Conveners
Higgs and EWSB: Monday morning
- Tulika Bose (Boston University)
Higgs and EWSB: Monday afternoon
- Laura Reina (Florida State University)
Higgs and EWSB: Tuesday afternoon
- Laura Reina (Florida State University)
Higgs and EWSB: Wednesday afternoon
- Junjie Zhu (University of Michigan)
Higgs and EWSB: Joint with BSM, Thursday morning
- Tulika Bose (Boston University)
Higgs and EWSB: Thursday afternoon
- Junjie Zhu (University of Michigan)
Laura Reina
(Florida State University)
7/31/17, 10:45 AM
Higgs and EWSB
Presentation
The LHC Higgs-boson physics programme is broad and
challenging. The progress of experimental analyses has been matched
by an unprecedented theoretical effort to describe both production and
decay properties of the Standard-Model Higgs boson. In most cases the
measurement of Higgs production and properties is not limited these
days by theoretical systematic, but cases still exist where...
Zirui Wang
(Shanghai Jiao Tong Univ. / U.Michigan)
7/31/17, 11:15 AM
Higgs and EWSB
Presentation
The measurement of the production cross section of the Higgs boson in the diphoton decay channel is presented, using proton-proton collision data collected at √s=13 GeV by the ATLAS experiment 2015 and 2016. Diphoton candidate events from different production modes are analyzed by a simultaneous fit to the invariant mass spectrum.
Javier Duarte
(Fermilab)
7/31/17, 11:35 AM
Higgs and EWSB
Presentation
We present an inclusive search for the standard model Higgs boson produced with high transverse momentum decaying to a bottom-antibottom quark pair using a data set of pp collisions at 13 TeV collected with the CMS experiment at the LHC in 2016. The data sample corresponds to an integrated luminosity of 35.9 inverse femotbarns. High-transverse-momentum Higgs bosons are reconstructed in a...
Ms
Vallary Bhopatkar
(Florida institute of Technology)
7/31/17, 11:55 AM
Higgs and EWSB
Presentation
A search for standard model (SM) Higgs bosons decaying into pairs of tau leptons and then to two muons plus (anti)-neutrinos are presented. The analysis is performed using data collected by the CMS detector in 2016 with 35.9 $fb^{-1}$ of integrated luminosity. This channel has been studied in three event categories with different jet multiplicities focusing on Higgs boson signal events...
Aaron White
(University of Michigan)
7/31/17, 1:30 PM
Higgs and EWSB
Presentation
The Standard Model Higgs boson Yukawa coupling to dimuons offers an opportunity to study the Higgs interaction with second generation fermions. The Standard Model branching fraction of the Higgs decay to $\mu^+\mu^-$ is $2.2\times10^{−4}$, much smaller compared to the decays to the third generation lepton/quark pairs $\tau^+\tau^-$ and $b\bar{b}$, and the second generation quark pair...
Sergei Gleyzer
(University of Florida)
7/31/17, 1:50 PM
Higgs and EWSB
Presentation
A search for the standard model Higgs boson decaying into a muon pair is presented. The analysis is conducted with pp collisions data collected at 13 TeV with CMS at the LHC. Observed and expected limits of are placed on the standard model Higgs cross section times branching ratio at the 95% confidence level.
Hongtao Yang
(University of Wisconsin-Madison)
7/31/17, 2:10 PM
Higgs and EWSB
Presentation
After the Higgs boson was discovered at the LHC in 2012, it is of great importance to study how the Higgs boson interacts with Standard Model particles. In this presentation, I will report on the combined measurements of Higgs boson production and decay rates using LHC Run 2 proton-proton collision data collected at the center-of-mass energy of 13 TeV by the ATLAS detector in 2015 and 2016....
Eric Braaten
(Ohio State University)
7/31/17, 2:30 PM
Higgs and EWSB
Presentation
The transverse momentum distribution of the Higgs at large $P_T$ is complicated by its dependence on three important energy scales: $P_T$, the top quark mass $m_t$, and the Higgs mass $m_H$. A strategy for simplifying the calculation of the cross section at large $P_T$ is to calculate only the leading terms in its expansion in $m_t^2/P_T^2$ and/or $m_H^2/P_T^2$. The expansion of the cross...
Xing Wang
(University of Pittsburgh)
7/31/17, 2:50 PM
Higgs and EWSB
Presentation
We revisit the radiative decays of the Higgs boson to a fermion pair $h\rightarrow f\bar{f}\gamma$ where $f$ denotes a fermion in the Standard Model (SM). We include the chirality-flipping diagrams via the Yukawa couplings at the order $\mathcal{O}(y_f^2 \alpha)$, the chirality-conserving contributions via the top-quark loops of the order $\mathcal{O}(y_t^2 \alpha^3)$, and the electroweak...
Vincent Theeuwes
(SUNY, Buffalo)
8/1/17, 1:30 PM
Higgs and EWSB
Presentation
The $t\bar{t}H$ production process probes the top-Higgs Yukawa coupling directly which is especially sensitive to the underlying physics. The measurement of the $pp \to t\bar{t}H$ cross section is among the highest priorities of the current LHC physics program and improvement of the theoretical accuracy is of the central importance. In this talk the latest results for soft gluon resummation at...
Ken Bloom
(University of Nebraska-Lincoln)
8/1/17, 2:00 PM
Higgs and EWSB
Presentation
We present recent results from searches for the production of a Higgs boson in association with a single top quark (tHq), using data samples collected by the CMS detector in pp collisions at center-of-mass energy of 13 TeV, using data samples with integrated luminosity of up to 35.9 fb-1. The searches exploit a variety of top quark and Higgs boson decay modes resulting in final states with...
Mr
Harish Potti
(University of Texas at Austin)
8/1/17, 2:40 PM
Higgs and EWSB
Presentation
The search for Higgs boson production in association with two top quarks allows the direct measurement of Higgs boson- top quark Yukawa coupling. In this talk, results from the measurement of $t\bar{t}H$ production decaying into multilepton final states are presented. This search uses 36 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the center-of-mass energy of...
Mr
Evan Wolfe
(University of Virginia)
8/1/17, 3:00 PM
Higgs and EWSB
Presentation
The discovery of a Higgs particle made by the CMS and ATLAS experiments at the Large Hadron Collider in 2012 was heralded as a significant advancement in our understanding of the fundamental world. In the post-discovery era, the task turned to characterizing this Higgs boson: to determine whether it is the particle predicted within the context of the standard model (SM) of particle physics –...
Mr
Benjamin Tannenwald
(Ohio State University)
8/2/17, 1:30 PM
Higgs and EWSB
Presentation
This talk presents a search for Higgs boson pair production where one Higgs boson decays via $h\rightarrow bb$ and the other Higgs boson via $h\rightarrow WW^* \rightarrow \ell\nu qq$ (where $\ell$ is either an electron or a muon). The $bbWW^*$ final state is the second largest di-Higgs branching fraction after $hh\rightarrow bbbb$. This is the first search using the $bb\ell\nu qq$ final state...
Prof.
Nikolaos Kidonakis
(Kennesaw State University)
8/2/17, 1:50 PM
Higgs and EWSB
Presentation
I present theoretical results for charged Higgs production in association with a W boson via bottom quark annihilation at the LHC. I calculate higher-order radiative corrections from collinear and soft gluon emission and show that they are very significant. I present results for total cross sections as well as transverse-momentum and rapidity distributions of the charged Higgs boson for...
K.S. Babu
(Oklahoma State University)
8/2/17, 2:10 PM
Higgs and EWSB
Presentation
In the two Higgs doublet extension of the Standard Model, where both Higgs doublets couple to fermions, the production rates for $t \bar{t} h$ and Di-Higgs bosons can be significantly enhanced, consistent with flavor violation constraints and with the known properties of the 125 GeV Higgs boson h. Results of our study leading to this correlated enhancements will be presented. Signal strength...
Prof.
George W.S. Hou
(National Taiwan University)
8/2/17, 2:30 PM
Higgs and EWSB
Presentation
Existence of a second Higgs doublet is highly likely, but we should let Nature
decide on its couplings, and not impose extra discrete symmetry. Besides new
flavor changing neutral Higgs couplings, a new top Yukawa coupling of the heavy
neutral Higgs bosons H^0 and A^0 (denoting 125 GeV boson as h, the SM-like Higgs),
is naturally of order 1 in strength. It also naturally carries a new...
Ian Lewis
(University of Kansas)
8/3/17, 10:45 AM
Higgs and EWSB
Presentation
Precision measurements of the Standard Model are becoming increasingly important at the LHC. Of particular interest is double gauge boson production which are sensitive to the gauge structure of the Standard Model. We investigate W+W- production at the LHC considering all relevant dimension-6 operators and higher order Standard Model corrections. We determine the importance of the higher...
Mr
Xiangyang Ju
(University of Wisconsin-Madison)
8/3/17, 11:15 AM
Higgs and EWSB
Presentation
This talk presents a search for heavy resonances decaying into a pair of Z bosons which decay subsequently to \ell\ell\ell\ell and \ell\ell\nu\nu final states. The search uses proton-proton collision data at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 36 fb−1 collected with the ATLAS detector during 2015 and 2016. The maximum deviation from SM background is...
JANGBAE LEE
(Brown University)
8/3/17, 11:35 AM
Higgs and EWSB
Presentation
A charged Higgs boson is predicted by many beyond the Standard Model theories. Among those, the two-Higgs-doublet model (2HDM) extends the standard model with two Higgs doublets. Especially type II model of 2HDM predicts five Higgs bosons, negative/positive charged Higgs pair and three neutral bosons including light and heavy scalar Higgs bosons, and a pseudoscalar Higgs boson. In this talk we...
Mr
Atanu Pathak
(University of Louisville)
8/3/17, 1:30 PM
Higgs and EWSB
Presentation
A direct search for lepton flavour violation in decays of the Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the H→ℓτ channel, where the leading lepton can be either an electron or a muon and where the tau decays hadronically. The search is based on the data sample of proton–proton collisions collected by the ATLAS detector corresponding to an...
Jan Strube
(PNNL)
8/3/17, 1:50 PM
Higgs and EWSB
Presentation
The plan for the International Linear Collider is now being prepared as a staged design, with the first stage at 250 GeV and later stages achieving the full project specifications with 4 ab-1 at 500 GeV. This talk will present the capabilities for precision Higgs boson measurements at 250 GeV and their relation to the full ILC program. It will show that the 250 GeV stage of ILC will already...
Mr
Manqi RUAN
(Institute of High Energy Physics)
8/3/17, 2:20 PM
Higgs and EWSB
Presentation
The CEPC project is the next generation of large-scale collider. With a total circumference of 100 km and a center of mass energy from the Z pole to 240 GeV, CEPC is expected to deliver 1 Million Higgs boson and 10 Billion Z bosons in its electron-positron collision phase, and it could be upgraded to a proton collider whose energy reaches 100 TeV regime.
Such huge productivity makes...