[HTML][HTML] Feebly-interacting particles: FIPs 2022 workshop report

C Antel, M Battaglieri, J Beacham, C Boehm… - The European Physical …, 2023 - Springer
Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

Long-lived particles at the energy frontier: the MATHUSLA physics case

D Curtin, M Drewes, M McCullough… - Reports on progress …, 2019 - iopscience.iop.org
We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a
comprehensive survey of standard model (SM) extensions. LLPs are a common prediction of …

[HTML][HTML] The forward physics facility at the high-luminosity LHC

JL Feng, F Kling, MH Reno, J Rojo… - Journal of Physics G …, 2023 - iopscience.iop.org
High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large
number of particles along the beam collision axis, outside of the acceptance of existing LHC …

Observation of four-top-quark production in the multilepton final state with the ATLAS detector

G Aad, B Abbott, K Abeling, NJ Abicht, SH Abidi… - The European Physical …, 2023 - Springer
This paper presents the observation of four-top-quark (tt¯ tt¯) production in proton-proton
collisions at the LHC. The analysis is performed using an integrated luminosity of 140 fb-1 at …

The present and future status of heavy neutral leptons

AM Abdullahi, PB Alzás, B Batell… - Journal of Physics G …, 2023 - iopscience.iop.org
The existence of nonzero neutrino masses points to the likely existence of multiple Standard
Model neutral fermions. When such states are heavy enough that they cannot be produced …

Event generation with Sherpa 2.2

E Bothmann, GS Chahal, S Höche, J Krause, F Krauss… - SciPost Physics, 2019 - scipost.org
Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle
collisions in high-energy collider experiments. We summarize essential features and …

FeynCalc 9.3: New features and improvements

V Shtabovenko, R Mertig, F Orellana - Computer Physics Communications, 2020 - Elsevier
Abstract We present FeynCalc 9.3, a new stable version of a powerful and versatile
Mathematica package for symbolic quantum field theory (QFT) calculations. Some …

Reading the footprints of the B-meson flavor anomalies

C Cornella, DA Faroughy, J Fuentes-Martin… - Journal of High Energy …, 2021 - Springer
A bstract Motivated by the recent LHCb announcement of a 3. 1σ violation of lepton-flavor
universality in the ratio RK= Γ (B→ Kμ+ μ−)/Γ (B→ Ke+ e−), we present an updated …

Higgs physics at the HL-LHC and HE-LHC

M Cepeda, S Gori, P Ilten, M Kado, F Riva… - arXiv preprint arXiv …, 2019 - arxiv.org
The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a
success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a …

Theoretical uncertainties for cosmological first-order phase transitions

D Croon, O Gould, P Schicho, TVI Tenkanen… - Journal of High Energy …, 2021 - Springer
A bstract We critically examine the magnitude of theoretical uncertainties in perturbative
calculations of fist-order phase transitions, using the Standard Model effective field theory as …