Axion-like particles at future colliders

M Bauer, M Heiles, M Neubert, A Thamm - The European Physical Journal …, 2019 - Springer
Axion-like particles (ALPs) are pseudo Nambu–Goldstone bosons of spontaneously broken
global symmetries in high-energy extensions of the Standard Model (SM). This makes them …

Standard Model physics at the HL-LHC and HE-LHC

P Azzi, S Farry, P Nason, A Tricoli… - arXiv preprint arXiv …, 2019 - arxiv.org
The successful operation of the Large Hadron Collider (LHC) and the excellent performance
of the ATLAS, CMS, LHCb and ALICE detectors in Run-1 and Run-2 with $ pp $ collisions at …

HEPfit: a code for the combination of indirect and direct constraints on high energy physics models

J de Blas, D Chowdhury, M Ciuchini… - The European Physical …, 2020 - Springer
HEPfit is a flexible open-source tool which, given the Standard Model or any of its
extensions, allows to (i) fit the model parameters to a given set of experimental …

Global electroweak fit and vector-like leptons in light of the Cabibbo angle anomaly

A Crivellin, F Kirk, CA Manzari, M Montull - Journal of High Energy Physics, 2020 - Springer
A bstract The “Cabibbo Angle Anomaly”(CAA) originates from the disagreement between the
CKM elements V ud and V us extracted from superallowed beta and kaon decays …

Interpreting the -mass anomaly in vectorlike quark models

J Cao, L Meng, L Shang, S Wang, B Yang - Physical Review D, 2022 - APS
The new measurement of W-boson mass by the CDF collaboration revealed a remarkable 7
σ disagreement with the Standard Model (SM) prediction. If confirmed by other experiments …

Global fit to modified neutrino couplings and the Cabibbo-angle anomaly

AM Coutinho, A Crivellin, CA Manzari - Physical review letters, 2020 - APS
Recently, discrepancies of up to 4 σ between the different determinations of the Cabibbo
angle were observed. In this context, we point out that this “Cabibbo-angle anomaly” can be …

Compilation of low-energy constraints on 4-fermion operators in the SMEFT

A Falkowski, M González-Alonso, K Mimouni - Journal of High Energy …, 2017 - Springer
A bstract We compile information from low-energy observables sensitive to flavor-conserving
4-fermion operators with two or four leptons. Our analysis includes data from e+ e− colliders …

High quality QCD axion and the LHC

A Hook, S Kumar, Z Liu, R Sundrum - Physical review letters, 2020 - APS
The QCD axion provides an elegant solution to the strong CP problem. While the minimal
realization is vulnerable to the so-called “axion quality problem,” we will consider a more …

On flavourful easter eggs for new physics hunger and lepton flavour universality violation

M Ciuchini, AM Coutinho, M Fedele, E Franco… - The European Physical …, 2017 - Springer
Within the standard approach of effective field theory of weak interactions for\varDelta B= 1 Δ
B= 1 transitions, we look for possibly unexpected subtle New Physics effects, here dubbed …

Searches for long-lived particles at the future FCC-ee

CB Verhaaren, J Alimena, M Bauer, P Azzi… - Frontiers in …, 2022 - frontiersin.org
The electron-positron stage of the Future Circular Collider, FCC-ee, is a frontier factory for
Higgs, top, electroweak, and flavour physics. It is designed to operate in a 100 km circular …