Liangliang Shang

New Physics Search at the CEPC: a General Perspective

Stefan Antusch, Peter Athron, Daniele Barducci, Long Chen et autres

The Circular Electron-Positron Collider (CEPC), a proposed next-generation Higgs factory, provides new opportunities to explore physics beyond the Standard Model (SM). With its clean electron-positron collision environment and the ability to collect large samples of Higgs, W, and Z bosons, the CEPC …

Vector-like tops from first generation quarks: the role of width and coupling chiralities in same-charge production at the LHC

Stefano Moretti, Luca Panizzi, Liangliang Shang

In this paper, we tension the scope of the $q\bar q, gg\to T \bar T$ production process against that of the same-charge $uu\to TT$ one in searching for Vector-Like Quarks (VLQs) with electromagnetic charge $+2/3$ at the Large Hadron Collider (LHC). The …

Single production of an exotic vectorlike Y quark at future high energy p p colliders

Liangliang Shang, Yuxiao Yan, Stefano Moretti, Bingfang Yang

Vectorlike quarks have been predicted in various new physics scenarios beyond the Standard Model. In a simplified modelling of a ( B , Y ) doublet including a vectorlike quark Y , with charge − 4 3 e , there are only …

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A Preliminary Study on a Common Control Structure in the Water Supply Industry

Ze Yan, Shaotong Xu, Peng Wang, Jincan Zhang et autres

The residual chlorine Concentration of outlet water from Drinking Water Treatment Plants (DWTP) is an important indicator for drinking water. However, it is currently common that even if the chlorine system has an automatic dosing function, manual intervention is still required. In …

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EasyScan_HEP: A tool for connecting programs to scan the parameter space of physics models

Liangliang Shang, Yang Zhang

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A simulated search for the singlet vector-like bottom quark decaying into tW at high energy pp colliders

J. Han, Liangliang Shang, Bingfang Yang

Abstract In a framework of simplified model, we perform a simulated search for the singlet vector-like bottom quark B decaying into tW with t hadronic decay and W leptonic decay at the 14 TeV high-luminosity LHC (HL-LHC), 27 TeV high energy LHC …

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Properties of Heavy Higgs Bosons and Dark Matter under Current Experimental Limits in the $μ$NMSSM

Zhaoxia Heng, Xingjuan Li, Liangliang Shang

Searches for new particles beyond the Standard Model (SM) are an important task for the Large Hadron Collider (LHC). In this paper, we investigate the properties of the heavy non-SM Higgs bosons in the $μ$-term extended Next-to-Minimal Supersymmetric Standard Model ($μ$NMSSM). We …

Single vector-like quark X production in the tW channel at high energy pp colliders

Liangliang Shang, Kai Sun

Vector-like quarks (VLQs) are color-triplet spin-1/2 fermions whose left- and right-handed chiral components have the same transformation properties under the weak-isospin SU(2) gauge group. The X vector-like particle with a charge of |Q|=+5/3 exists in the (X,T) doublet or (X,T,B) triplet states. …

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Search for the singlet vector-like top quark in the $T\to tZ$ channel with $Z\to ν\barν$ at hadron colliders

Han Lin, Shiyu Wang, Liangliang Shang, Bingfang Yang

Based on a simplified model including a singlet vector-like top quark $T$ with charge $|Q|=2/3$, we analyze the prospects of observing $T$ via the single $T$ production in the $tZ$ channel with $Z$ decaying to neutrinos at the hadron-hadron colliders. This simplified …

The Phenomenological Research on Higgs and dark matter in the Next-to-Minimal Supersymmetric Standard Model

Zhaoxia Heng, Shenshen Yang, Xingjuan Li, Liangliang Shang

The $Z_3$-invariant next-to-minimal supersymmetric standard model (NMSSM) can provide a candidate for dark matter (DM). It can also be used to explain the hypothesis that the Higgs signal observed on the Large Hadron Collider (LHC) comes from the contribution of the two …

The Phenomenological Research on Higgs and Dark Matter in the Next-to-Minimal Supersymmetric Standard Model

Zhaoxia Heng, Shenshen Yang, Xingjuan Li, Liangliang Shang

The Z3-invariant next-to-minimal supersymmetric standard model (NMSSM) can provide a candidate for dark matter (DM). It can also be used to explain the hypothesis that the Higgs signal observed on the Large Hadron Collider (LHC) comes from the contribution of the two …

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W-boson mass, dark matter and muon (g-2) in the μNMSSM

Zhaoxia Heng, Xingjuan Li, Liangliang Shang

A new CDF II measurement of the [Formula: see text]-boson mass indicated a 7[Formula: see text] deviation from the Standard Model (SM) prediction, and the previous FNAL and BNL measurement of muon ([Formula: see text]-2) showed a 4.2[Formula: see text] deviation from …

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