Han Zhang

activity

20222026

f_{0} (980)

in the process

D_{s}^{+} \to π^{+} π^{0} π^{0}

14 citations · 47 across the 13 of their papers we have counts for

collaborators

13 papers

hep-ex2026

Amplitude analysis for charmed meson decays at BESIII

Han Zhang, Zhenxuan Li, Chunyi Guan +9

Amplitude analysis bridges the gap between experimental measurements of multibody charmed-meson decays and theoretical predictions of intermediate two-body processes. This work pre…

hep-ph2026

Angular and invariant-mass observables in the four-body Higgs decay $h \to ℓ ν ˉ_{ℓ} ℓ ˉ^{'} ν_{ℓ^{'}}$

Han Zhang, Bai-Cian Ke, Yao Yu +2

We study the angular distribution of the Higgs boson decay $h \to ℓ ν ˉ_{ℓ} ℓ ˉ^{'} ν_{ℓ^{'}}$ with $ℓ \neq = ℓ^{'}$ . Due to the presence of two undetected ne…

hep-ph2025

Testing Non-Standard Neutrinos in Purely Leptonic Lepton Decays

Han Zhang, Bai-Cian Ke, Yao Yu

We propose a method to probe sterile neutrinos using polarization observables in the purely leptonic decays $ℓ^{' -} \to ℓ^{-} ν ˉ_{ℓ} ν_{ℓ^{'}}$ . By analyzi…

astro-ph.CO2025

Power-Law Inflation Survives Observational Constraints

Yao Yu, Wen-Zhang Feng, Hong-Song Xie +2

Power-law inflation has stood as a classical model in inflationary cosmology since the early 1980s, prized for its exact analytical solutions and ability to naturally resolve the B…

hep-ph2024★ 6 cited

Roles of the scalar $f_{0} (500)$ and $f_{0} (980)$ in the process $D^{0} \to π^{0} π^{0} K ˉ^{0}$

Xiao-Hui Zhang, Han Zhang, Bai-Cian Ke +3

Motivated by the near-threshold enhancement and the dip structure around 1~GeV in the $π^{0} π^{0}$ invariant mass distribution of the process $D^{0} \to π^{0} π^{0} K ˉ^{0}$ observed by the C…

hep-ph2024★ 4 cited

A phenomenological estimate of rescattering effects in $B_{s} \to K^{* 0} K ˉ^{* 0}$

Yao Yu, Hai-Bing Fu, Han Zhang +1

The measurements in $b \to s$ penguin-dominated decays are widely recognized as a powerful test for searching for New Physics by studying the deviation from theoretical estimations…

hep-ph2024

Novel Model-Independent Approach to Explore New Physics in Five-body Semileptonic Decays

Yao Yu, Hong-Song Xie, Han Zhang +3

Substantial contribution of the tensor current in semileptonic decays is regarded as a clear signal for new physics. In this work, we propose a model-independent approach to unambi…

hep-ph2024★ 1 cited

Five-body $D \to V$ Semileptonic Decays

Yechun Yu, Han Zhang, Bai-Cian Ke +3

Our main objective is to derive the decay rate for the semileptonic decays $D \to V ℓ^{+} ν_{ℓ} (ℓ = e, μ)$ , where $V$ represents a vector particle. In these decays, the vector p…

hep-ph2023★ 2 cited

Investigating $Z_{cs} (3985)$ and $Z_{cs} (4000)$ exotic states in $Λ_{b} \to Z_{cs}^{-} p$ decays

Yao Yu, Zhuang Xiong, Han Zhang +4

We study the $Z_{cs} (3985)$ and $Z_{cs} (4000)$ exotic states in the decays of $Λ_{b}$ baryons through a molecular scenario. In the final state interaction, the $Λ_b\to Λ_c^+ D_s^{(*)…

hep-ph2023★ 6 cited

Muon mass correction in partial wave analyses of charmed meson semi-leptonic decays

Han Zhang, Bai-Cian Ke, Yao Yu +1

We derive the parameterization formula for partial wave analyses of charmed meson semi-leptonic decays with consideration of the effects caused by the lepton mass. As the proposed…

hep-ph2023★ 8 cited

Photo-production of lowest $Σ_{1/ 2^{-}}^{*}$ state within the Regge-effective Lagrangian approach

Yun-He Lyu, Han Zhang, Neng-Chang Wei +3

Since the lowest $Σ^{*}$ state, with quantum numbers spin-parity $J^{P} = 1/ 2^{-}$ , is far from established experimentally and theoretically, we have performed a theoretical study o…

hep-ph2022★ 14 cited

Role of the scalar $f_{0} (980)$ in the process $D_{s}^{+} \to π^{+} π^{0} π^{0}$

Han Zhang, Yun-He Lyu, Li-Juan Liu +1

Based on the BESIII measurements on the reaction of $D_{s}^{+} \to π^{+} π^{0} π^{0}$ , we investigate this process by considering the $S$ -wave pseudoscalar-pseudoscalar interaction within the u…

hep-ph2022★ 6 cited

Investigating $η_{1}^{'} (1855)$ exotic states in $J / ψ \to η_{1}^{'} (1855) η^{(')}$ decays

Yao Yu, Xiong Zhuang, Han Zhang +3

An analysis of the $J / ψ \to η η^{'} γ$ decay by the BESIII collaboration claims the observation of an exotic state $η_{1} (1855)$ with $I^{G} J^{P C} = 0^{+} 1^{-+}$ . To establish its C-parity…

Amplitude analysis for charmed meson decays at BESIII

Angular and invariant-mass observables in the four-body Higgs decay h→ℓνˉℓ​ℓˉ′νℓ′​

Testing Non-Standard Neutrinos in Purely Leptonic Lepton Decays

Power-Law Inflation Survives Observational Constraints

Roles of the scalar f0​(500) and f0​(980) in the process D0→π0π0Kˉ0

A phenomenological estimate of rescattering effects in Bs​→K∗0Kˉ∗0

Novel Model-Independent Approach to Explore New Physics in Five-body Semileptonic Decays

Five-body D→V Semileptonic Decays

Investigating Zcs​(3985) and Zcs​(4000) exotic states in Λb​→Zcs−​p decays