Particle Physics on the Plains​ 2022 Part 2

Session

Session 5

23 Oct 2022, 09:00

2001 Malott Hall (University of Kansas)

Conveners

Session 5

• Kuver Sinha (University of Oklahoma)

42. Connecting Cabibbo Angle Anomaly and CDF W mass

Ritu Dcruz (Oklahoma State University)

23/10/2022, 09:00

High precision determinations of $V_{ud}$ and $V_{us}$ indicate a $\sim4\sigma$ deficit in the first-row unitarity of the CKM matrix, commonly referred to as the Cabibbo Angle Anomaly (CAA). We explore a vector-like quark solution to the anomaly in a UV-complete left-right symmetric model, in correlation with the recent $W$-boson mass shift reported by the CDF collaboration.

30. E6 Models in Light of Precision MW Measurements

Cash Hauptmann

23/10/2022, 09:20

We propose a solution to the recent W mass measurement by embedding the Standard Model within $E_6$ models. The presence of a new U(1) group shifts the W boson mass at the tree level and introduces a new gauge boson $Z′$ which has been searched for at collider experiments. In this article, we identity the parameter space that explains the new $W$ mass measurement and is consistent with current...

34. Leptoquark-vectorlike quark model for the CDF $m_{W}$ , $(g − 2)_{\mu}$, $R_{K^{(\ast)}}$ anomalies and neutrino mass

Talal Ahmed Chowdhury

23/10/2022, 09:40

Recently, the CDF collaboration has reported a substantial $7\sigma$ deviation of the W-boson mass from the Standard Model (SM) prediction. Furthermore, the Muon g-2 Experiment recently confirmed the longstanding tension in $(g −2)_{\mu}$. Besides, the updated result from the LHCb collaboration found evidence for the breaking of lepton universality in beauty-quark decays, which shows a...

44. First Order Electroweak Phase Transitions in the Standard Model with a Singlet Extension

Anthony Hooper

23/10/2022, 10:05

A common assumption about the early universe is that it underwent an electroweak phase transition (EWPT). Though the standard model (SM) is able to restore the electroweak symmetry through a smooth cross over PT, we require a strongly first-order PT to ensure electroweak baryogenesis, requiring us to look at new physics beyond the SM. The simplest case to extend the SM is to add a real singlet...

37. Resonant top pair searches at the LHC: a window to electroweak phase transition

AJAY Kaladharan

23/10/2022, 10:25

The dynamics of electroweak phase transition could have profound consequences for particle physics and cosmology. We study the prospects for the HL-LHC to probe the strong first-order electroweak phase transition (SFOEWPT) regime in the 2HDM. We focus on the Higgstrahlung channel $pp\to ZH/A$ with a resonant top-quark pair final state $H/A\to t\bar t$. We find that the top-quark pair final...