Unveiling the secrets of new physics through top quark tagging

R Sahu, S Ashanujjaman, K Ghosh - The European Physical Journal …, 2024 - Springer
The ubiquity of top-rich final states in the context of beyond the Standard Model (BSM)
searches has led to their status as extensively studied signatures at the LHC. Over the past …

and survival of the fittest scalar leptoquark

D Bečirević, S Fajfer, N Košnik, L Pavičić - Physical Review D, 2024 - APS
Motivated by the long-standing discrepancy in lepton flavor universality ratios RD and RD*
we assess the status of scalar leptoquark states R 2, R˜ 2 and S 1 which can in principle …

Non-universal probes of composite Higgs models: new bounds and prospects for FCC-ee

BA Stefanek - Journal of High Energy Physics, 2024 - Springer
A bstract We study the leading loop-level phenomenology of composite Higgs models via
the effective field theory of a strongly interacting light Higgs and top quark (SILH+ TQ). We …

Vector-like quarks: status and new directions at the LHC

A Banerjee, E Bergeaas Kuutmann, V Ellajosyula… - SciPost Physics …, 2024 - scipost.org
Experimental searches for vector-like quarks have until now only considered their decays
into Standard Model particles. However, various new physics scenarios predict additional …

Flavour deconstructing the composite Higgs

S Covone, J Davighi, G Isidori, M Pesut - Journal of High Energy Physics, 2025 - Springer
A bstract We present a flavour non-universal extension of the Standard Model combined
with the idea of Higgs compositeness. At the TeV scale, the gauge groups SU (2) R and U …

Investigation of Charged Higgs Bosons Production from Vector-Like Quark Decays at Collider

R Benbrik, M Berrouj, M Boukidi - arXiv preprint arXiv:2408.15985, 2024 - arxiv.org
Within the extended framework of the Two-Higgs-Doublet Model Type II (2HDM-II),
enhanced by a vector-like quark (VLQ) doublet $ TB $, we present a comprehensive …

On the family discrimination in 331-model

K Huitu, N Koivunen, T Kärkkäinen… - arXiv preprint arXiv …, 2024 - arxiv.org
In the so-called 331-models the gauge anomalies cancel only if there are three generations
of fermions. This requires one of the quark generations to be in a different representation …

[HTML][HTML] Search for pair-produced vector-like quarks coupling to light quarks in the lepton plus jets final state using 13 TeV collisions with the ATLAS detector

G Aad, E Aakvaag, BK Abbott, S Abdelhameed… - 2024 - hal.science
A search is presented for the pair-production of heavy vector-like quarks (VLQs) that each
decay into a $ W $ boson and a light quark. This study focuses on events where one $ W …

Automatizing the search for mass resonances using BumpNet

JF Arguin, G Azuelos, É Baril, I Bessudo… - arXiv preprint arXiv …, 2025 - arxiv.org
The search for resonant mass bumps in invariant-mass distributions remains a cornerstone
strategy for uncovering Beyond the Standard Model (BSM) physics at the Large Hadron …

Search for Vector-like Quark, Heavy Neutral Lepton and Long-lived Particles at ATLAS and CMS

S Grancagnolo - arXiv preprint arXiv:2405.08782, 2024 - arxiv.org
Several theories beyond the Standard Model (BSM) predict heavy neutral leptons, or long-
lived particles with unique signatures which are difficult to reconstruct. Another area of …