OpenAccess

Magnetic Vortex Acceleration (MVA) from near critical density targets is one of the promising schemes of laser-driven ion acceleration. 3D particle-in-cell simulations are used to explore a more extensive laser-target parameter space than previously reported in the literature as well as to study the laser pulse coupling to the target, the structure of the fields, and the properties of the accelerated ion beam in the MVA scheme. [...]

Beam degradation is examined in a laser-plasma accelerator stage with a parabolic plasma channel when the laser pulse and/or the electron beam enters the channel off axis. Betatron oscillations in the beam become incoherent, resulting in a net increase of beam emittance through phase mixing. [...]

We report on the effect of laser spatiotemporal coupling in laser plasma accelerators. Pulse front tilt in the driving laser causes asymmetry in the wakefield, resulting in deflection of the electron beam from the laser axis. [...]

We report on lattice QCD calculations of the nucleon isovector axial, scalar, and tensor charges. Our calculations are performed on two 2+1-flavor ensembles generated using a 2-HEX-smeared Wilson-clover action at the physical pion mass and lattice spacings a≈0.116 and 0.093 fm. [...]

We present results on the calculation of the polarized 2- and 3-loop anomalous dimensions in a massive computation of the associated operator matrix element. We also discuss the treatment of $\gamma_5$ and derive results in the M-scheme.10

We recently introduced in [1910.03008] a 'boundary-to-bound' dictionary between gravitational scattering data and observables for bound states of non-spinning bodies. In this paper, we elaborate further on this (holographic) map. [...]

A beam telescope as one of the most important and often requested test beam equipment provides particle tracking to test beamusers. At the DESY II test beam facility, a new beam telescope called Lycoris based on a microstrip sensor has been designed toaddress the user demands for momentum measurement in a 1 T solenoid magnet or large area tracking with limited space (3:5 cmbetween the potential user device and the magnet inner wall). [...]

The radio technique for the detection of cosmic rays is nowadays a well-established experimentaltechnique, and several projects intend to adapt it for the detection of neutrinos. When a primaryparticle interacts with a target particle in a medium, a shower containing electrically chargedparticles is created, and an electric field is emitted. [...]

The detection of astrophysical neutrinos by IceCube has opened a new window for the observationof our universe. The use of antennas for detecting astroparticles has been proven usefuland accurate after many years of radio cosmic-ray detections, and will be a valuable asset forincreasing the statistics for the detection of neutrinos < 10PeV and reaching out to the highestenergies. [...]

The ARIANNA experiment in Antarctica is targeted at detecting the radio emission of neutrinointeractions in the ice. However, due to their antennas being deployed close to the surface, ARIANNAstations have routinely been used for cosmic ray detection. [...]