of Notre Dame)
After the Higgs discovery at the LHC, it is important to keep a sharp eye on potential alterations to the Higgs-top Yukawa coupling. As the most puissant contributor to negative running of the Higgs potential in the UV, the Higgs-top coupling is crucial to notions of naturalness and calculations of electroweak vacuum stability. This talk will focus on the two dimension six effective couplings...
Gustavo Marques Tavares (Boston University)
The recently discovered Higgs particle with a mass near 126 GeV presents new opportunities to explore Lorentz violation. Ultra-high-energy cosmic rays are one of the most sensitive testing grounds for Lorentz symmetry, and can be used to seek for and limit departures from Lorentz invariance in the Higgs sector. If the Higgs were to have a super- or sub-luminal maximal speed both Higgs and weak...
Dr Arsham Farzinnia (Tsinghua University)
We construct a minimal viable extension of the standard model (SM) with classical scale symmetry. Its scalar sector contains a complex singlet in addition to the SM Higgs doublet. The scale-invariant and CP- symmetric Higgs potential generates radiative electroweak symmetry breaking à la Coleman–Weinberg. Besides the 125 GeV SM-like Higgs particle, it predicts an additional CP-even Higgs and a...