Abstract: In the technical design report of the LHC experiments, measurements of the Higgs coupling to top and bottom quarks and the width of the Higgs were either predicted to be extremely challenging, if not impossible at the LHC. Yet, ATLAS and CMS have both produced interesting results for …
Abstract: I will describe how a simple model where dark matter has large elastic self-interactions (cross section over mass of order barns per GeV) can fully explain the observed diversity of all galactic rotation curves. I will summarize the constraints …
Abstract: Dark matter makes up 85% of the matter in our Universe, but we have yet to learn its identity. A broad array of search strategies are needed to probe for non-gravitational interactions between dark matter and ordinary matter. While …
Prof. Rouven Essig (TBA) " Direct Detection of sub-GeV Dark Matter" Read More »
Abstract: In this talk I will discuss the reliability of the Baryon Acoustic Oscillation (BAO) signal in the distribution of galaxies. The solid theoretical understanding of this observable means that it represents one of only a few cosmological observables that …
ABSTRACT: Experiments at the Large Hadron Collider are characterizing the top quark and its interactions to unexpected precision. The combination of direct searches for new particles and indirect constraints from precision measurements provides powerful limits on extensions of the Standard …
Marcel Vos (CERN) "Prospects for Top Physics at the LHC and Beyond" Read More »
ABSTRACT: One of the most enticing and popular additions to the Standard Model of particle physics, Supersymmetry, is the target of a wide range of searches at the Large Hadron Collider at CERN. The ATLAS and CMS experiments have produced …
Zachary Marshall (LBNL) "Title: Searching for SUSY in Big Data at the LHC" Read More »
Abstract: The ATLAS Detector is in the process of upgrading its Trigger and Data Acquisition system to include global processing of tracks using the FastTracKer (FTK). The FTK uses a parallelized structure to identify and reconstruct the properties of tracks …
Tova Holmes (ATLAS) "The FTK: Global Tracking for the ATLAS Trigger" Read More »
ABSTRACT: Despite the lack of a sparticle discovery at the Large Hadron Collider, and despite the fact that most of the discovery potential has shriveled to an upsetting size, supersymmetry (SUSY) remains the most motivated solution to the Standard Model's …
Larry Lee (Harvard) "Searches for Sneaky SUSY at the ATLAS Experiment" Read More »
ABSTRACT: The LBNL xTalk (“cross-talk”) series provides a forum for the exchange of ideas between groups and across lab divisions. Each seminar is focused on a theme which is confronted from two perspectives. In particular, the talks are given by …
Ben Nachman (LBNL) and Mateus Ploskon (LBNL) "Jet Substructure" Read More »