Journal Article

We use conformal symmetry to calculate the next to next to leading order (NNLO) anomalous dimension matrix (three loops) for flavor-singlet axial-vector QCD operators for spin N≤8 from a set of gauge-invariant two-point correlation functions. Combining this result with the recent calculation of the two-loop coefficient functions, we carry out the calculation of the γγ*→η and γγ*→η′ form factors at large momentum transfers to the NNLO accuracy in perturbative QCD..

The zip file 'Masspec_data.zip': Contains the raw data of the mass spectrometer measurements during the operando experiment (.rga and .ana files) for both samples. The folder also contains the exported data (.txt files) for readability and accessibility. [...]

Tooth enamel of most mammals shows alternating light-dark bands, called Hunter-Schreger bands (HSB), in longitudinal sections caused by a decussating arrangement of bundles of prisms, the unit building blocks of mammalian enamel. HSB is thought to increase resistance to abrasive food and mitigate crack propagation and hence is considered a mammalian adaptation to high-efficiency mastication. [...]

First order phase transitions are well motivated and extensively studied sources of gravitational waves (GWs) from the early Universe. The vacuum energy released during such transitions is assumed to be transferred primarily either to the expanding bubble walls, whose collisions source GWs, or to the surrounding plasma, producing sound waves and turbulence, which source GWs. [...]

Truncations of effective field theory expansions are technically necessary but inherently intertwined with the redundancies of general field redefinitions. This can be viewed as a juxtaposition of power-counting and theoretical uncertainties, which seek to estimate neglected higher-dimensional interactions through approaches based on community consensus. [...]

Cosmological first order phase transitions are a frequent phenomenon in particle physics beyond the Standard Model, and the corresponding gravitational wave signal offers a key probe of new physics in the early Universe. Depending on the underlying microphysics, the transition can exhibit either direct or inverse hydrodynamics, leading to a different phenomenology. [...]

The tracking system of the ATLAS experiment will be upgraded for the upcoming High-Luminosity Upgrade of the LHC (HL-LHC). The main building blocks of the new strip tracker aresilicon-strip modules that consist of a sensor and hybrid PCB’s. [...]

Strong first-order phase transitions in a dark sector offer a compelling explanation for the stochastic gravitational wave background in the nano-Hertz range recently detected by pulsar timing arrays (PTAs). We explore the possibility that such a phase transition at the same time gives mass to a stable fermion that accounts for the observed dark matter abundance and leads to testable effects in laboratory experiments. [...]

We investigate the potential of IAXO and its intermediate version, BabyIAXO, to detectaxions produced in core-collapse supernovae (SNe). Our study demonstrates that these experimentshave realistic chances of identifying SN axions, offering crucial insights into both axion physicsand SN dynamics. [...]

We present the La Silla Schmidt Southern Survey (LS4), a new wide-field, time-domain survey to be conducted with the 1 m ESO Schmidt telescope. The 268 megapixel LS4 camera mosaics 32 2k × 4k fully depleted CCDs, providing a ∼20 deg$^{2}$ field of view with 1$^{″}$ pixel$^{−1}$ resolution. [...]