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 questions of neutrino physics. Shape Dynamics. Henrique Gomes discusses new ways to build effective theories that are Poincare invariant but the symmetry is not manifest. Application of highly resistive material for particle detection. Multileptonic triggering and searches at CMS. Sho Maruyama reviews Supersymmetric particle and Standard Model Higgs boson searches in high energy physics.
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. A Composite Light Stop. 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.
No models for direct detection - a general analysis of DM experiments. Ami Katz discusses a general model independent analysis of DM experiments. 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. 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.
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.
- The Favored Queen: A Novel of Henry VIIIs Third Wife.
- Four reasons why the quantum vacuum may explain dark matter;
- Software Packages in "bionic".
Given that the dataset for these analyses will not improved dramatically, decisive confirmations will be required by the LHC experiments. 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. Csaba Csaki discusses how minimal flavor violation in supersymmetry can give a consistent phenomenology with resorting to R-party. 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. Eric Zimmerman offers the experimental results from the T2K experiment on neutrino mixing. Measuring Double Parton events at D0.
How the absence of supersymmetric signatures at the LHC do not yet conflict with naturalness. Scale Without Conformal Invariance. Fortin investigates the theoretical implications of scale without conformal invariance in quantum field theory, arguing that the RG flows of such theories correspond to recurrent behaviors, i. He also discusses the implications for the a-theorem and show how dilatation generators do generate dilatations. Finally, Fortin discusses well-behaved non-conformal scale-invariant examples.
Baumgart explores the relation between eternal inflation and de Sitter holography. I will present these latest results, each performed with 1. David Sanford discusses the direct detection of dark matter through its elastic scattering off nucleons as among the most promising methods for establishing the particle identity of dark matter.
Author EM McDowell
Recent SUSY results in multilepton final states. Rob Forrest describes recent SUSY searches at CDF, emphasizing direct searches for weakly produced Charginos and Neutralinos including many recent results using the dilepton and trilepton signatures. The results represent the final and most stringent limits placed on Chargino and Neutralino mass from CDF through the end of the life of the Tevatron. Jason Evans discuss the implications of the excesses in LHC Higgs boson searches on the gauge mediated supersymmetric standard model, for the mass range GeV.
A relatively heavy lightest Higgs boson mass in this range can be reconciled with light SUSY particles, if there are additional fields which couple directly to the Higgs boson. The mass of this extra matter can be predicted rather precisely in gauge mediation for a given Higgs boson and gluino mass.
Yang Bai argues that dark matter particles that have strong interactions with the Standard Model particles are not excluded by current astrophysical constraints. These dark matter particles have unique signatures at colliders; instead of missing energy, the dark matter particles produce jets. We propose a new search strategy for such strongly interacting particles by looking for a signal of two trackless jets. We show that suitable cuts can plausibly allow us to find these signals at the LHC even in early data.
Conformal Symmetry in the Bulk. We show that bulk geometry can also be described in terms of conformal geometry. This description yields a solution generating algebra in the bulk that controls solutions to very general bulk boundary problems. Using this algebra we present a boundary conformal calculus for conformally compact manifolds. Higgs and Jet Color-Connections.
Jason Gallicchio discusses a new class of observables that aims to characterize the superstructure of an event, that is, features such as color flow, which are not determined by the jet four-momenta alone. Stealth Supersymmetry. Jiji Fan discusses a broad class of supersymmetric models that preserve R-parity but lack missing energy signatures. The simplest scenario has low-scale SUSY breaking, with missing energy only from soft gravitinos. Generating a little hierarchy with accidental SUSY. An emergent or accidental supersymmetry is used to address the little hierarchy problem in Randall-Sundrum models by naturally generating a hierarchy between the IR scale and the electroweak scale.
Supersymmetry is broken on the UV brane which triggers the stabilization of the warped extra dimension at an IR scale of order 10 TeV. This causes the first two sparticle generations to decouple, thereby avoiding the supersymmetric flavour and CP problems, while an accidental R-symmetry protects the gaugino mass. The resulting low-energy sparticle spectrum consists of stops, gauginos and Higgsinos which are sufficient to stabilize the little hierarchy between the IR scale and the electroweak scale.
Introducing a singlet Higgs field on the IR brane, ameliorates the supersymmetric little hierarchy problem, and allows Higgs masses up to GeV. We present a study of the invariant mass distribution of jet pairs produced in association with a W boson using data collected with the CDF detector which correspond to an integrated luminosity of 4. The observed distribution has an excess in the GeV mass range which is not described by current theoretical predictions within the statistical and systematic uncertainties.
In particular we will discuss the properties and the significance of this excess. Constructing a Dynamics for Causal Sets. In the causal set approach to quantum gravity the spacetime continuum arises as an approximation to a fundamentally discrete substructure, the causal set, which is a locally finite partially ordered set.
The causal set paradigm was elucidated in a classic paper by Bombelli, Lee, Meyer and Sorkin in While early kinematical results already showed promise, the program received a substantial impetus about a decade ago with the work of Rideout and Sorkin on a classical stochastic growth dynamics for causal sets. Considerable progress has been made ever since in our understanding of causal set theory while leaving undisturbed the basic paradigm.
Recent highlights include a causal set expression for the Einstein-Hilbert action and the construction of a scalar field Feynman propagator on a fixed causal set. Duality and Holography.
Tag: Dark Energy
Joe Polchinski discusses the idea that physics must be holographic and that the fundamental variables are nonlocal and locality is emergent; this is a complete change from previous experience, and we have much to understand. Hal Haggard presents on computing the Bohr-Sommerfeld volume spectrum of a tetrahedron and showing that it reproduces the quantization of a grain of space found in loop gravity.
Physical Predictions and the Quantum Multiverse. Yasunori Nomura presents a framework in which well-defined predictions are obtained in an eternally inflating multiverse, based on the principles of quantum mechanics. Guido D'Amico presents the consequences of imposing an approximate Galilean symmetry on the Effective Theory of Inflation, the theory of small perturbations around the inflationary background. Zacharia Chacko discusses the spectrum of gamma ray signals that arise from dark matter annihilation in the universe. Vikram Rentala proposes a new model-independent method for spin measurements which takes advantage of quantum interference among helicity states.
Deformations, Bions, and De confinement. Recasting SUSY. The Topologies Approach. Recent Results from CMS. Atomic Dark Matter. Keith Rehermann proposes that dark matter is dominantly comprised of atomic bound states. Observing the Dimensionality of Our Parent Vacuum. Surjeet Rajendran gives a talk at the Bubbles in the Sky workshop. Takahiro Tanaka gives a talk at Bubbles in the Sky workshop.
Jesse Thaler describes a new jet shape, N-subjettiness, designed to tag boosted hadronically-decaying objects and reject the background of QCD jets with large invariant mass. Predictions from a Tevatron Anomaly.