Conveners
Beyond Standard Model: Beyond Standard Model
- 昊 ZHANG (Institute of High Energy Physics, Chinese Academy of Sciences)
Beyond Standard Model: Beyond Standard Model
- Haijun Yang (Shanghai Jiao Tong University)
Dr
Da Xu
(IHEP, Beijing)
20/12/2018, 14:00
Beyond Standard Model
The institute of high energy physics (IHEP) plays a leading role in various SUSY searches: inclusive and electroweak SUSY searches with light leptons or taus. The talk gives an overview of SUSY search activities at IHEP, as well as the near-future plan and the long-term prospect.
Mr
Yang LIU
(IHEP)
20/12/2018, 14:15
Beyond Standard Model
As the major SUSY search group in China, we have participated in many kinds of SUSY scenario searches including inclusive and electroweakino (EWK) SUSY searches with leptons. This talk shows you the results we had during run2 for inclusive Same-Sign or three lepton (SS/3L) search, inclusive one lepton search, and EWK C1N2/C1C1 with two taus search.
Mr
Huajie Cheng
(高能所)
20/12/2018, 14:30
Beyond Standard Model
Several analyses searching for chargino and neutralino pair production in different decay final states are ongoing. These searches use 13 TeV datasets collected by the ATLAS and CMS. The results, strategies and outlook of these analyses will be presented.
ChenZheng Zhu
(S)
20/12/2018, 14:45
Beyond Standard Model
Supersymmetry (SUSY) is a promising extension of the SM of particle physics. If the chargino and neutralinos are to heavy to be produced, the direct slepton production will be dominant at LHC. Co-annihilation processes favour a light stau that has a small mass splitting with a bino LSP, which can provide a relic density similar current dark matter cosmological observations. This talk gives a...
Prof.
Fei Wang
(Department of Physics, ZhengZhou University)
20/12/2018, 15:00
Beyond Standard Model
Ling-Xiao Xu
(Peking University)
20/12/2018, 15:15
Beyond Standard Model
We build a minimal neutral naturalness model in which the top partners are not charged under QCD, with a pseudo Goldstone Higgs arising from SO(5)/SO(4) breaking. The color-neutral top partners generate the Higgs potential radiatively without quadratic divergence. The misalignment between the electroweak scale and global symmetry breaking scale is naturally obtained from suppression of the...
Prof.
Jing Shu
(ITP-CAS)
20/12/2018, 15:30
Beyond Standard Model
We present the most general sum rules reflecting the cancellation of ultraviolet divergences in the Higgs potential in weakly-coupled, natural extensions of the Standard Model. There is a separate sum rule for the cancellation of the quadratic and logarithmic divergences, and their forms depend on whether the divergences are canceled by same-spin or opposite-spin partners. These sum rules can...
ZHANG Yu
(IHEP)
20/12/2018, 15:45
Beyond Standard Model
Di-Higgs production is important for Higgs self-coupling measurement, BSM heavy Higgs search and search for anomalous coupling etc. WWyy has clean background and good mass resolution from diphoton final state and large branching ratio from WW.
A search for di-Higgs is performed on ATLAS detector with 36 $fb^{-1}$ dataset. The upper limit is set.
Dr
Shao-Feng Ge
(IPMU & UC Berkeley)
20/12/2018, 16:30
Beyond Standard Model
Gluon-gluon to photon-photon scattering gg→γγ offers to the LHC experiments a uniquely powerful probe of dimension-8 operators in the Standard Model Effective Field Theory (SMEFT) that are quadratic in both the electromagnetic and gluonic field-strength tensors, such as would appear in the Born-Infeld extension of the Standard Model (SM). We use 13-TeV ATLAS data on the production of isolated...
Asma Hadef
(University of Science and Technology of China)
20/12/2018, 16:45
Beyond Standard Model
Several models beyond the standard model (BSM) predict new resonances decaying into two photons. The diphoton final state has the advantage of a clean experimental signature with an excellent mass resolution and moderate background. Using this final state, the CMS Collaboration observed a small excess near 95 GeV with a local (global) significance of 2.8 (1.3) standard deviations when...
Bo Liu
(IHEP)
,
bo liu
(IHEP)
20/12/2018, 17:00
Beyond Standard Model
This talk will present a search for heavy resonance decaying to Z/W/H + an energetic photon using 36.1 fb$^{-1}$ pp collision data collected by the ATLAS detector. Only the hadronic decays of Z/W/H bosons are considered. This search explores the phase space where the boson decay products are close and form a fat jet. No obvious deviations are found with respect to the Standard Model...
Mr
Miaoran Lu
(USTC)
20/12/2018, 17:15
Beyond Standard Model
A search for a heavy resonance decaying into WZ in the fully leptonic channel (electrons and muons) is performed. It is based on proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 36.1 fb−1
. No significant excess is observed over the Standard Model predictions and...
Mr
Wenxing Fang
(Beihang University)
20/12/2018, 17:30
Beyond Standard Model
A search for new physics in top quark production is performed in proton-proton collisions
at 13 TeV. The data set corresponds to an integrated luminosity of 35.9 fb^-1,
and was collected in 2016 by the CMS detector. Events with two opposite-sign isolated
leptons (electrons or muons) and b quark jets in the final state are selected. The
search is sensitive to new physics in top quark pair...
Dr
Marc Bret Cano
(Shanghai Jiao Tong university)
20/12/2018, 17:45
Beyond Standard Model
A search is performed for a heavy particle decaying into different-flavor,
dilepton pairs ($e\mu$, $e\tau$ or $\mu\tau$), using 36.1$fb^{-1}$
of proton--proton collision data at $\sqrt{s}=13$~TeV collected in
2015--2016 by the ATLAS detector at the Large Hadron Collider. No excesses over
the Standard Model predictions are observed. Bayesian lower limits at the 95\%
credibility level are...
