Dr
William Shepherd
(Johannes-Gutenberg-University Mainz)
20/06/2017, 11:20
Electroweak Interactions Working Group
Working Group Sessions
I give an update on the current status of research aiming to treat new physics searches at the LHC and other experiments using the techniques of effective field theory. This has been employed in many contexts, from fitting EW precision data and Higgs data to investigating higher-energy phenomena in dijet, dilepton, and diboson searches. I review the technical challenges arising in both types...
Jeffrey Roskes
(Johns Hopkins University)
20/06/2017, 11:50
Electroweak Interactions Working Group
Working Group Sessions
The study of the anomalous interactions of the recently discovered Higgs boson is performed using the decay information H → 4l and information from associated production of two quark jets, originating either from vector boson fusion or an associated vector boson. The full dataset recorded by the CMS experiment during 2016 of the LHC Run 2 is used, corresponding to an integrated luminosity of...
Dr
Arindam Das
(KIAS, KNRC, SNU)
20/06/2017, 12:20
Electroweak Interactions Working Group
Working Group Sessions
We use the LHC Higgs data to derive updated constraints on electroweak-scale sterile neutrinos that naturally occur in many low-scale seesaw extensions of the Standard Model to explain the neutrino masses. We also analyze the signal sensitivity for a new final state involving a single charged lepton and two jets with missing energy, which arises from the decay of sterile neutrinos produced...
Tobias Neumann
(University at Buffalo)
20/06/2017, 14:30
Electroweak Interactions Working Group
Working Group Sessions
I will give an overview of the current status of QCD corrections for diboson production processes. My focus lies on LHC phenomenology and recent developments in the parton level Monte Carlo code MCFM. Furthermore I will discuss the implications for searches of new physics and compare MCFM to other codes.
Dr
Marat Freytsis
(University of Oregon)
20/06/2017, 15:00
Electroweak Interactions Working Group
Working Group Sessions
Motivated by the restoration of electroweak gauge symmetry at high energy, I will discuss the use of diboson differential cross sections as high-precision observables at the LHC. I will argue that certain combined measurements of processes can be both predicted and measured to better than 5%. In certain cases, enhanced sensitivity to higher-order and electroweak corrections, along with small...
Mr
Daneng Yang
(Peking University)
20/06/2017, 15:30
Electroweak Interactions Working Group
Working Group Sessions
The talk will present the latest measurements by CMS experiment of di-boson and tri-boson production, and measurements of di-boson production with jets including vector boson scattering.
Ms
Hannah Herde
(Brandeis University)
20/06/2017, 16:30
Electroweak Interactions Working Group
Working Group Sessions
Detailed measurements of the properties of the 125 GeV Higgs boson are fundamental for the understanding of the electroweak symmetry breaking mechanism. Measurements of the Higgs boson allow to study the gauge, loop induced and Yukawa couplings of the Higgs boson both in production and decay modes. This talk summarizes recent ATLAS measurements of the 125 GeV Higgs boson.
Francesco Fabozzi
(INFN-Napoli)
20/06/2017, 17:00
Electroweak Interactions Working Group
Working Group Sessions
Recent results on Higgs boson production from the CMS experiment are reviewed. The measurements, exploiting a variety of different production and decay channels, are based on LHC pp collision data collected by the CMS experiment at a center of mass energy of 13 TeV.
Prof.
Stephen Sekula
(Southern Methodist University)
20/06/2017, 17:30
Electroweak Interactions Working Group
Working Group Sessions
An overview of the measurements of the Higgs boson mass and its spin and CP properties at ATLAS will be described.
Dr
roberto rossin
(Univesity of Padova - INFN)
20/06/2017, 18:00
Electroweak Interactions Working Group
Working Group Sessions
After five years from its discovery, the 125 GeV Higgs boson is a well-established particle that seems to fit beautifully inside the Standard Model of particle physics. In some decay channels predicted by the standard model of particle physics, other predictions by the same model still need confirmation.
Since 2015, the LHC increased energy has been providing more data that is being used to...
Prof.
Nikolaos Kidonakis
(Kennesaw State University)
21/06/2017, 11:30
Electroweak Interactions Working Group
Working Group Sessions
I present results for charged Higgs production in association with a W boson or a top quark at LHC energies. I calculate higher-order threshold corrections and present results for total cross sections as well as transverse-momentum and rapidity distributions of the Higgs boson.
Dr
Pierluigi Bortignon
(Univeristy of Florida)
21/06/2017, 12:00
Electroweak Interactions Working Group
Working Group Sessions
This talk presents an overview of the status of the CMS public results in the context of searches for new Physics through the Higgs sector. It will cover recently published charged Higgs searches, dark matter production in association with Higgs boson, SUSY searches having Higgs boson in the final state, and searches for top partners predicted by composite Higgs models. The dataset used for...
Prof.
Dhiman Chakraborty
(Northern Illinois University)
21/06/2017, 12:30
Electroweak Interactions Working Group
Working Group Sessions
Some theories predict the production of the Higgs boson in association with DM particles, while other theories predict either enhanced decay rates into rare modes like Phi-photon or decays not present in the Standard Model like decays into light pseudoscalar bosons "a" or decays into invisible particles.
This talk summarizes ATLAS searches for such rare or non-standard production or decay...
Michael Krohn
(University of Colorado Boulder)
21/06/2017, 14:30
Electroweak Interactions Working Group
Working Group Sessions
A summary of searches for pairs of standard model Higgs bosons with the CMS detector at a center of mass energy of 13 TeV. These searches cover both resonant and non-resonant production over a wide variety of final states and employ new techniques that improve them over previous searches done at lower center of mass energies. The non-resonant results set limits on the Standard Model production...
Dr
Tulin Varol
(Southern Methodist University)
21/06/2017, 15:00
Electroweak Interactions Working Group
Working Group Sessions
The Higgs physics prospects at the high-luminosity LHC are presented,
assuming an energy of sqrt(s) = 14 TeV and a data sample of 3000-4000 fb-1.
In particular, the ultimate precision attainable on the couplings measurements of the 125 GeV Higgs boson with SM fermions and bosons is discussed, as well as perspectives on the search for the Standard Model di-Higgs production, which could...
Petar Maksimovic
(Johns Hopkins University)
21/06/2017, 15:30
Electroweak Interactions Working Group
Working Group Sessions
Phase-I and Phase-II upgrades of the CMS detector are described. Future prospects of electroweak and Higgs measurements are also presented.
Ahmed Ismail
(University of Pittsburgh)
21/06/2017, 16:30
Electroweak Interactions Working Group
Working Group Sessions
New electroweak states appear in many BSM theories but are difficult to discover at hadron colliders. When the lightest member of an electroweak multiplet is neutral and all of its components are approximately degenerate, production of the charged components is followed by nearly invisible decays. If these decays occur promptly, the only way to observe them is through MET-based signatures. I...
Mr
Ruo yu Shang
(University of Illinois, Urbana Champaign)
21/06/2017, 17:00
Electroweak Interactions Working Group
Working Group Sessions
Abstract: Many supersymmetry models feature gauginos and also sleptons with masses less than a few hundred GeV. These can give rise to direct pair production rates at the LHC that can be observed in the data sample recorded by the ATLAS detector. R-parity violation introduces many viable signatures to the search for supersymmetry at the LHC. Supersymmetric particles may decay into many leptons...
Dr
Vakhtang Tsiskaridze
(Freiburg University)
21/06/2017, 17:30
Electroweak Interactions Working Group
Working Group Sessions
Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions.
This talk summarises recent ATLAS results on searches for supersymmetric squarks and gluinos, including third generation squarks produced directly or via decay of gluinos. The searches involve final states containing jets (possibly identified as...
Ms
Elke Aeikens
(University Vienna)
21/06/2017, 18:00
Electroweak Interactions Working Group
Working Group Sessions
Extensions of the Standard Model with right-handed neutrinos $\nu_R$
in the framework of the seesaw mechanism are popular to explain the smallness of the neutrino masses.
In our model, we add a second Higgs double and in order to avoid
lepton flavour-changing neutral-scalar interactions at tree level, we allow lepton flavour violation solely in the non-flavour-diagonal Majorana mass matrix...