UC Davis Particle Physics Seminars

View Top 200 Chart

Back to Rankings Page

Science & Medicine
**UC Davis Particle Physics Seminars**

This album features seminars on theoretical and experimental particle physics. Topics include supersymmetry, the Large Hadron Collider, electroweak symmetry breaking, cosmology and gravity.

Latest Episodes:

No models for direct detection - a general analysis of DM experiments Feb 06, 2012

Show notes

Ami Katz discusses a general model independent analysis of DM experiments.

Fourth Generation Searches at ATLAS Jan 31, 2012

Show notes

Katherine Copic discusses ATLAS's first searches for fourth generation quarks, including a preview of new results for the winter conferences. While we search explicitly for fourth generation quarks, the final states examined are also more broadly applicable to searching for wider classes of new phenomenona.

Muon colliders and neutrino factories Jan 30, 2012

Show notes

Jared Kaplan discusses muon colliders and neutrino factories. They are aimed at achieving the highest lepton-antilepton collision energies and precision measurements of parameters of the neutrino mixing matrix. The performance and cost of these depend sensitively on how well a beam of muons can be cooled. Recent progress in muon cooling design studies and prototype tests nourish the hope that such facilities can be built during the next decade. The status of the key technologies and their various demonstration experiments will be summarized.

The Holographic S-Matrix Jan 30, 2012

Show notes

Jared Kaplan discusses how to derive a simple relation between the Mellin amplitude for AdS/CFT correlation functions and the bulk S-Matrix in the flat spacetime limit, proving a conjecture of Penedones. As a consequence of the Operator Product Expansion, the Mellin amplitude for any unitary CFT must be a meromorphic function with simple poles on the real axis. This provides a powerful and suggestive handle on the locality vis-a-vis analyticity properties of the S-Matrix. We begin to explore analyticity by showing how the familiar poles and branch cuts of scattering amplitudes arise from the holographic description. We use this to show how the existence of small black holes in AdS leads to a universal prediction for the conformal block decomposition of the dual CFT.

Top AFB at the LHC Jan 17, 2012

Show notes

Jean-Francois Arguin discusses how ecent measurements of the top quark charge asymmetry performed at both CDF and DZero produced tantalizing deviations from the SM prediction. Given that the dataset for these analyses will not improved dramatically, decisive confirmations will be required by the LHC experiments. After reviewing the measurements performed at the Tevatron, Arguin will discuss the challenges to perform these measurements at the LHC by describing the ATLAS measurement. In particular Arguin will describe how one needs to exploit the large datasets of top quarks at the LHC to compensate for the difficulty to perform such a measurement in a symmetric proton-proton collider environment.

MFV SUSY: A natural alternative to R-parity Dec 05, 2011

Show notes

Csaba Csaki discusses how minimal flavor violation in supersymmetry can give a consistent phenomenology with resorting to R-party.

Ultralight Axions and Forecasts for Future Cosmological Observations Nov 29, 2011

Show notes

A generic prediction of string theory is the existence of many axion fields. It has recently been argued that many of these fields should be light and, like the well known QCD axion, lead to observable cosmological consequences. In this video, Marsh talks about in detail the effect of the so-called string axiverse on large scale structure, focusing on the morphology and evolution of density perturbations, anisotropies in the cosmic microwave background and weak gravitational lensing of distant galaxies.

Indication of nonzero theta_13 from T2K Nov 21, 2011

Show notes

Eric Zimmerman offers the experimental results from the T2K experiment on neutrino mixing.

Measuring Double Parton events at D0 Nov 15, 2011

Show notes

Dmitry Bandurin talks about the D0 measurement of a sample of photon+3jet events used to determine the fraction of events with double parton (DP) scattering at sqrt{s}=1.96 TeV.

Summary of Hidden SUSY Nov 09, 2011

Show notes

Albert De Roeck gives a summary of the Hidden SUSY workshop and the future outlook.