Jing-Jing Feng

activity

20172022

collaborators

6 papers

hep-ph2022

$N_{eff}$ from Excited DM state

Wei Chao, Jing-Jing Feng, Ming-Jie Jin

For a cold dark matter (DM) originating from the co-annihilation processes, there will be excited state(s) in the dark sector, that may decay or annihilate away shortly after their…

hep-ph2021

A new Direct Detection Strategy for the Cosmic Neutrino Background

Wei Chao, Jing-jing Feng, Mingjie Jin +1

The direct detection of cosmic neutrino background (CNB) has been a longstanding challenge in particle physics, due to its low number density and tiny neutrino masses. In this work…

hep-ph2020

Light neutralino dark matter in $U (1)_{X}$ SSM

Shu-Min Zhao, Guo-Zhu Ning, Jing-Jing Feng +2

The $U (1)_{X}$ extension of the minimal supersymmetric standard model(MSSM) is called as $U (1)_{X}$ SSM with the local gauge group $S U (3)_{C} \times S U (2)_{L} \times U (1)_{Y} \times U (1)_{X}$ . $…

hep-ph2019

Study of dark matter in the extended BLMSSM

Jing-Jing Feng, Shu-Min Zhao, Xing-Xing Dong +4

There are strong evidences for existence of dark matter in some experiments at present. However, the question is that we do not have a reasonable explanation for dark matter in the…

hep-ph2018

Higgs boson decay $h^{0} \to m_{V} Z$ in the BLMSSM

Shu-Min Zhao, Tai-Fu Feng, Jian-Bin Chen +3

In the framework of BLMSSM, the Higgs decays $h^{0} \to Z γ$ and $h^{0} \to m_{V} Z$ are studied where $m_{V}$ represents a vector meson( $ρ, ω, ϕ, J / ψ, Υ$ etc.). Corrections to…

hep-ph2017

Search for charged lepton flavor violation of vector mesons in BLMSSM model

Xing-Xing Dong, Shu-Min Zhao, Jing-Jing Feng +4

We analyze the charged lepton flavor violating (CLFV) decays of vector mesons $V \to l_{i}^{\pm} l_{j}^{\mp}$ with $V \in {ϕ, J /Ψ, Υ, ρ^{0}, ω}$ in BLMSSM model. This new model is…

Neff​ from Excited DM state