Vietnam National University Ho Chi Minh City

output

20022026

most citedThe Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package

7.7k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

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23 papers · 1 filter

hep-ph2025★ 2 cited

Rare few-body decays of the Standard Model Higgs boson

David d'Enterria, Van Dung Le

We present a survey of rare and exclusive few-body decays of the standard model (SM) Higgs boson, defined as those into two to four final particles with branching fractions $\mathc…

hep-ph2024

Twin electroweak bubble nucleation and gravitational wave under the $S_{3}$ symmetry of two-Higgs-doublet model

Vo Quoc Phong, Nguyen Xuan Vinh, Phan Hong Khiem

Sphaleron electroweak phase transition (EWPT) is calculated in two phase transition stages, thereby showing that the twin (or double) bubble nucleation structure of the phase trans…

hep-ph2024

Sphaleron and gravitational wave with the Higgs-Dilaton potential in the Standard Model Two-Time Physics

Vo Quoc Phong, Quach Ai Mi, Nguyen Xuan Vinh

By introducing a Higgs-Dilaton potential, the 2T model has a trigger for a first order electroweak phase transition, namely for the mass of Dilaton between $300$ GeV and $550$ GeV…

hep-ph2024★ 1 cited

Decays $Z \to e_{a} e_{b}$ in a 3-3-1 model with neutral leptons

T. T. Hong, L. T. Hue, L. T. T. Phuong +2

We investigate the 3-3-1 model with neutral leptons (called the 331 $N L$ for short) and by that, we will point out that this model can simultaneously explain the lepton flavor viola…

hep-ph2023★ 22 cited

Rare and exclusive few-body decays of the Higgs, Z, W bosons, and the top quark

David d'Enterria, Van Dung Le

We perform an extensive survey of rare and exclusive few-body decays -- defined as those with branching fractions $B ≲ 1 0^{- 5}$ into two to four final particles --…

hep-ph2023★ 7 cited

Decays of Standard Model like Higgs boson $h \to γ γ, Z γ$ in a minimal left-right symmetric model

T. T. Hong, V. K. Le, L. T. T. Phuong +3

Two decay channels $h \to γ γ, Z γ$ of the Standard Model-like Higgs in a left-right symmetry model are investigated under recent experimental data. We will show there exist o…

hep-ph2023★ 12 cited

Radiative decays $D^*_{(s)}\to D_{(s)}γ$ in covariant confined quark model

Chien-Thang Tran, Mikhail A. Ivanov, Pietro Santorelli +1

Radiative decays $D_{(s)}^{*} \to D_{(s)} γ$ are revisited in light of new experimental data from the \textit{BABAR} and BESIII collaborations. The radiative couplings $g_{D^{*} D γ}$ enco…

hep-ph2023

Two Higgs doublet model fitting and $t t ˉ b b ˉ$ signal at the ILC

Hieu Minh Tran, Huong Thu Nguyen, Yoshimasa Kurihara

One of the most straightforward extensions of the standard model (SM) is having an additional Higgs doublet to the SM, namely the two Higgs doublet models(THDM). In the type-I mode…

hep-ph2022★ 5 cited

Dual electroweak phase transition in the two-Higgs-doublet model with the $S_{3}$ discrete symmetry

Vo Quoc Phong, Nguyen Minh Anh, Hoang Ngoc Long

In this work, dual electroweak phase transition (EWPT) consisting of two phases, is carefully studied in the two-Higgs-doublet model with the $S_{3}$ discrete symmetry. The role of $…

hep-ph2021★ 5 cited

Sphaleron bound in some nonstandard cosmology scenarios

Ngo Phuc Duc Loc

In the first scenario, we revise the upper bound of the cutoff scale of the dimension-six potential Higgs operator required for a successful electroweak baryogenesis in the case of…

hep-ph2021★ 7 cited

Baryogenesis and gravitational waves in the Zee-Babu Model

Vo Quoc Phong, Nguyen Chi Thao, Hoang Ngoc Long

To explain the matter-antimatter asymmetry in the Zee-Babu (ZB) model, the sphaleron process in the baryogenesis scenario is calculated. It always satisfies the de-coupling conditi…

hep-ph2021★ 1 cited

Constraint on the Higgs-Dilaton potential via Warm inflation in Two-Time Physics

Vo Quoc Phong, Ngo Phuc Duc Loc

Within the $S P (2, R)$ symmetry, the Two-time model (2T model) has six dimensions with two dimensions of time and the dilaton field that can be identified as inflaton in a warm infla…

hep-ph2020★ 6 cited

Inflation with a class of concave inflaton potentials in Randall-Sundrum model

Ngo Phuc Duc Loc

We investigate inflation with a class of concave inflaton potentials of the form $\sim ϕ^{n}$ $(0 < n < 1)$ in the Randall-Sundrum model with an infinite extra spatial dimension. We show…

hep-ph2020★ 3 cited

Scalar 1-loop Feynman integrals as meromorphic functions in space-time dimension d, II: Special kinematics

Khiem Hong Phan

Based on the method developed in [K.~H.~Phan and T.~Riemann, Phys.\ Lett.\ B {\bf 791} (2019) 257], detailed analytic results for scalar one-loop two-, three-, four-point integrals…

hep-ph2020★ 2 cited

Hypergeometric presentation for one-loop contributing to $H \to Z γ$

Khiem Hong Phan, Dzung Tri Tran

In this paper, new analytic formulas for one-loop contributing to Higgs decay channel $H \to Z γ$ are presented in terms of hypergeometric functions. The calculations are pe…

hep-ph2020★ 16 cited

Sphaleron in the first-order electroweak phase transition with the dimension-six Higgs operator

Vo Quoc Phong, Phan Hong Khiem, Ngo Phuc Duc Loc +1

By adding the dimension-six operator for the Higgs potential (denoted $O_{6}$ ) in Standard Model, we have a first-order electroweak phase transition (EWPT) whose strength i…

hep-ph2019★ 83 cited

Constraining new physics from Higgs measurements with Lilith: update to LHC Run 2 results

Sabine Kraml, Tran Quang Loc, Dao Thi Nhung +1

Lilith is a public Python library for constraining new physics from Higgs signal strength measurements. We here present version 2.0 of Lilith together with an updated XML database…

hep-ph2019★ 2 cited

Electro-weak Phase Transition With Three Phases in The $S U (2)_{1} \otimes S U (2)_{2} \otimes U (1)_{Y}$ Model

Vo Quoc Phong, Nguyen Minh Anh

Our analysis shows that SM-like electroweak phase transition (EWPT) in the $S U (2)_{1} \otimes S U (2)_{2} \otimes U (1)_{Y}$ (2-2-1) model is a first-order phase transition at the $200$ GeV…

hep-ph2019★ 7 cited

One-loop three-point Feynman integrals with Appell $F_{1}$ hypergeometric functions

Khiem Hong Phan, Dzung Tri Tran

New analytic formulas for one-loop three-point Feynman integrals in general space-time dimension ( $d$ ) are presented in this paper. The calculations are performed at general config…

hep-ph2019★ 3 cited

Electroweak phase transition via Dilaton in Two-Time Physics

Vo Quoc Phong, Dam Quang Nam

The Two-time model (2T model) has six dimensions with two dimensions of time, has a Dilaton particle that makes the symmetry breaking differently from the Standard Model. Assuming…

hep-ph2018★ 16 cited

Scalar 1-loop Feynman integrals as meromorphic functions in space-time dimension d

Khiem Hong Phan, Tord Riemann

The long-standing problem of representing the general massive one-loop Feynman integral as a meromorphic function of the space-time dimension $d$ has been solved for the basis of s…

hep-ph2018★ 5 cited

Multi-period structure of electro-weak phase transition in the 3-3-1-1 model

Vo Quoc Phong, N. T. Tuong, N. C. Thao +1

The electroweak phase transition (EWPT) is considered in the framework of 3-3-1-1 model for Dark Matter. The phase structure within three or two periods is approximated for the the…

hep-ph2015★ 8 cited

Baryogenesis in the Zee-Babu model with arbitrary $ξ$ gauge