Abstract: I will discuss the new (old) idea that dark matter may reside in a hidden sector whose interactions with the standard model are mediated by a dark photon. Possibilities for direct detection of such particles will be discussed. This …
ABSTRACT: At the end of the XIX century, Lord Kelvin summarized a widespread feeling among physicists by saying that "physics is essentially complete, save for two little clouds". The "clouds" he was referring to were the puzzling results from two measurements, the Michelson-Morley …
Precision measurements of Cosmic Microwave Background (CMB) temperature anisotropies over the last two decades have been a spectacular success, constraining all six parameters of the LambdaCDM cosmological model to the percent level. However, while CMB temperature is well explored, current …
Abstract: Precision measurements of electroweak observables offer a viable option for finding indications of new physics and also guidance for the next big discovery. In this talk, I will focus on the latest electroweak precision measurements at the LHC, with …
Stefano Camarda (CERN) "Electroweak precision physics at the LHC" Read More »
Abstract: The low noise, high spatial resolution and reliable performance of charge-coupled devices (CCDs) and complementary metal-oxide-semiconductor (CMOS) active-pixel sensors have made them detectors of choice for digital imaging. Although the slow time response of these devices has limited their …
Abstract: The discovery of neutrino oscillation, which implies neutrinos have non-zero masses, is the first instance of a conflict with the Standard Model of particle physics. The fruitful results from neutrino experiments in the past two decades have opened a …
Abstract: Silicon charged coupled devices (CCDs) have proven to be exceptional for the detection and measurement of photons and other ionizing radiation. Their low energy threshold of 50eV (~14 e-) have made them ideal for astronomical aplications and for detectors …
Abstract: Although the Standard Model (SM) of particle physics is a very successful theory, it fails to explain the origin of particles' mass. If the Higgs mechanism, developed in the 60s as a solution to this puzzle, is the correct …
For the phase 2 upgrade of the ATLAS experiment at the LHC, its inner detector will be replaced by a new all-silicon tracker, the Inner Tracker (ITk). This upgrade is necessary both because the inner detector will have reached its …
Timon Heim (LBNL) “Challenges of the ATLAS Phase 2 Tracker Upgrade” Read More »
ABSTRACT: We report a correlation between the radial acceleration traced by rotation curves and that predicted by the observed distribution of baryons. The same relation is followed by 2693 points in 153 galaxies with very different morphologies, masses, sizes, and …