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27-31 August 2021
南京大学(鼓楼校区)线上会议 Nanjing University (Gulou Campus) at ZOOM
Asia/Shanghai timezone
Home > Contribution List

Contribution List

Displaying 66 contributions out of 66
Session: BSM Higgs sector
I will present a simple extension of the Standard model to explain the origin of inflation, baryon asymmetry and neutrino masses at the same time.
Presented by Chengcheng HAN on 30 Aug 2021 at 3:30 PM
I will discuss nonfactorizable QCD corrections from central jet veto to Higgs boson production at the Large Hadron Collider. At hadron colliders, phase factors in the scattering amplitudes lead to double-logarithmic corrections starting at four-loop order. I will introduce our recent work on the first all-order structure of these “super-leading” logarithms. Our analysis shows that in certain ... More
Presented by Prof. Dingyu SHAO on 28 Aug 2021 at 4:10 PM
Session: BSM Higgs sector
Presented by Prof. Qing-Hong CAO on 30 Aug 2021 at 9:00 AM
Session: BSM Higgs sector
Presented by Dr. Nicola ORLANDO on 30 Aug 2021 at 4:10 PM
Presented by Bruce MELLADO on 29 Aug 2021 at 3:50 PM
Session: BSM Higgs sector
Highly Lorentz-boosted scalar particles (Higgs or Radion) decaying to bb or WW->4q can be reconstructed as single large-radius jets, and identified using jet substructure and deep neural networks. The techniques can be exploited for both the SM Higgs measurement and New Physics Searches. Two recent applications at the CMS experiments will be covered in this talk, including, 1) a search for standar ... More
Presented by Prof. Qiang LI on 30 Aug 2021 at 11:50 AM
Session: BSM Higgs sector
Presented by Dr. 雷(Lei) 张(ZHANG) on 30 Aug 2021 at 4:35 PM
A combination of measurements of Higgs boson production cross sections and branching fractions is presented. The combination is based on the analyses of the Higgs boson decay modes H->yy, ZZ*, WW*, tautau, bb, mumu, and searches for decays into invisible final states. Up to 139 fb-1 of pp collision data collected at sqrt(s)=13 TeV with the ATLAS detector are used. Combined cross section measuremen ... More
Presented by Kunlin RAN on 28 Aug 2021 at 3:10 PM
Presented by Mr. Chengfeng CAI on 29 Aug 2021 at 9:00 AM
We derive an effective equation-of-motion for an expanding bubble wall in the thermal plasma with a general form of the thermal friction. The efficiency factor for gravitational waves productions from colliding bubble walls is obtained with a special interest for the strong first-order phase transition. Primary authors Prof. Rong-Gen Cai (ITP-CAS), Shao-Jiang Wang
Presented by Mr. Shao-Jiang WANG on 29 Aug 2021 at 10:20 AM
Session: Pre-School
Presented by Prof. Yanwen LIU on 27 Aug 2021 at 3:30 PM
Session: Pre-School
Presented by 宁 陈 on 27 Aug 2021 at 1:00 PM
Since the discovery of a scalar particle with mass at 125 GeV in the experiments ATLAS and CMS at LHC, different measurements based on its properties have been performed and the observations nicely correspond to the Higgs boson predicted by the Standard Model of particle physics. Among these measurements, the fiducial and differential cross-section play an important role in the test of the SM pred ... More
Presented by Fábio ALVES on 28 Aug 2021 at 2:50 PM
Session: BSM Higgs sector
Presented by Lailin XU on 30 Aug 2021 at 10:00 AM
Session: BSM Higgs sector
Presented by Xiaoping WANG, Xiaoping WANG
Session: BSM Higgs sector
Null results from searches for new physics at the Large Hadron Collider (LHC) enforce the belief that new particles must be much heavier than the weak scale. We undertake a systematic study of the interplay between Higgs alignment and CP-violation in complex two-Higgs-doublet models (C2HDMs), which enables us to construct a CP-violating scenario where new Higgs bosons are close to the weak scale a ... More
Presented by Prof. Xiaoping WANG on 30 Aug 2021 at 3:50 PM
Presented by Liantao WANG on 28 Aug 2021 at 9:10 AM
Session: BSM Higgs sector
Presented by Prof. Jin Min YANG on 30 Aug 2021 at 9:30 AM
Presented by Prof. Jing SHU, Huaike GUO on 29 Aug 2021 at 9:30 AM
Session: Pre-School
Presented by Prof. 召丰 康 on 27 Aug 2021 at 9:20 AM
Session: BSM Higgs sector
In contrast to the standard model particles, long-lived particles(LLPs) decay with a significant distance from the primary vertex. We present a novel LLPs search strategy based on machine learning (ML) and image recognition techniques utilizing detector information from future lepton colliders.
Presented by Mr. Yulei ZHANG on 30 Aug 2021 at 2:30 PM
Presented by 洪洮 杨 on 28 Aug 2021 at 11:20 AM
The most recent results for the cross-section measurements of the Higgs boson decaying into tau leptons at the ATLAS experiment will be presented. These results are setting the base for other searches in the Higgs boson sector in the tau final state aiming to look for physics beyond the Standard Model. The analysis is performed using the 139 ifb dataset recorded by the ATLAS experiment at LHC in t ... More
Presented by Antonio DE MARIA on 28 Aug 2021 at 3:50 PM
Testing the couplings of the Higgs boson to quarks is important to understand the origin of quark masses. The next most promising candidate is the decay to a pair of charm quark and antiquark. The presentation will focus on the analysis of the associated production of the Higgs boson with a W or Z boson performed by the ATLAS Collaboration using data collected between 2015 and 2018, and will de ... More
Presented by Mr. Tao WANG on 28 Aug 2021 at 2:30 PM
We study the measurement of Higgs boson self-couplings through 2 → 3 vector boson scattering (VBS) processes in the framework of Standard Model effective field theory (SMEFT) at both proton and lepton colliders. The SMEFT contribution to the amplitude of the 2 → 3 VBS processes, taking WLWL → WLWLh and WLWL → hhh as examples, exhibits enhancement with the energy A(BSM)/A(SM) ~which indicat ... More
Presented by Dr. Junmou (俊谋) CHEN (谌) on 29 Aug 2021 at 3:10 PM
I will discuss the general difficulty in New Physics search, and how to put an upper limit on New Physics scale (which can be detected or excluded in the near future) via strong 1st order electroweak phase transition.
Presented by mengchao ZHANG on 29 Aug 2021 at 5:00 PM
Recently, we present for the first time a calculation of the complete next-to-leading order corrections to the $gg \to ZH$ process. We use the method of small mass expansion to tackle the most challenging two-loop virtual amplitude, in which the top quark mass dependence is retained throughout the calculations. We show that our method provides reliable numeric results in all kinematic regions, and ... More
Presented by 国兴 王 on 28 Aug 2021 at 11:40 AM
Presented by Luca CADAMURO on 29 Aug 2021 at 2:00 PM
Session: Openning
on 28 Aug 2021 at 8:40 AM
Presented by Mr. Manqi RUAN on 28 Aug 2021 at 4:50 PM
Presented by 楠 鲁 on 28 Aug 2021 at 10:10 AM
Presented by Jian WANG on 28 Aug 2021 at 9:40 AM
We propose a novel primordial black hole (PBH) formation mechanism based on a first-order phase transition (FOPT). If a fermion species gains a huge mass in the true vacuum, the corresponding particles get trapped in the false vacuum as they do not have sufficient energy to penetrate the bubble wall. After the FOPT, the fermions are compressed into the false vacuum remnants to form non-topological ... More
Presented by 柯盼 谢 on 29 Aug 2021 at 10:00 AM
The top quark is the heaviest elementary particle, studying its interaction with the Higgs boson not only helps to further understand the newly discovered Higgs boson itself, but also opens new opportunities to probe the BSM physics. This talk will summarize recent new experimental results that connect the top-Higgs interaction with searches of new physics beyond the standard model with the LHC Ru ... More
Presented by Hualin MEI on 28 Aug 2021 at 4:30 PM
Advances in boosted jet tagging techniques, particularly with novel machine learning approaches, have led to significant performance improvements in the reconstruction and identification of the hadronic decays of the Higgs boson and provided additional handles to probe the Higgs boson properties at the LHC. In this talk, I will present recent progress in machine learning-based methods for boosted ... More
Presented by Huilin QU on 29 Aug 2021 at 4:40 PM
We study the complementarity of the proposed multi-TeV muon colliders and the near-future gravitational wave (GW) detectors to the first order electroweak phase transition (FOEWPT), taking the real scalar extended Standard Model as the representative model. A detailed collider simulation shows the FOEWPT parameter space can be greatly probed via the the vector boson fusion production of the single ... More
Presented by Dr. Wei LIU on 29 Aug 2021 at 11:40 AM
We numerically investigate the B+L violation process by performing three-dimensional lattice simulations of a unified scenario of first-order phase transitions and the sphaleron generation. The simulation results indicate that the Chern-Simons number changes along with the helical magnetic field production when the sphaleron decay occurs. Based on these numerical results, we then propose a novel m ... More
Presented by Prof. Ligong BIAN on 29 Aug 2021 at 11:20 AM
The electroweak symmetry breaking (EWSB) mechanism is still an undecided question in particle physics. We propose to utilize the single top quark and Higgs associated production ($th$), $Zh$ production via gluon fusion at the LHC to probe the couplings between the Higgs and the gauge bosons and further to test the EWSB. We demonstrate that the $th$ and $gg\to Zh$ productions are sensitive to the ... More
Presented by Dr. Bin YAN on 28 Aug 2021 at 11:00 AM
Session: Pre-School
on 27 Aug 2021 at 9:00 AM
A search for non-resonant and resonant Higgs boson pair production in bbττ final states is conducted using p-p collision data with an integrated luminosity of 139 fb−1 collected at s=√13 TeV by the ATLAS detector at the LHC. Events with at least one τ-lepton decaying hadronically are considered. Multivariate analysis techniques are used to extract the signals. The talk will show an overview ... More
Presented by 博文 张 on 29 Aug 2021 at 2:50 PM
Searches are performed for non-resonant and resonant di-Higgs boson production in the 𝑏𝑏 ̄𝛾𝛾 final state. The data set used corresponds to an integrated luminosity of 139 fb−1 of proton–proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No excess with respect to background expectations is found and upper limits ... More
Presented by 子航 贾 on 29 Aug 2021 at 2:30 PM
Session: BSM Higgs sector
A search for a vector boson produced in addition to two SM Higgs bosons is studied. Three different models are considered either non-resonant production with SM-like or non-SM-like Higgs self-coupling and hhVV coupling, or resonant production in the form of either VH(hh) or A→ZH(hh). Three sub-channel is considered for different decay mode for vector boson to Zll/Wlv/Zvv final states. Only HH->b ... More
Presented by Mr. Zhongyukun XU on 30 Aug 2021 at 2:50 PM
Session: BSM Higgs sector
A search for charged Higgs bosons decaying into $W^{\pm} W{^\pm}$ or $W^{\pm} Z$ bosons is performed, involving experimental signatures with two leptons of the same charge, or three or four leptons with a variety of charge combinations, missing transverse momentum and jets. A data sample of proton--proton collisions at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the La ... More
Presented by Mr. hanlin XU on 30 Aug 2021 at 11:10 AM
Session: BSM Higgs sector
This talk will cover the latest result of searching for heavy Higgs decaying to two tau leptons with the ATLAS full Run2 datasets using pp collison at $\sqrt(s)$ = 13 TeV. This search is performed over the mass range of 0.2-2.5 TeV and the two $\tau$ leptons decay is considered, where at least one $\tau$ decays leptonically. This channel is sensitive at high $\tan\beta$ value acoording to hMSSM an ... More
Presented by 瀚非 叶 on 30 Aug 2021 at 10:50 AM
Presented by Dr. yanping HUANG on 28 Aug 2021 at 2:00 PM
Session: BSM Higgs sector
Presented by Jin WANG on 30 Aug 2021 at 2:00 PM
Session: BSM Higgs sector
Presented by Prof. Igor IVANOV
Session: BSM Higgs sector
New Physics can manifest itself at colliders in the form of a non-minimal Higgs sector. In particular, the Higgs doublets can also come in generations leading to rich phenomenology. In this talk, I will give a brief overview of the three-Higgs-doublet models (3HDM) focusing on novel model-building opportunities, which go beyond the well studied 2HDM case. I will highlight some recent results relat ... More
Presented by Prof. Igor IVANOV on 30 Aug 2021 at 11:30 AM
A study showed that the multilepton anomalies in the LHC data could be explained by adding two real scalar bosons to the SM. This study provides a more comprehensive set of LHC results of the multilepton production. We find that combining such results leads to substantial inconsistencies between the data and SM Monte Carlo predictions. These discrepancies appear in corners of the phase-space where ... More
Presented by ABDUALAZEM FADOL MOHAMMED EBRHIM on 29 Aug 2021 at 4:20 PM
Session: Openning
Presented by Prof. 伯根 王 on 28 Aug 2021 at 8:55 AM
The energy budget of electroweak first-order phase transition is essential for the gravitational wave spectra. Most of the previous studies are based on the bag model with same sound velocity in the symmetric and broken phase. We study the energy budget and the corresponding gravitational wave spectra beyond the bag model, where the sound velocities could be different in the symmetric and brok ... More
Presented by Dr. 潇 王 on 29 Aug 2021 at 11:00 AM