European Organization for Nuclear Research

Atmosphere-Driven Phase Engineering in MoO x : From α-MoO3 Microbelts to MoO2 Revealed by Atomic-Scale Hyperfine Probes

Abstract This work reports a comprehensive investigation of the structural, morphological, and local-scale evolution of molybdenum oxides (MoOx) derived from a chelated precursor obtained via thermal decomposition of molybdenum(II) acetate. By systematically controlling annealing...

Application of LHC gas recuperation systems for methane emission control in livestock housing

Abstract The CH4rLiE (CH4 Livestock Emission) project presents a dry-gas laboratory proof-of-principle for mitigating methane (CH4) emissions in livestock housing. This work investigates the technical feasibility of capturing CH4 at low concentrations by adapting gas recovery sys...

Machine Learning on Heterogeneous, Edge, and Quantum Hardware for Particle Physics

The next generation of particle physics experiments will face an era of challenges in data acquisition, due to unprecedented data rates and volumes along with extreme environments and operational constraints. Harnessing these data for scientific discovery demands real-time infere...

Dilaton physics from asymptotic freedom

The dilaton is investigated from first principles within an asymptotically free Gross-Neveu-Yukawa theory in three dimensions. In the limit of many fermion flavours, the theory features a finite line of strongly interacting fixed points. At its endpoint, a dilaton arises as the m...

Radiative Corrections and Reheating in Supergravity Models of Inflation

We consider the effects of radiative corrections in Starobinsky-like models of inflation, concentrating on models of inflation formulated in N=1 no-scale supergravity. Inflaton couplings with matter fields are necessary for reheating and these have an impact on loop corrections d...

Calibration and performance of proANUBIS: A proof-of-concept detector for the ANUBIS experiment

Long-lived particles with lifetimes τ > 10 ps are predicted by many extensions of the Standard Model with viable dark matter candidates. The ANUBIS experiment proposes to extend the experimental sensitivity to long-lived particles by instrumenting the ceiling of the ATLAS cavern...

Field profiling and magnetic axis reconstruction in solenoids using a translating induction-coil magnetometer

Abstract This paper presents a method for simultaneously measuring the axial field profile and reconstructing the magnetic axis of solenoids using a translating induction-coil magnetometer. The magnetometer consists of a 22-layer PCB sensor, which is tracked by a laser tracker to...

Development of ultrafast and radiation-hard GAGG for the next-generation of High-Energy Physics calorimeters

The evolution of High Energy Physics (HEP) toward future collider experiments with High Luminosity (HL), such as the HL-LHC, requires the development of scintillating materials that combine high density, excellent radiation hardness and an ultrafast response. While Cerium-doped G...

Order Parameter Discovery for Quantum Many-Body Systems

Quantum phase transitions reveal deep insights into the behavior of many-body quantum systems, but identifying these transitions without prior knowledge of order parameters remains a significant challenge. In this work, we introduce a method for constructing phase diagrams using...

Selective Admission and Occupancy-Targeted Placement for Carbon-Aware Kubernetes Scheduling: A Measurement- Calibrated CERN Case Study

Temporal carbon-aware scheduling can reduce electricity-related emissions, but deferring work to lower carbon-intensity intervals can concentrate demand and increase waiting. We present benefit-gated deferral (BGD), a selective admission policy for nonpreemptive batch jobs on sha...

Cyclic thermodynamics of Bayesian updating: class-relative costs, Gaussian modes, and the limits of universality

Abstract Bayesian updating determines an ideal posterior after an observation, but it does not determine the physical resources required to produce, expose, and reset a posterior representation. We formulate Bayesian inference as a cyclic task only after specifying an admissible...

State-of-the-art electroweak Higgs boson pair production in association with two jets at the LHC in the Standard Model and beyond

We present a systematic comparison of two state-of-the-art tools for the simulation of Higgs boson pair production via vector boson fusion (VBF) as implemented in the Monte- Carlo tools GoSam+Whizard and the POWHEG-BOX. The comparison is carried out at LO and NLO-QCD in the SM an...

Measurements of the production of W$$^{\pm }$$ and Z$$^0$$ bosons in pp collisions at $$\sqrt{s} = 13$$ TeV

Abstract Measurements of the production of the W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons at midrapidity in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV with ALICE at the Large Hadron Collider (LHC) are presented. The W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons are detected via their (di)e...

Lorentz-equivariance without limitations

Lorentz Local Canonicalization (LLoCa) ensures exact Lorentz-equivariance for arbitrary neural networks with minimal computational overhead. For the LHC, it equivariantly predicts local reference frames for each particle and propagates any-order tensorial information between them...

On quivers, spectral networks and black holes

Abstract It was recently found that connection coefficients of the Heun equation can be derived in a closed form using crossing symmetry in two-dimensional Liouville theory via the Nekrasov–Shatashvili functions. In this work, we systematize this approach to second-order linear O...

Characterising the role of final state interactions on neutrino energy estimation in the DUNE and Hyper-K era

Abstract The Deep Underground Neutrino Experiment (DUNE) and Hyper-Kamiokande (Hyper-K) will measure neutrino oscillation parameters with an unprecedented precision that requires neutrino energy estimation to be controlled at the few-MeV level. A central challenge in achieving th...

Road transport of trapped antiprotons

Abstract Low-energy antiprotons confined in ultrahigh-vacuum Penning traps 1 enable precision investigations of charge, parity and time-reversal (CPT) invariance 2 to test the fundamental symmetry between matter and antimatter. These studies are driven by the search for physics b...

The Second Nitrogen Fits: Development of Diazine-Based Macrocyclic Chelators to Stably Bind Radionuclides Used in Targeted Alpha Therapy

Abstract Identifying suitable chelators for 212Pb, 223Ra, and 225Ac and their diagnostic counterparts 131Ba, 133La, and 203Pb remains one of the major challenges in the development of radiopharmaceuticals for targeted alpha therapy. Four novel macrocyclic chelators containing the...

Closing the loop on Φ4 in AdS3

A bstract We compute the one-loop correction to the CFT data of all double-trace operators [ ϕϕ ] n,ℓ for a Φ 4 theory in AdS 3 , for arbitrary values of n , ℓ , and of the scaling dimension ∆ ϕ > 1. Working in the spectral representation, the t -channel one-loop bubble diagram i...

Resonance- and width-aware parton shower evolution and NLO matching

A bstract We introduce a technique for the next-to-leading order accurate simulation of $${e}^{+}{e}^{-}\to {W}^{+}{W}^{-}b\overline{b }$$ that respects the resonant nature of the process above and near the top-quark pair production threshold. The parton-shower evolution, infrare...