Episodes
Roni Harnik reviews the theory of dark matter detection at the LHC.
Published 04/12/12
Yu-Hsin Tsai reviews dark matter to Higgs coupling constraints from LEP.
Published 04/12/12
Sergey Dubovsky discusses the effective field theory of long relativistic strings such as confining flux tubes in QCD. We derive the Polchinski-Strominger interaction by a calculation in static gauge. This interaction implies that a non-critical string which initially oscillates in one direction gets excited in orthogonal directions as well. In static gauge no additional term in the effective action is needed to obtain this effect. It results from a one-loop calculation using the Nambu-Goto...
Published 03/13/12
Yuri Shirman describes a simple recipe for obtaining local supersymmetry-breaking vacua in s-confining theories coupled to gauge singlets. This recipe gives rise to effective O'Raifeartaigh models in the IR, with calculable supersymmetry-breaking minima near the origin and can be applied to both vector-like and chiral theories. Since the properties of the vacuum are largely determined by superpotential terms that are non-renormalizable in the UV, it is calculable even when all dimensionless...
Published 03/05/12
Matt Wettstein gives a brief overview of the Large Area Picosecond Photodetector (LAPPD) project, an effort to develop compact, microchannel plate (MCP) photomultiplier tubes capable of sub-millimeter, sub nanosecond spatial resolutions and with potential for scalability to large experiments. Wettstein will also discuss steps taken towards the construction of experimental LAPPD-based neutrino detectors and the potential applications for such detector systems in answering the important...
Published 02/28/12
Henrique Gomes discusses new ways to build effective theories that are Poincare invariant but the symmetry is not manifest.
Published 02/27/12
Sung Park discusses the development of Resistive Plate Chamber (RPC), multi-gap RPC and Resistive Micropattern Detectors, in particle physics.
Published 02/21/12
Sho Maruyama reviews Supersymmetric particle and Standard Model Higgs boson searches in high energy physics. Maruyama continues on to describe how trigger and Data Quality Monitoring system are used at the Compact Muon Solenoid experiment at CERN. The trend in trigger menu development will be discussed in detail. One of main focuses of this talk is the work that can be done by graduate students.
Published 02/14/12
John Terning discusses how a SUSY model of a composite top-Higgs sector can resolved the four hierarchy problems: the gauge hierarchy, the yukawa hierarchy, the little hierarchy, and the squark mass hierarchy.
Published 02/13/12
Inspired by models designed to explain the top-quark foward-backward asymmetry, Daniel Whiteson discusses studies of unexplored experimental signatures inside WWbb+jet events, which mimic the top quark signature and may be hiding inside the top quark sample. Whiteson presents the first search for top+jet resonances, the first search to use boosted hadronic W bosons, new same-sign top quark limits, new heavy quark limits, and discuss ttbar+jet resonances, as well as the possibility that Higgs...
Published 02/07/12
Ami Katz discusses a general model independent analysis of DM experiments.
Published 02/06/12
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.
Published 01/31/12
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...
Published 01/30/12
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...
Published 01/30/12
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...
Published 01/17/12
Csaba Csaki discusses how minimal flavor violation in supersymmetry can give a consistent phenomenology with resorting to R-party.
Published 12/05/11
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...
Published 11/29/11
Eric Zimmerman offers the experimental results from the T2K experiment on neutrino mixing.
Published 11/21/11
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.
Published 11/15/11
This video offers an alternative scheme to allow R-parity violation with phenomenological disasters.
Published 11/09/11
Ben Heidenreich discusses constraining R-parity violation with minimal flavor violation.
Published 11/09/11
Matt Reece talks about near degeneracy of superpartners enforced by the couplings of a new sector to supersymmetry breaking.
Published 11/09/11
Albert De Roeck gives a summary of the Hidden SUSY workshop and the future outlook.
Published 11/09/11
Stuart gives the status of searches for supersymmetry (SUSY) at the LHC.
Published 11/08/11
Gordon Watts gives the status and prospects for supersymmetry searches with the ATLAS detector.
Published 11/08/11