High Energy Physics - Experiment Papers of the Week

We concentrate on the modifications to the atmospheric neutrino energy and angular spectra induced by one new oscillation frequency associated with the $\nu_3$ state and determine the parameter space that can be probed with atmospheric neutrinos at a DUNE-like detector.

LHC measurements extend production and polarization studies across broad kinematic ranges.

We propose a new set of functions, named Relative Spin Wave Functions (RSWFs), defined via covariant pure boosts to a common rest frame.

We present the first search for fixed-polarization dark photon (DP) dark matter in the 44-52$\mu\mathrm{eV}$ mass range, corresponding to 10.7-12.5GHz.

In this work, we define a regional anomaly score by summing the squared latent coordinates of the same flow within small detector regions around the point where the particle enters the calorimeter, with the threshold set using background showers alone.

We then show how adding a pseudoscalar channel to its architecture allows us to learn and interpret optimal observables and their CP properties. We demonstrate this for WBF-Higgs production at parton level and top pair production including detector effects.

We revisit the pNRQCD open-quantum-system description of bottomonium in a quark-gluon plasma, writing the full master equation in a spherical basis and establishing a framework for its numerical treatment.

Data-quality monitoring at the LHC decides, luminosity block by luminosity block, which collision data enter physics analyses, yet its methods cannot be compared openly because the experiments' monitoring data are not public.

We present the first next-to-next-to-leading-order (NNLO) predictions for inclusive color-singlet toponium hadroproduction within NRQCD in the zero-width limit for the top quark.

We present Celebi, a framework for organizing and preserving evolving physics analyses while keeping analysis definitions lightweight and separate from generated data products.

We present Celebi, an analysis-management framework that maintains a persistent connection between evolving analysis materials and their generated results.

In this paper, previous FASER searches for dark photons and axion-like particles (ALPs) are combined and interpreted as searches for a candidate X17 particle, the protophobic vector boson.

We formalize this: records form a lattice on which information is monotone; thinning a Poisson record scales Fisher information exactly by the retention; clustered records read out as sums cost the 1/(1+cv^2); and the quadrature budget a/sqrt(E) (+) b is the floor of every summed readout.

In this work, we show that the $X(3790)$ reported by the BESIII Collaboration is unlikely to be a genuine resonance, a conclusion that follows from the incompleteness of the BESIII experimental analysis.

We argue that the squark simplified model commonly used in collider analyses fails to represent realistic low-energy supersymmetric models and significantly underestimates squark production rates at hadron colliders.

The analysis uses proton-proton collision data at $\sqrt{s}$ = 13 TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$, recorded with the CMS detector at the CERN LHC.