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 »
Abstract: Cosmological observations have provided us with answers to age-old questions, involving the age, geometry, and composition of the universe. However, there are profound questions that still remain unanswered. I will describe ongoing efforts to shed light on some of …
Abstract: I will discuss analyses leading to two recent candidate detections of photons from dark matter. Specifically, these are: first, gamma rays in a continuum "bump" at a few GeV which can be due to WIMP-like dark matter annihilation in …
ABSTRACT: Elucidating the nature of dark matter is one of the central challenges in fundamental physics. Dark matter originating as a thermal relic from the early Universe is arguably one of the most compelling paradigm, and WIMP searches have been …
Bertrand Echenard (Caltech) "Probing light dark matter with the LDMX experiment" Read More »
Abstract: Strong HI absorbers are essentially the largest foreground contamination for Lyman alpha forest surveys, and so a better understanding of them is necessary for achieving the goals of future Lyman alpha cosmology surveys. I will talk about a new …
Abstract: The most common machine learning algorithms operate on finite-dimensional vectorial feature representations. In many applications, however, the natural representation of the data consists of more complex objects, for example functions, distributions, and sets, rather than finite-dimensional vectors. In this …
Barnabas Poczos (CMU) Title: Distribution Regression and its Applications Read More »
Abstract: In this talk, I will present our joint measurement of cosmic infrared background (CIB) and CII line emission from large scales at redshift z=2.5 using an MCMC analysis of cross-correlations of the 3 high-frequency Planck bands with both SDSS-III …
Anthony Pullen (NYU) Title: Revealing CII Emission with LSS Cross-correlations Read More »