Title: Reserved for HE PI discussions with Andy Albrecht regarding the DOE Committee of Visitors.
User:
High-Energy Seminars
Time:
5:10am - 6:10am
Send Reminder:
Yes - 0 days 4 hour 0 minutes before start
Description:
LHC Lunch
Informal lunch with occasional talks
Host: Markus Luty
Speaker:
Title:
Room: 432
Abstract:
User:
High-Energy Seminars
Time:
6:00am - 7:00am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
Joint Theory Seminar
Speaker: Filippo Sala
Title: Higgs boson implications for natural and unnatural theories
Host: John Terning
Room: 432
Abstract: I will discuss the Higgs boson fit impact on the CP-even scalar sector of a generic NMSSM, motivated by naturalness, and outline a possible overall strategy to search for signs of the new supersymmetric Higgses. Taking a different point of view, I will also discuss some implications of the Higgs boson measurement on the Standard Model, as a theory valid up to very high energy scales.
User:
High-Energy Seminars
Time:
9:10am - 10:00am
Send Reminder:
Yes - 1 day 6 hour 0 minutes before start
Description:
Speaker: Aleksandra Drozd
Host: Jack Gunion
Title: Two-component Dark Matter
User:
High-Energy Seminars
Time:
5:10am - 6:10am
Send Reminder:
Yes - 0 days 4 hour 0 minutes before start
Description:
LHC Lunch
Informal lunch with occasional talks
Host: Markus Luty
Speaker:
Title:
Room: 432
Abstract:
User:
High-Energy Seminars
Time:
9:00am - 9:50am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
Title: "Searching for new physics in high-mass ditau events at ATLAS"
Speaker: Ryan Reece, UCSC
host: Robin Erbacher
Abstract:
"The LHC has brought a new level of sensitivity to possible TeV-scale new physics. Tau leptons can have preferred couplings to possible new physics, including Z' bosons motivated by grand unified theories. Hadronic tau decays are one of the most difficult final states to identify at hadron colliders like the LHC, but ATLAS has multivariate
techniques for identifying hadronic tau decays using Boosted Decision Trees and sophisticated calibrations. Tau final states give complex multijet and electroweak background compositions that require data-driven techniques. Results will be presented from searches for Z'
bosons in high-mass ditau events at ATLAS."
User:
High-Energy Seminars
Time:
5:10am - 6:10am
Send Reminder:
Yes - 0 days 4 hour 0 minutes before start
Description:
LHC Lunch
Informal lunch with occasional talks
Host: Markus Luty
Speaker:
Title:
Room: 432
Abstract:
User:
High-Energy Seminars
Time:
6:00am - 7:00am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
Joint Theory Seminar
Speaker: Marco Farina
Title: Naturalness after the first run of the LHC
Host: Yuhsin Tsai
Room: 432
Abstract: The naturalness principle is under serious scrutiny after the discovery of a 126 SM-like Higgs boson and the lack of new physics signals at the LHC.
In this talk I will show how the measurement of the Higgs couplings can be used as a probe of naturalness and how deviations from SM behavior are in general inversely correlated with the amount of fine-tuning. I will give two examples of such correlation. First in the case of an extended scalar sector, I will study the large-lambda version of the Next-to-Minimal Supersymmetric Standard Model. Then, in a model independent approach, I will point out the generic correlation between naturalness and the size of top partner loop contributions to Higgs couplings to photons and gluons. Finally I will discuss a modification of the usual criterion for naturalness and its consequences.
User:
High-Energy Seminars
Time:
6:00am - 7:00am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
Joint Theory Seminar
Speaker: Mario Martone
Title: Dimensional reduction of S-Confining Dualities
Host: Yuhsin Tsai
Room: 432
Abstract: Recently Seiberg et al. presented a procedure to dimensionally reduce 4D dualities to 3D ones. Dimensional reduction furthers our understanding of SUSY dynamics in 3D by carrying over our intuition from 4D. In fact, dimensional reduction of 4D Seiberg dualities has already been used to conjecture new 3D dualities, involving interesting and new dynamics.
In this talk we will review the general procedure to dimensionally reduce 4D dualities to then discuss the phenomenon of s-confinment in three dimensions. We present preliminary results which show that non-perturbative corrections to the super-potential and the existence of a Coulomb branch in 3D introduce interesting unexpected dynamics.
User:
High-Energy Seminars
Time:
9:10am - 10:10am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
Speaker: Matthew Szydagis (UC Davis)
Host: Bob Svoboda
Title: Electron and Photon Generation in the Long Baseline Neutrino Experiment
Room:
Abstract:
The Long Baseline Neutrino Experiment (LBNE) will be a multifaceted 1300 km baseline neutrino beam experiment between Fermilab and SURF (Sanford Underground Research Facility). LBNE plans to study neutrino and anti-neutrino oscillations in detail, in the hopes of determining the nature of the neutrino mass hierarchy and measuring the CP violating phase. The broad physics program of LBNE will also include supernova neutrinos, atmospheric neutrinos, and proton decay. In this talk, I focus on new work performed on the subtleties of the underlying physics of the ionization and scintillation yields of the liquid argon which comprises the TPC (time projection chamber) to be deployed at SURF. I will discuss the dependence of these yields on the particle type, energy or dE/dx, and drift electric field magnitude in the context of the new NEST-based (Noble Element Simulation Technique) physics model, applicable to any noble element detector, and detail a simulated application, the discrimination of electrons and gammas in the detector.
User:
High-Energy Seminars
Time:
5:10am - 6:10am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
LHC Lunch
Informal lunch with occasional talks
Host: Markus Luty
Speaker: Jeffrey Hutchinson
Title: Effective WIMPs
Room: 432
Abstract: Null results from collider and direct detection searches constrain dark matter candidates. We analyze these constraints in the context of minimal extensions to the Standard Model (SM). These models contain a singlet dark matter particle with cubic couplings between SM particles and `partner' particles with the same gauge quantum numbers as the SM particle. We find that collider and direct detection searches are remarkably complementary for these models.
User:
High-Energy Seminars
Time:
6:00am - 7:00am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
Joint Theory Seminar
Speaker: Liam Fitzpatrick
Title: Wilsonian and Large N Approaches to Non-Fermi Liquids
Host: Markus Luty
Room: 432
Abstract: We study the problem of metals near a quantum critical point using a local Wilsonian effective field theory of Fermi surface fermions coupled to massless boson (i.e. order parameter) fields, and integrating out only high energy boson and fermion modes. Below the upper critical dimension of the theory (d=3 spatial dimensions), we find new fixed points in which the bosons are described by the Wilson-Fisher fixed point and are coupled to a non-Fermi liquid metal. We describe different behaviors of the theory in various large N limits.
User:
High-Energy Seminars
Time:
9:10am - 10:10am
Send Reminder:
Yes - 1 day 4 hour 0 minutes before start
Description:
Speaker: Jason Nielsen (UCSC)
Host: Robin Erbacher
Room:
Title: ATLAS Physics Prospects at a High-Luminosity LHC
Abstract: The physics accessible in the proposed high-luminosity phase of the Large Hadron Collider extends well beyond that of the early LHC program. Selected topics, spanning from Higgs boson coupling studies to new particle searches and rare top quark decays, have been re-evaluated with the performance expected after a series of detector upgrades. They illustrate the substantially enhanced physics reach with an increased integrated luminosity of 3000 fb-1, and they motivate the planned upgrades of the LHC machine and ATLAS detector.
User:
High-Energy Seminars
Time:
5:10am - 6:10am
Send Reminder:
Yes - 0 days 4 hour 0 minutes before start
Description:
LHC Lunch
Informal lunch with occasional talks
Host: Markus Luty
Speaker: Ennio Salvioni
Title: Very boosted Higgs in gluon fusion
Room: 432
Abstract: In a natural theory of electroweak symmetry breaking, the degrees of freedom that cure the hierarchy problem are expected to affect also the loop-induced couplings of the Higgs to gluons and photons. In the inclusive Higgs production rate measured so far at the LHC, the long-distance contribution of the top quark and the short-distance contribution of new physics cannot be disentangled. In this talk I will argue that the pp -> h + jet process at large pT can resolve this degeneracy, and thus provide another handle besides pp -> t tbar h. As concrete examples, I will discuss the cases of stops in supersymmetry and of top partners in composite Higgs models.
9:10am» HE seminar- PI discussion