1.

B s ( d ) − B ¯ $$ \overline{B} $$ s ( d ) mixing and B s → μ + μ − decay in the NMSSM with the Flavour Expansion Theorem
/ Hu, QuanYi ; Li, XinQiang ; Yang, YaDong ; Zheng, MinDi
In this paper, motivated by the observation that the Standard Model predictions are now above the experimental data for the mass difference Δ M s ( d ) , we perform a detailed study of B s( d ) − B ¯ $$ \overline{B} $$ s ( d ) mixing and B s → μ + μ − decay in the ℤ 3 invariant NMSSM with nonminimal flavour violation, using the recently developed procedure based on the Flavour Expansion Theorem, with which one can perform a purely algebraic massinsertion expansion of an amplitude written in the mass eigenstate basis without performing any diagrammatic calculations in the interaction/flavour basis. [...]
Published in JHEP 1906 (2019) 133
10.1007/JHEP06(2019)133
arXiv:1903.06927
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2.

b→cτν transitions in the standard model effective field theory
/ Hu, QuanYi ; Li, XinQiang ; Yang, YaDong
The R(D(∗)) anomalies observed in B→D(∗)τν decays have attracted much attention in recent years. [...]
Published in EPJC 79 (2019) 264
10.1140/epjc/s1005201967668
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3.

Muon $g2$ in a $U\left(1\right)$symmetric twoHiggsdoublet model
/ Li, ShaoPing ; Li, XinQiang ; Yang, YaDong
We show in this paper that, in a $U\left(1\right)$symmetric twoHiggsdoublet model, the two additional neutral Higgs bosons would become nearly degenerate in the large $\mathrm{tan}\beta $ regime, under the combined constraints from both theoretical arguments and experimental measurements. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.035010
arXiv:1808.02424
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4.

$R$parity violating solutions to the ${R}_{{D}^{(*)}}$ anomaly and their GUTscale unifications
/ Hu, QuanYi ; Li, XinQiang ; Muramatsu, Yu ; Yang, YaDong
Recently, several $B$physics experiments report interesting anomalies in the semileptonic decays of $B$mesons, such as the excess in the ${R}_{{D}^{(*)}}$ measurements. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.015008
arXiv:1808.01419
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5.

Selfconsistency and covariance of lightfront quark models: Testing via $P$, $V$, and $A$ meson decay constants, and $P\to P$ weak transition form factors
/ Chang, Qin ; Li, XiaoNan ; Li, XinQiang ; Su, Fang ; et al
In this paper, we test the selfconsistencies of the standard and the covariant lightfront quark model and study the zeromode issue via the decay constants of pseudoscalar ($P$), vector ($V$) and axialvector ($A$) mesons, as well as the $P\to P$ weak transition form factors. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.114018
arXiv:1810.00296
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6.

R D * , R K * $$ {R}_{D^{\left(*\right)}},{R}_{K^{\left(*\right)}} $$ and neutrino mass in the 2HDMIII with righthanded neutrinos
/ Li, ShaoPing ; Li, XinQiang ; Yang, YaDong ; Zhang, Xin
Given that the twoHiggsdoublet model of type III (2HDMIII) has the potential to address the R D * $$ {R}_{D^{\left(*\right)}} $$ anomalies while the resolution to the R K * $$ {R}_{K^{\left(*\right)}} $$ deficits requires new degrees of freedom within this framework, we consider in this paper a unified scenario where the lowscale typeI seesaw mechanism is embedded into the 2HDMIII, so as to accommodate the R D * $$ {R}_{D^{\left(*\right)}} $$ and R K * $$ {R}_{K^{\left(*\right)}} $$ anomalies as well as the neutrino mass. [...]
Published in JHEP 1809 (2018) 149
10.1007/JHEP09(2018)149
arXiv:1807.08530
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7.

Decay constants of pseudoscalar and vector mesons with improved holographic wavefunctionSupported by National Natural Science Foundation of China (11475055, 11675061, 11435003), Q. Chang is also supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China (201317), the Program for Science and Technology Innovation Talents in Universities of Henan Province (14HASTIT036), the Excellent Youth Foundation of HNNU. X.L. is also supported in part by the selfdetermined research funds of CCNU from the colleges’ basic research and operation of MOE (CCNU18TS029)
/ Chang, Qin ; Li, XiaoNan ; Li, XinQiang ; Su, Fang
We calculate the decay constants of light and heavylight pseudoscalar and vector mesons with improved softwall holographic wavefuntions, which take into account the effects of both quark masses and dynamical spins. [...]
Published in Chinese Phys. C 42 (2018) 073102
10.1088/16741137/42/7/073102
arXiv:1805.00718
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8.

${K}^{\mathrm{0}}{\overline{K}}^{\mathrm{0}}$ Mixing in the Minimal FlavorViolating TwoHiggsDoublet Models
/ Su, Fang ; Cho, Natthawin ; Li, XinQiang ; Zhang, Xin
The twoHiggsdoublet model (2HDM), as one of the simplest extensions of the Standard Model (SM), is obtained by adding another scalar doublet to the SM and is featured by a pair of charged Higgs, which could affect many lowenergy processes. [...]
Published in Advances in High Energy Physics 2017 (2017) 2863647
10.1155/2017/2863647
arXiv:1705.07638
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9.

Study of the weak annihilation contributions in charmless Bs→VV decays
/ Chang, Qin ; Li, Xiaonan ; Li, XinQiang ; Sun, Junfeng
In this paper, in order to probe the spectatorscattering and weak annihilation contributions in charmless Bs→VV (where V stands for a light vector meson) decays, we perform the χ2 analyses for the endpoint parameters within the QCD factorization framework, under the constraints from the measured B¯s→ ρ0ϕ , ϕK∗0 , ϕϕ and K∗0K¯∗0 decays. [...]
Published in EPJC 77 (2017) 415
10.1140/epjc/s1005201749809
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10.

Scalar contributions to b → c ( u ) τν transitions
/ Celis, Alejandro ; Jung, Martin ; Li, XinQiang ; Pich, Antonio
We perform a comprehensive analysis of scalar contributions in b→cτν transitions including the latest measurements of R(D(⁎)) , the q2 differential distributions in B→D(⁎)τν , the τ polarization asymmetry for B→D⁎τν , and the bound derived from the total width of the Bc meson. [...]
Published in Physics letters B (2017)
10.1016/j.physletb.2017.05.037
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