Searches for new resonances in two-body invariant masses are performed using an unsupervised anomaly detection technique in events produced in pp collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the LHC. An autoencoder network is trained with 1% randomly selected collision events and anomalous regions are then defined containing events with high reconstruction...
The existence of dark matter (DM) is carried by a variety of astrophysical measurements, however the nature and properties of the DM are still largely unidentified. The presence of DM is not predicted by the Standard Model (SM), but many theories beyond the Standard Model (BSM) offer the study of DM. Weakly Interacting Massive Particles (WIMPs, denoted as chi) are frequently used as candidates...
In General Relativity (GR), the motion of quarks is assumed to be entirely taken into account when converting their energy of motion into their corresponding macroscopic energy at rest using E=mc² equation.
This is correct locally, but this motion generates also microscopic gravitational waves which propagate their space-time deformations everywhere. Therefore globally this motion yields...
The intrinsic angular momentum of particles is a very fundamental property, as there is no classical counter part for it, in particular for the case of spin 1/2. Despite this fundamentality, the electron spin has actually only been observed in composed systems, like in atoms or in solids. Even the famous Stern-Gerlach experiment, known to be the first clear indication for spin 1/2, is, for...
