Hiwa A. Ahmed

activity

20202026

σ

f_{0} (980)

, and

a_{0} (980)

states

35 citations · 44 across the 12 of their papers we have counts for

collaborators

12 papers

hep-ph2026

Medium effect on spin alignment of strange and charm vector mesons

Ruixiang Chen, Hiwa A. Ahmed, Yidian Chen +1

Understanding the spin alignment of vector mesons in relativistic heavy-ion collisions requires a nonperturbative description of their spin-dependent in-medium properties. We inves…

hep-ph2026

Effects of Born-Infeld Electrodynamics on Chiral Symmetry Restoration and Meson Susceptibilities in Holographic QCD

Hiwa A. Ahmed, Peshwaz A. Abdoul

Within a holographic QCD framework, we numerically investigate chiral symmetry breaking and the associated phase transition at finite temperature and chemical potential. The model…

hep-ph2026

Probing the chiral and $U (1)$ axial symmetry restoration via meson susceptibilities in holographic QCD

Hiwa A. Ahmed, Danning Li, Mamiya Kawaguchi +1

We investigate the restoration patterns of chiral and $U (1)$ axial symmetries at finite temperature using a soft-wall holographic QCD model. The study employs two distinct paramete…

hep-ph2025

Gluon polarization contribution to the spin alignment of vector mesons from holography

Hiwa A. Ahmed, Yidian Chen, Mei Huang

We investigate the behaviour of vector mesons $ρ$ , $ϕ$ , and $J /Ψ$ in both non-rotating and rotating thermal media using the soft-wall holographic QCD model with four flavours. By i…

hep-ph2024

The effect of charm quark on chiral phase transition in $N_{f} = 2 + 1 + 1$ holographic QCD

Hiwa A. Ahmed, Mamiya Kawaguchi, Mei Huang

We investigate the effect of charm quark on the chiral phase transition of light quarks at finite temperature based on the four-flavor soft-wall holographic QCD model. In the massl…

hep-ph2023

$D_{(s)} -$ mesons semileptonic form factors in the 4-flavor holographic QCD

Hiwa A. Ahmed, Yidian Chen, Mei Huang

We investigate semileptonic form factors of $D_{(s)}$ meson from a modified soft-wall 4-flavor holographic model. The model successfully reproduces the masses and decay constants o…

hep-ph2023

The electromagnetic form factors in the $N_{f} = 4$ holographic QCD

Hiwa A. Ahmed, Yidian Chen, Mei Huang

In this study, we employ a modified soft-wall holographic model with four flavors to investigate the meson spectra, decay constants, electromagnetic form factors, and charge radius…

hep-ph2022

Study of $B ˉ_{(s)}^{0}$ decaying into $D^{0}$ and $π^{+} π^{-}$ , $K^{+} K^{-}$ , or $π^{0} η$ with final state interactions

Hiwa A. Ahmed, C. W. Xiao

We investigate the resonant contributions in the decays $B ˉ_{(s)}^{0} \to D^{0} π^{+} π^{-}$ , $B ˉ_{(s)}^{0} \to D^{0} K^{+} K^{-}$ , and $B ˉ^{0} \to D^{0} π^{0} η$ by co…

hep-ph2021

Scalar resonances in the final state interactions of the decays $D^{0} \to π^{0} π^{0} π^{0}, π^{0} π^{0} η, π^{0} η η$

Zhong-Yu Wang, Hiwa A. Ahmed, C. W. Xiao

We investigate the scalar resonances in the processes of $D^{0} \to π^{0} π^{0} π^{0}, π^{0} π^{0} η, π^{0} η η$ decays based on the chiral unitary approach for the final state i…

hep-ph2021★ 9 cited

Is two-poles' $Λ (1405)$ one state or two?

Zhong-Yu Wang, Hiwa A. Ahmed, C. W. Xiao

To understand the nature of two poles for the $Λ (1405)$ state, we revisit the interactions of $K ˉ N$ and $π Σ$ with their coupled channels, where two-poles structure is found in…

hep-ph2020

Study $B_{(s)}^{0}$ decays into $ϕ$ and a scalar or vector meson

Hiwa A. Ahmed, Zhong-Yu Wang, Zhi-Feng Sun +1

In the present work, we investigate the decays of $B_{s}^{0} \to ϕ π^{+} π^{-}$ and $B^{0} \to ϕ π^{+} π^{-}$ with the final state interactions based on the chiral unit…

hep-ph2020★ 35 cited

Study the molecular nature of $σ$ , $f_{0} (980)$ , and $a_{0} (980)$ states

Hiwa A. Ahmed, C. W. Xiao

We investigate the characteristics of $σ$ , $f_{0} (980)$ , and $a_{0} (980)$ with the formalism of chiral unitary approach. With the dynamical generation of them, we make a further st…

Medium effect on spin alignment of strange and charm vector mesons

Effects of Born-Infeld Electrodynamics on Chiral Symmetry Restoration and Meson Susceptibilities in Holographic QCD

Probing the chiral and U(1) axial symmetry restoration via meson susceptibilities in holographic QCD

Gluon polarization contribution to the spin alignment of vector mesons from holography

The effect of charm quark on chiral phase transition in Nf​=2+1+1 holographic QCD

D(s)​− mesons semileptonic form factors in the 4-flavor holographic QCD

The electromagnetic form factors in the Nf​=4 holographic QCD

Study of Bˉ(s)0​ decaying into D0 and π+π−, K+K−, or π0η with final state interactions

Scalar resonances in the final state interactions of the decays D0→π0π0π0,π0π0η,π0ηη

Is two-poles' Λ(1405) one state or two?

Study B(s)0​ decays into ϕ and a scalar or vector meson

Study the molecular nature of σ, f0​(980), and a0​(980) states

Probing the chiral and $U (1)$ axial symmetry restoration via meson susceptibilities in holographic QCD

The effect of charm quark on chiral phase transition in $N_{f} = 2 + 1 + 1$ holographic QCD

$D_{(s)} -$ mesons semileptonic form factors in the 4-flavor holographic QCD

The electromagnetic form factors in the $N_{f} = 4$ holographic QCD

Study of $B ˉ_{(s)}^{0}$ decaying into $D^{0}$ and $π^{+} π^{-}$ , $K^{+} K^{-}$ , or $π^{0} η$ with final state interactions

Scalar resonances in the final state interactions of the decays $D^{0} \to π^{0} π^{0} π^{0}, π^{0} π^{0} η, π^{0} η η$

Is two-poles' $Λ (1405)$ one state or two?

Study $B_{(s)}^{0}$ decays into $ϕ$ and a scalar or vector meson

Study the molecular nature of $σ$ , $f_{0} (980)$ , and $a_{0} (980)$ states