ILC Workshop on Potential Experiments (ILCX2021)

Session

J: Global interpretations

29 Oct 2021, 13:00

Room #2 (Zoom Meeting ID: 823 6921 2312)

Presentation materials

Zoom Link (Room #2)

339. Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory

Ken Mimasu (King's College London)

29/10/2021, 13:00

Session J: Global interpretations

Oral presentation using Zoom

The search for effective field theory deformations of the Standard Model (SM) is a major goal of particle physics that can benefit from a global approach in the framework of the Standard Model Effective Field Theory (SMEFT). For the first time, we include LHC data on top production and differential distributions together with Higgs production and decay rates and Simplified Template...

92. Top electro-weak couplings, from the LHC to the ILC

Victor Miralles (IFIC-UV)

29/10/2021, 13:23

Session G: Top / Heavy flavour / QCD

Oral presentation using Zoom

As the heaviest particle of the model, with a mass close to the electroweak scale, the top quark is an interesting candidate to look for hints of new physics. The electroweak couplings of the top quarks are specially relevant in many extensions of the Standard Model. Indeed, as the top quark was not produced in the previous generation of electron-positron colliders most of its electro-weak...

372. Precision Z physics at the LHC in the flavorful SMEFT

Victor Breso (IFIC)

29/10/2021, 13:46

We study the forward-backward asymmetry $A_{FB}$ in $pp \rightarrow l^+ l^-$ at the Z peak within the Standard Model Effective Field Theory (SMEFT). We find that this observable provides per mille level constraints on the vertex corrections of the Z boson to quarks, which close a flat direction in the electroweak precision SMEFT fit. Moreover, we show that current $A_{FB}$ data is precise...

72. A global study of right-handed neutrinos with GAMBIT

Tomas Gonzalo (RWTH Aachen)

29/10/2021, 14:02

Session J: Global interpretations

Oral presentation using Zoom

The complementarity of searches for new physics has become increasingly important in recent years, and therefore global analyses of BSM models, including constraints from many sources, are necessary for a full understanding on their validity. In this talk I will describe a global analysis of a model with three right-handed neutrinos using the GAMBIT tool, with constraints from cosmological...

350. SMEFT global fits of Higgs, EW and di-boson data & Snowmass 2022 efforts

Jiayin Gu (Fudan University)

29/10/2021, 14:25

Session J: Global interpretations

Oral presentation using Zoom

With the completion of the Standard Model, there is no guarantee that new particles can be found at current or future colliders. Meanwhile, precision measurements of the Higgs and electroweak bosons at future lepton colliders offer a great opportunity for probing new physics beyond the Standard Model. The Standard Model Effective Field Theory (SMEFT) provides an ideal framework for a...

358. Discussion (if needed)

Sven Heinemeyer

29/10/2021, 15:00

349. Global SMEFT Fits for Snowmass 2022

Junping Tian (University of Tokyo)

Session J: Global interpretations

Oral presentation using Zoom

Comparing the capabilities of precision measurements at various future colliders is one of the important goal of Snowmass process. A team of us are working on a white paper for global SMEFT fits based on the input measurements supplied from future collider communities. In this talk we will introduce the status of this white paper about the scope and strategy of global fits, with a focus on...