Conveners
Higgs Potential, Di-Higgs, and Multi-Higgs
- Andreas Papaefstathiou (Kennesaw State University, GA, USA)
- Liza Brost (Brookhaven National Laboratory (US))
- Marina Kolosova (University of Florida (US))
Higgs Potential, Di-Higgs, and Multi-Higgs
- Marina Kolosova (University of Florida (US))
- Andreas Papaefstathiou (Kennesaw State University (US))
- Liza Brost (Brookhaven National Laboratory (US))
Higgs Potential, Di-Higgs, and Multi-Higgs
- Andreas Papaefstathiou (Kennesaw State University (US))
- Liza Brost (Brookhaven National Laboratory (US))
- Marina Kolosova (University of Florida (US))
- William Balunas (University of Oxford (GB))
Higgs Potential, Di-Higgs, and Multi-Higgs
- Marina Kolosova (University of Florida (US))
- Liza Brost (Brookhaven National Laboratory (US))
- William Balunas (University of Oxford (GB))
- Andreas Papaefstathiou (Kennesaw State University (US))
Description
Talks are 20' (presentation) + 5' (discussion)
Main auditorium, 20 Washington Place
Higgs boson pair production (HH) plays a central role in probing the Higgs boson self-interactions, which are key to understanding the shape of the Higgs potential and the mechanism of electroweak symmetry breaking. This talk presents the latest results from the ATLAS experiment on non-resonant Higgs boson pair production, based on the full Run 2 dataset collected at\sqrt{s} = 13 TeV, with the...
A basic research goal of high energy physicists is to shed light on the reality of the Higgs mechanism through the study of the Higgs potential. Indeed an important test of the Standard Model is a determination of the form of the Higgs potential and the Higgs field self-coupling. The trilinear self-coupling can be extracted from the measurement of non-resonant Higgs boson pair (HH) production....
Precise predictions for double Higgs production are essential to probe the Higgs self-coupling at future colliders. A major source of theoretical uncertainty arises from the choice of the top-quark mass renormalization scheme, which strongly affects the predicted cross sections at high energy. In my talk, I will discuss the origin of these uncertainties and show that the mass effects follow a...
The most recent results from the CMS collaboration on measurements of non-resonant HH production using bbγγ final states and their combination using the data set collected by the CMS experiment at a centre of mass energy of 13.6 TeV will be presented
A direct probe of the Higgs boson trilinear self-coupling is possible via Higgs boson pair production, making di-Higgs analyses particularly interesting. In addition, HH production via vector boson fusion, the second-leading HH production process, has a unique sensitivity to the interaction between two Higgs bosons and two vector bosons. Furthermore, enhancements to the di-Higgs production...
We present improved measurement of HH→4b production cross section from Run 3 CMS data collected in 2022 and 2023, covering both resolved and merged topologies. We highlight the recent advancements and novel techniques to significantly enhance the analysis sensitivity.
A direct probe of the Higgs boson trilinear self-coupling is possible via Higgs boson pair production, making di-Higgs analyses particularly interesting. In addition, HH production via vector boson fusion, the second-leading HH production process, has a unique sensitivity to the interaction between two Higgs bosons and two vector bosons. Furthermore, enhancements to the di-Higgs production...
Multi-Higgs boson production processes can provide essential insights into the scalar sector of the Standard Model (SM). Exploring the production of three Higgs bosons is primarily motivated by the unique opportunity it offers to measure the Higgs quartic self-coupling. Although observing triple Higgs production within the SM presents significant experimental challenges at the LHC, due to its...
In the Standard Model, the ground state of the Higgs field is not found at zero but instead corresponds to one of the degenerate solutions minimising the Higgs potential. In turn, this spontaneous electroweak symmetry breaking provides a mechanism for the mass generation of nearly all fundamental particles. Experimentally, the Higgs boson trilinear and quadratic couplings and thereby the shape...
This talk presents a search for the production of a Higgs Boson in association with two vector bosons (VVH) via vector boson scattering (VBS). The VBS production of VVH is sensitive to both the Higgs boson trilinear self-coupling (HHH) and the quartic coupling between vector bosons and the Higgs boson (VVHH), potentially providing complementary constraints to those obtained from the di-Higgs...
The discovery of the Higgs boson with the mass of about 125 GeV completed the particle content predicted by the Standard Model. Even though this model is well established and consistent with many measurements, it is not capable to solely explain some observations. Many extensions of the Standard Model addressing such shortcomings introduce additional neutral Higgs-like bosons or additional...
Searches for resonant Higgs bosons decaying into two scalar bosons have been attracting increasing attention at the Large Hadron Collider (LHC). The CMS Collaboration has studied various X→YH final states, and many beyond-the-Standard-Model (BSM) theories predict new scalar particles produced in association with the Standard Model Higgs boson. To further explore this sector, we present...
Measurements of the Higgs boson’s decays to heavy quarks—especially the dominant H→bb̄ mode and the much rarer H→cc̄—pose formidable challenges at the LHC. In H→bb̄ searches, overwhelming hadronic backgrounds dilute the signal, while the small H→cc̄ branching fraction and the difficulty of distinguishing c‑jets from both b‑ and light‑flavour jets further complicate the measurement. Limited...
