Conveners
Direct BSM
- Xin Chen (University of Wisconsin-Madison)
- Li Yuan (Beihang University)
- Yun JIANG (U.C. Davis)
- Ligong Bian (ITP/KITPC)
Mr
Haibin Chen
(Sun Yat-sen University)
7/27/22, 9:30 AM
It has been demonstrated that first-order phase transitions (PTs) are achievable in a large number of BSM models. However, the successful nucleation of PT vacuum bubbles is often overlooked. Using the singlet model as an example, we will present the possible patterns of PTs achieved and build the connection to the vacuum structure at zero temperature. In this talk we focus on the one-step PTs...
Dr
Ke-Pan Xie
(University of Nebraska-Lincoln)
7/27/22, 9:50 AM
We propose a mechanism that forms primordial black holes (PBHs) via a first-order electroweak phase transition (FOEWPT). The FOEWPT is realized by extending the Standard Model with a real singlet scalar, while the PBH formation is achieved by the collapse of non-topological solitons called Fermi-balls. Such solitons form via trapping fermions in the false vacuum during the FOEWPT, and they...
Wei Liu
(Nanjing University of Science and Technology)
7/27/22, 2:30 PM
We study the scenarios where a strong first order electroweak phase transition~(FOEWPT) is triggered by a light singlet scalar, which has feeble interactions to the Higgs.
Since the singlet scalar is light and has weak couplings, it can decay at a macroscopic distance away from the collision point. Therefore, it can be regarded as a long-lived particles~(LLP) in such scenarios. We perform...
mingming xia
(Tsinghua University)
7/27/22, 2:50 PM
The large integrated luminosity collected by the ATLAS detector at the highest proton-proton collision energy provided by LHC allows to probe the presence of new physics that could enhance the rate of rare processes in the SM. The LHC can therefore gain considerable sensitivity for Flavour Changing Neutral Current (FCNC) interactions of the top quark. In the SM, FCNC involving the top-quark...
Changqiao LI
(SJTU & TDLI)
,
Qibin Liu
(TDLI & SJTU)
7/27/22, 3:10 PM
This talk will present the latest searches for Mono-H125 and Mono-Scalar productions with SM and BSM Higgs as a direct probe to BSM portal of new physics and especially Dark Matter. A potential of utilizing the boosted Xbb tagger will be also discussed.
伟 苏
(university of Adelaide)
7/27/22, 4:40 PM
We perform comparative studies for four types of the two Higgs Doublet Models (2HDMs) under the precision measurements of the Standard Model (SM) Higgs observables at the proposed Higgs factories. The exploration for the discovery potential is up to one-loop level. We find 5σ observability from the global fitting in a significant theory parameter space at future Higgs factories. We also...
yue xu
(Tsinghua University)
7/27/22, 5:00 PM
A search for heavy Higgs bosons decaying into a pair of vector bosons and produced in association with a vector boson is performed, using final states with two leptons of the same electric charge (electrons or muons), 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 Large Hadron Collider...
Antonio De Maria
(Nanjing University)
7/27/22, 5:20 PM
This talk will present a search for scalar leptoquarks in btautau final state using a data sample corresponding to 139 fb$^{-1}$ of proton–proton collisions recorded at a center-of-mass energy of $\sqrt{s}$= 13 TeV with the ATLAS detector at the Large Hadron Collider. The signal benchmark model considered is a scalar leptoquark with an electric charge of 4/3e and quantum numbers 3B + L = -2,...
