Phenomenology 2022 Symposium: From Virtual to Real

Session

BSM I

9 May 2022, 14:15

Lawrence Hall 105

Conveners

BSM I

• Shreyashi Chakdar (oklahoma state university)

169. New Physics in Triboson Event Topologies

Matthew Smylie

09/05/2022, 14:15

We present a study of the sensitivity to models of new physics of proton collisions resulting in three electroweak bosons. As a benchmark, we analyze models in which an exotic scalar field $\phi$ is produced in association with a gauge boson ($V=\gamma$ or $Z$). The scalar then decays to a pair of bosons, giving the process $pp\rightarrow \phi V\rightarrow V'V''V$. We interpret our results in...

92. New light vector bosons: electroweak precision measurements

Fernanda Huller

09/05/2022, 14:30

Focusing on the phenomenological constraints that precision measurements can provide on the gauge sector of the electroweak group, we aim to pursue a new precision program in which the most generic modifications due to new physics will be considered. We intend to apply this formalism to theories that extend the Standard Model gauge symmetry by a new Abelian group called $U(1)_{X}$. The gauge...

93. Complex Scalar Singlet Model Benchmarks

Samuel Lane (University of Kansas)

09/05/2022, 14:45

The complex scalar singlet extension has three massive scalar states with interesting decay chains which will depend on the exact mass hierarchy of the system. We find maximum branching ratios for resonant double Standard Model-like Higgs production, resonant production of a Standard Model-like Higgs and a new scalar, and double resonant new scalar production. This is particularly interesting...

179. Catching Heavy Vector Triplets with the SMEFT: from one-loop matching to phenomenology

Emma Geoffray (Heidelberg University)

09/05/2022, 15:00

An important question for both phenomenologists and experimentalists is whether one can put limits on UV model parameters by matching the full theory onto the SMEFT. I will show that this is possible and explore the complementarity between SMEFT and model-specific approaches.
In particular, I will focus on an additional theory uncertainty arising from the matching at one-loop and discuss how...

73. Search for heavy resonances in diboson final states at CMS

Irene Zoi (Fermi National Accelerator Lab. (US))

09/05/2022, 15:15

Searches for new resonances in di-boson final states (VV and VH, where V = W, Z) and tri-boson (VVV) final states, with the CMS detector are presented. The results are based on the large dataset collected during Run 2 of the LHC at a centre-of-mass energy of 13 TeV. The analyses are optimised for high sensitivity over a large range in resonance mass. Jet substructure techniques are used to...

78. Searches for new physics in events with leptons in the final state in CMS

Joseph Reichert (Cornell University (US))

09/05/2022, 15:30

Many new physics models, e.g., compositeness, extra dimensions, extended Higgs sectors, supersymmetric theories, and dark sector extensions, are expected to manifest themselves in the final states with leptons and photons. This talk presents searches in CMS for new phenomena in the final states that include leptons and photons, focusing on the recent results obtained using the full Run-II...

154. BSM Higgs decays and extended Higgs sectors in CMS

Siqi Yuan (Boston University (US))

09/05/2022, 15:45

This talk will cover research searches for extended HIggs sectors, including additional (charged) Higgs bosons and resonant HH production. The talk will also cover searches for BSM decays of the H(125) boson.