Particle Physics on the Plains​ 2023

Session

Collider 2

15 Oct 2023, 11:35

2048 Malott Hall (University of Kansas)

Conveners

Collider 2: Collider 2

• dorival Gonçalves (Oklahoma State University)

1. The Standard Model Precision Parameters at 200 GeV

Zamiul Alam (Washington University in St. Louis)

15/10/2023, 11:35

The Standard Model can be defined quantitatively by running parameters in a mass-independent renormalization scheme at a fixed reference scale. We provide a set of simple interpolation formulas that give the fundamental Lagrangian parameters in the MS bar scheme at a renormalization scale of 200 GeV, safely above the top-quark mass and suitable for matching to candidate new physics models at...

33. Benchmarks on Double Higgs Production

Miguel Angel Soto Alcaraz

15/10/2023, 11:53

The simplest extension that can be added to the SM is the addition of a real singlet scalar S, which can result in a double Higgs production if this is sufficiently heavy. New benchmark points are found by maximizing the production rate, which will allow to compare to the experimental results while this are being searched. A maximum branching ratio value of 0.79 was found while running a scan...

26. Non-linear top-Higgs CP violation

Alberto Navarro (Oklahoma State University)

15/10/2023, 12:11

The Higgs physics program at the Large Hadron Collider is actively seeking new sources of CP violation. An unexplored possibility is a significant non-linear realization of CP-violation, which is naturally described in non-linear Higgs Effective Field Theory (HEFT). We perform an analysis of the HL-LHC potential to constrain such interactions considering a large range of single and double...

3. Inclusive Higgs Rate and Forward Detection at High Energy Muon Collider

Peiran Li (University of Minnesota)

15/10/2023, 12:29

We study the inclusive Higgs production rate from the $ZZ$ fusion at future 10 TeV muon collider. With the possible forward detector placed at the high $\eta$ direction outside the shielding cone, the forward energetic muon particles can be detected. The Higgs signal process can be purified using the forward-dimuon information. We show that the 68% projected sensitivity on Higgs inclusive rate...

8. Theoretical Prediction for Double Higgs Production via Photon Fusion at Muon Colliders

Bathiya Samarakoon (Wichita State University)

15/10/2023, 12:47

Double Higgs production plays a crucial role in assessing the Higgs self-coupling (trilinear Higgs coupling), responsible for endowing elementary particles with mass and shaping the Higgs potential. Measuring the trilinear Higgs coupling at proton colliders necessitates high luminosity due to the rarity of processes involving it in the Standard Model. Nonetheless, Muon colliders offer distinct...

2. Top Yukawa Coupling Determination at High Energy Muon Collider

Ishmam Mahbub (University of Minnesota Twin Cities)

15/10/2023, 13:05

The Top Yukawa coupling profoundly influences several core mysteries linked to the electroweak scale and the Higgs boson. We study the feasibility of measuring the Top Yukawa coupling at high-energy muon colliders by examining the high-energy dynamics of the weak boson fusion to top quark pair processes. A deviation of the Top Yukawa coupling from the Standard Model would lead modified $V V...