Pheno & Vino Seminar, Marat Freytsis, "The B -> D(*) tau nu anomalies: facts and/or fictions"
Tue, Mar 8, 2016, 4:00 pm – 5:30 pm
The ratio of the measured B → D(*) l nu decay rates for tau and lighter leptons deviate from the Standard Model (SM) by about 4 standard deviation. I will discuss why the data is in tension with SM predictions, independent of complications in modeling exclusive decays, and complementary measurements that can be made to reduce associated theory…
Pheno & Vino Seminar, Yuhsin Tsai, U. of Maryland, Exotic Signals in The Twin Higgs Model
Tue, Mar 1, 2016, 4:00 pm – 5:30 pm
Twin Higgs (TH) model gives a naturalness motivation to study the non-SM colored BSM particles, which usually have decay processes relating to the dark-hadronization and displaced signal. In this talk, I will use two examples to discuss these two distinct phenomenology in both collider and astrophysical experiments. In the collider, the exotic…
Pheno & Vino Seminar, Jakub Scholtz, Harvard, "Flooded Dark Matter and core/cusp resolution with fermionic dark matter"
Tue, Feb 23, 2016, 4:00 pm – 5:30 pm
Most dark matter (DM) models set the DM relic density by some interaction with Standard Model particles. Such models generally assume the existence of Standard Model particles early on, with the DM relic density a later consequence of those interactions. Perhaps a more compelling assumption is that DM is not part of the Standard Model sector and…
Pheno & Vino Seminar, Raffaele D'Agnolo, IAS, "Light Dark Matter from Boltzmann Tails"
Tue, Feb 16, 2016, 4:00 pm – 5:30 pm
Dark matter can be a thermal relic exponentially lighter than the weak scale, without being exponentially weakly coupled. I will present two mechanisms that produce light dark matter with sizable self-interactions and couplings to the Standard Model.
Pheno & Vino Seminar, Yoni Kahn, Princeton, "A Broadband Approach to Axion Dark Matter Detection"
Tue, Feb 9, 2016, 10:30 am – 12:00 pm
When ultralight axion dark matter encounters a static magnetic field, it sources an effective electric current which follows the magnetic field lines and oscillates at the axion Compton frequency. I will describe a new experiment to detect this axion effective current which, unlike most existing proposals, does not rely on a resonant enhancement…
Pheno & Vino Seminar, Sam McDermott, Stony Brook, "Inflatable Dark Matter"
Tue, Feb 2, 2016, 4:00 pm – 5:30 pm
I will discuss the particle physics implications of a non-standard period of inflation. I will show how inflation may arise from a minimally tuned model, and I will investigate the ramifications for certain theoretically appealing theories of dark matter. I will conclude by pointing to some interesting open questions and model building…
Phenomenology Seminar - Gordan Krnjaic, Fermilab - “Discovering or Falsifying sub-GeV Thermal Dark Matter”
Thu, Nov 12, 2015, 1:30 pm – Wed, Nov 11, 2015, 2:30 pm
This talk analyzes the present status of sub-GeV thermal dark matter annihilating through Standard Model mixing. In these scenarios, the requirement that dark matter be a thermal relic sets a sharp sensitivity target for terrestrial experiments, and that one of the simplest and best-motivated interactions between the SM and light dark matter the…
Informal Phenomenology Seminar - IAS - Murayama, Kavli IPMU, Japan - “What's wrong with Goldstone?”
Wed, Oct 9, 2013, 1:30 pm – 2:30 pm
Spontaneous Symmetry Breaking is a very universal concept applicable for a wide range of subjects: crystal, superfluid, neutron stars, Higgs boson, magnets, and many others. Yet there is a variety in the spectrum of gapless excitations even when the symmetry breaking patterns are the same. We unified all known examples in a single-line Lagrangian…
Wed, Feb 23, 2011, 1:30 pm – 3:00 pm
Speaker: Michelangelo Mangano, CERN Title: The First Year of the LHC: What We Have Learned
Andrey Katz-UMD- "Jet substructure and the Search for Z' in Electroweak Boson Channels"
Thu, Dec 9, 2010, 2:00 pm – 3:00 pm
Abstract: "Strongly coupled models at the TeV scale often predict one or more Z' bosons which have appreciable branching ratios into EW bosons. These Z's are usually believed to have multi-TeV mass due to electroweak precision constraints, placing them on the edge of the LHC discovery reach. In my talk I will discuss the possibility of…
Daniele Spier Moreira Alves-"Comprehensive Reach for New Colored States in Early LHC Searches".
Thu, Nov 18, 2010, 2:00 pm – 3:00 pm
Dr. Surjeet Rajendran-Johns Hopkins-“ Observing the Dimensionality of Our Parent Vacuum
Thu, Oct 28, 2010, 2:00 pm – 3:00 pm
David Simmons-Duffin-Harvard-"Bounds on 4D Conformal and Superconformal Field Theories"
Thu, Oct 14, 2010, 2:00 pm – 3:00 pm
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