IRN Terascale @ IPHC Strasbourg

Session

Beyond the Standard Model

May 20, 2025, 9:30 AM

Amphi Grünewald (IPHC)

Presentation materials

lunch.pdf

17. Electroweak-inos constraints in the pMSSM with SModelS

Leo Constantin (LPSC)

5/20/25, 9:30 AM

BSM

After LHC Run 2, a large variety of searches is able to constrain supersymmetric models. ATLAS recently presented a summary of constraints from their Run 2 analysis sensitive to electroweak-inos on a scan of the phenomenological minimal supersymmetric standard model (pMSSM). Using the SModelS reinterpretation tool, we present our results for this pMSSM scan and compare our constraints with...

9. Probing a class of scotogenic models via Z- and Higgs boson decays

Adrian Darricau (LPCA)

5/20/25, 10:00 AM

BSM

We address the phenomenological impact of a well-motivated class of scotogenic models regarding electroweak precision observables.
In particular, we carry out a full computation of the next-to-leading order corrections to leptonic Higgs and Z-boson decays. We argue how
the current bounds (and future prospects) for the latter observables, together with constraints arising from lepton flavour...

11. New bound on the vectorial axion-down-strange coupling from $K^+ \to \pi^+ \nu \bar \nu$ data

Axel Iohner (LAPTh)

5/20/25, 11:00 AM

BSM

We analyze publicly available $K^+ \to \pi^+ \nu \bar{\nu}$ data collected by NA62 from 2016 to 2022 to constrain the fundamental vectorial coupling of the QCD axion to the down and strange quarks or, equivalently, the Peccei-Quinn scale $f_a$ rescaled by this coupling, obtaining $|(F_{V})_{23}| > 1.1 \times 10^{12}~\mathrm{GeV}$. Under the complementary assumption that axion production is...

2. Probing the general axion-nucleon interaction in water Cherenkov experiments

Mael Cavan (Lapth / USMB)

5/20/25, 11:30 AM

BSM

We consider an axion flux on Earth consistent with emission from the Supernova explosion SN 1987A. Using Chiral Perturbation Theory augmented with an axion, we calculate the energy spectrum of $a+N\to N+\gamma$ as well as $a+N\to N+\pi^0$, where $N$ denotes a nucleon in a water tank, such as the one planned for the Hyper-Kamiokande neutrino detection facility. Our calculations assume the most...

16. Search for emerging jets in ATLAS

Thomas Wojtkowski

5/20/25, 12:00 PM

BSM

This talk will present the recent search for emerging jets performed using LHC Run 3 data collected with the ATLAS detector.
This analysis considers the production of a pair of dark quarks undergoing showering and hadronization within a dark sector, forming long-lived dark mesons that decay back to Standard Model particles. The resulting signature is a pair of jets, each one associated to...