PNU workshop on Composite Higgs : Lattice study and all

Contribution List

1. Registration

Deog Ki Hong (Pusan National University (KR))

19/02/2024, 14:00

afternoon 1

2. Non-perturbative aspects of composite Higgs models

Prof. Maurizio Piai (Swansea)

19/02/2024, 14:30

afternoon 1

Abstract: We live in a golden age for the study of non-perturbative aspects of field theories. Developments in effective field theory, gauge-gravity dualities, and lattice field theories make it possible to study with unprecedented accuracy models of new physics with strongly coupled origin, with relevant examples taken from the literature on composite Higgs models. We discuss in particular...

18. Gauging the Maximal Compact Subgroup of a Simple Lie Group

Sarada Rajeev (University of Rochester)

19/02/2024, 16:00

afternoon 2

Abstract: I will consider a class of theories where the gauge group K is the maximal compact subgroup of a non-compact simple group G (e.g., K=U(1) and G=SU(1,1) ). The matter fields are fermions in a unitary representation of G which decomposes to an infinite sum of irreps of K. The Zeta-function method regularizes the infinite sum over the fermions in loop diagrams. Some of these gauge...

5. Vacuum misalignment for electroweak symmetry breaking

Gabriele Ferretti

20/02/2024, 09:30

morning 1

Abstract: We discuss ways to trigger vacuum misalignment in strongly coupled gauge theories of interest to electroweak symmetry breaking. In these models the Higgs boson is realized as a pseudo-Nambu-Goldstone boson and acquires a vacuum expectation value due to the interaction of the Standard Model fermions with the fermionic bound states of the strong sector. We present sum rules that can be...

6. TBA

Anna Hasenfratz (university of colorado boulder)

20/02/2024, 11:00

morning 2

7. Composite Dark Matter Models from Sp(2N) Gauge Theory

Fabian Zierler (Swansea University)

20/02/2024, 14:30

afternoon 3

8. Free discussions

Gabriele Ferretti

20/02/2024, 16:00

afternoon 4

9. Lattice simulations with domain wall fermions

Chulwoo Jung (Brookhaven National Laboratory)

21/02/2024, 09:30

morning 3

We present the basics and the current status of dynamical ensemble
generation and measurements with Domain Wall Fermions.
Experiences in controlling the extent of the 5th dimension and the
residual symmetry breaking is discussed.

10. Reproducibility efforts in Sp(2N)

Ed Bennett

21/02/2024, 11:00

Morning 4

Abstract: Explicit reproducibility—the ability for others to obtain the same results by analysing the same data using the same techniques—is becoming an increasing requirement from funders and journals. For the last two years, our collaboration has sought to provide with each journal publication associated data and software, such that the plots and tables presented in the paper can be...

11. TBA

Dr Jong-Wan Lee (IBS-CTPU)

21/02/2024, 14:30

Afternoon 5

12. Discussions

Maurizio Piai (Swansea)

21/02/2024, 16:00

Afternoon 6

19. Zoom presentations

Biagio Lucini, Prof. C.-J. David Lin (National Yang Ming Chiao Tung University), Davide Vadacchino

21/02/2024, 17:00

Afternoon 6

13. Phenomenology of composite resonances in a realistic composite Higgs model

Giacomo Cacciapaglia (Centre National de la Recherche Scientifique (FR))

22/02/2024, 09:30

morning 5

Abstract: Composite Higgs models have been proposed and classified based on a confining gauge interactions and two species of fermions. The spectrum of such theories can be studied on the Lattice. I will discuss the phenomenology of various types of resonances which are always present in such models. Many states feature exotic quantum numbers and interesting final states that can be searched...

14. Uncovering doubly charged scalars with dominant three-body decays using machine learning

Thomas Dieter Flacke (Korea Advanced Institute of Science and Technology (KR))

22/02/2024, 11:00

Morning 6

Abstract: Many underlying models of a composite Higgs predict additional composite scalar resonances which can be searched for at the LHC. In this talk we present a survey of experimental constraints on pair-produced scalar resonances with decay channels motivated by underlying models of a composite Higgs. In the second part, we focus on a particular signature -- pair-produced  doubly-charged...

15. Lattice investigations of the chimera baryon spectrum in the Sp(4) gauge theory

Mr Paul Hsiao (NYMCTU)

22/02/2024, 14:30

Afternnon 7

Abstract: We study the Sp(4) gauge theory coupled to hyperquark matter fields. This theory potentially serves as an ultraviolet completion of the Standard model in the framework of composite Higgs models that utilise partial compositeness to generate the top-quark mass. We focus on the spectroscopy of chimera baryons, which are composite states composed of two fundamental and one antisymmetric...

16. Finite volume spectroscopy on the lattice using the HLT method

Mr Niccolo Forzano (Swansea)

22/02/2024, 16:00

Afternoon 8

Abstract: Spectroscopy is a fundamental matter in lattice gauge theories. In this talk, I will inspect a new technique used to perform finite volume spectroscopy, by fitting spectral densities. This will be shown, giving an overview of how one provides an estimate for spectral densities, and how to fit them. This will be done focusing on a mixed representation (fundamental and two-index...

17. Discussions

Dr Jong-Wan Lee (IBS-CTPU)

22/02/2024, 17:00

Afternoon 8