Hongtao Yang
(Unversity of Wisconsin-Madison)
15/08/2013, 08:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
The diphoton decay mode was the most sensitive mode for the discovery of the Higgs-like resonance in 2012. This mode remains very important in the post-discovery era, being sensitive to the existence of new physics. In this talk, I summarize the observation of the resonance in the diphoton channel by the ATLAS experiment using the full Run I dataset. I also describe the measurement of signal...
Mr
Andrew Hard
(University of Wisconsin-Madison)
15/08/2013, 08:50
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
The high resolution of the diphoton decay mode for the Higgs-like resonance discovered in 2012 provides a useful tool for probing the properties of the new boson. I summarize the observation by the ATLAS experiment of the resonance in the Run 1 dataset, and present measurements of the spin. The compatibility of the observations with the standard model will be discussed.
Mr
James Saxon
(University of Pennsylvania)
15/08/2013, 09:10
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
Recent results on coupling measurements in the bosonic decay modes have confirmed the Higgs-like properties of the particle discovered in 2012 by the ATLAS and CMS collaborations. Angular correlations of the Higgs decay products or its boost will give further insight into the underlying kinematic properties of the signal production and decay. With the accumulated integrated luminosity of 20/fb...
Mr
Adish Vartak
(University of California San Diego)
15/08/2013, 09:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
CMS results on the search for the Standard Model Higgs boson in the ZZ channel, where the Z bosons decay into two charged leptons each using the full dataset recorded at the LHC from pp collisions at center of masss energies of 7 and 8 TeV, will be presented. The measured Higgs boson properties, such as the mass, decay rate and spin-parity will be discussed.
Dr
Arjun Menon
(U. Oregon)
15/08/2013, 10:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
In a variety of well motivated models, such as two Higgs Doublet Models (2HDMs) and supersymmetric extensions of the Standard Model (SSM), there are additional neutral Higgs bosons. The $\tau \tau$ channel is the preferred mode for discovering such scalars at the LHC. However many of these models can have a suppressed $\tau \tau$ coupling and hence alternative discovery modes are required. In...
Aysen Tatarinov
(Texas A&M University)
15/08/2013, 11:00
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
Direct searches for non-SM decays of a Higgs boson provide an alternative and possibly faster path to understanding the nature of newly discovered Higgs-like particle by either confirming or restricting a wide range of scenarios beyond the SM. We present a search for non-SM Higgs boson decays to a pair of new light bosons, each of which subsequently decays into a collimated pair of muons. The...
Christopher Potter
(University of Oregon)
15/08/2013, 11:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
The status of ATLAS searches for Higgs bosons in extensions of the Standard Model is presented. The results cover in particular searches for the Higgs bosons of the Two Higgs Doublet Model (2HDM), the Minimal Supersymmetric Model (MSSM) and the Next to Minimal Supersymmetric Model (NMSSM). A review of the phenomenology of the Higgs sectors of these models will be given together with...
Dr
Tim Cohen
(SLAC)
15/08/2013, 13:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
We explore the connection between the strength of the electroweak phase transition and the properties of the Higgs boson. Our interest is in regions of parameter space that can realize electroweak baryogenesis. We do so in a simplified framework in which a single Higgs field couples to new scalar fields charged under SU(3)_c by way of the Higgs portal. Such new scalars can make the electroweak...
Lailin Xu
(University of Michigan)
15/08/2013, 14:00
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
Various extensions of Standard Model predict possible decays to
invisible particles of the Higgs boson recently discovered at the
Large Hadron Collider. This presentation will report results of a
direct search for invisible decays of Standard Model-like Higgs boson
which is produced in association with a Z boson, using the 4.7 fb-1 of
data at sqrt(s) = 7TeV and 20.3fb-1 of data at sqrt(S)...
Mr
Rocky So
(University of British Columbia)
15/08/2013, 14:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
Searches for low mass CP-odd Higgs boson (A0) predicted in non-minimal
supersymmetric extensions of the Standard Model, have been performed at
BaBar by studying the radiative decays of the Y(nS) resonances, with n=1,2,3.
Stringent limits on the production of a light Higgs boson have been set.
Dr
Alfredo Castaneda
(Texas A&M University (CMS))
15/08/2013, 15:00
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
We present most recent results from CMS on searches for Higgs-like particles in models beyond the Standard Model. Several rare and exotic decay modes of the Higgs boson are explored. The results of the searches are relevant for establishing whether the 125 GeV particle observed in Higgs boson searches at the LHC has the properties expected for a standard model Higgs boson.
Matthew Chasco
(Northeastern University)
15/08/2013, 16:00
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
This talk presents the CMS results on the search for a Higgs signal that decays to undetected particles. The particular signal of interest is a Z boson, decaying into charged leptons, produced in conjunction with an invisibly decaying Higgs boson. This search utilizes techniques of the measurement of the ZZ production cross section, where one Z decays into neutrinos and the other into charged...
Mr
Michael Mooney
(Princeton University)
15/08/2013, 16:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
A search for the Higgs boson produced in association with a W or Z boson and decaying to bottom quarks is presented. A sample of approximately 24/fb of data recorded by the CMS experiment at the Large Hadron Collider, operating at center-of-mass energies of 7 TeV and 8 TeV in 2011 and 2012, respectively, is used to search for events consistent with the signature of two b-jets recoiling with...
Dr
Nicolas Morange
(University of Iowa)
15/08/2013, 16:55
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
Updated results are shown in the search for the Higgs decay into b-bbar where the Higgs boson is produced in association with a vector boson (W/Z). The search is performed using the complete 2011 and 2012 datasets collected by the ATLAS detector at the LHC. The analysis is done in three different lepton multiplicities (0, 1, and 2 leptons), corresponding to the decays of ZH (Z --> nu + nu), WH...
Yao Ming
(University of Wisconsin-Madison)
15/08/2013, 17:15
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
A search for the Standard Model Higgs boson produced in association with a W or Z boson and decaying to $b\bar{b}$ using the ATLAS detector at the LHC is performed. The search uses 4.7 $fb^{-1}$ of data at $\sqrt{s}$ = 7 TeV and 21 $fb^{-1}$ at $\sqrt{s}$ = 8 TeV. The analysis uses events containing zero, one and two leptons. This talk will focus on the one lepton channel, which targets WH to...
Mr
Alexander Naip Tuna
(University of Pennsylvania)
16/08/2013, 10:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
Measurements involving the newly discovered boson with a mass of approximately 125 GeV have all been consistent with the Standard Model Higgs boson hypothesis. If this particle is indeed the Standard Model Higgs boson, then it should interact with fermions via Yukawa couplings. The investigation of whether this boson couples to fermions (and in particular leptons) is a fundamental test of this...
Fuquan Wang
(University of Wisconsin Madison)
16/08/2013, 11:00
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
The H->Zgamma decay mode is a key to understanding any deviation in signal strength from Standard Model expectation in the H->diphoton decay mode. I summarize the selection, background estimation, statistical treatment and results of search for Standard Model Higgs boson in the channel H->Zgamma, Z->l+l-, where l = e or mu, using the 4.6 fb-1 of proton-proton collisions at sqrt(s)=7TeV and...
Dr
Patrick Draper
(UC Santa Cruz, SCIPP)
16/08/2013, 11:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
I will survey some of the theoretical implications of a Higgs boson with the observed mass and couplings, focusing on the Standard Model, supersymmetry, and two-Higgs doublet models.
Mr
Jae Hyeok Yoo
(UC San Diego)
16/08/2013, 14:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
The evidence for a new particle decaying to W+W- in the fully leptonic final state in a standard model Higgs boson search is observed. The analysis is performed using 4.9 fb-1 and 19.5 fb-1 of data at the center-of-mass energy 7 TeV and 8 TeV, respectively, collected by CMS detector. The W+W- candidates are selected in the events with two energetic leptons of opposite charges and large missing...
Mr
Doug Schaefer
(University of Pennsylvania)
16/08/2013, 15:00
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
In the summer of 2012, the ATLAS and CMS collaborations announced a
discovery of the Standard-Model-like (SM) Higgs boson. Experimental
focus has now shifted to precision measurements of properties of the
new particle, such as couplings and spin. The SM Higgs boson is
primarily produced via gluon fusion (GGF) and vector boson fusion
(VBF) processes. This contribution will summarize latest...
Mr
Benjamin Cerio
(Duke)
16/08/2013, 15:20
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
With the discovery of the Standard-Model-like Higgs boson in the
summer of 2012, experimental focus has shifted to the measurement of
its properties. Higgs boson production via a vector boson fusion
(VBF) process is a direct consequence of the Higgs mechanism of
electroweak symmetry breaking. This process is directly sensitive to
the coupling of the Higgs boson to the weak vector gauge...
Dr
Lashkar Kashif
(University of Wisconsin-Madison)
16/08/2013, 15:40
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
The characterization of the new boson, discovered in the search for the SM Higgs boson, is currently a priority in high-energy physics. Determination of the J^P quantum numbers of the boson are vital to this end. In the ATLAS collaboration, analyses to discriminate between the J^P = 0+ vs 1+, 1- and 2+ states have been performed in the H->WW->lvlv channel using 21 fb-1 of data at a CM energy...
Savanna Shaw
(Michigan State University)
16/08/2013, 16:00
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
We report the latest results from Higgs Boson studies at the D0 detector. We will place particular emphasis on measurements of Higgs properties, particularly spin and parity studies in bbbar final states, but also including cross sections and branching fractions in a wide range of possible Higgs production and decay modes.
Mr
haoshuang ji
(University of Wisconsin-Madison)
16/08/2013, 16:30
Electroweak Symmetry Breaking and the Higgs Sector
oral presentation
I present measurements of the properties of the newly discovered
boson using the full Run I pp collision dataset recorded
by the ATLAS experiment. The properties include the mass, signal strengths
and couplings of the boson as well as its spin/CP states.
I will discuss the details about the statistical combination of these property measurements from various decay channels and
present the...
