A5074744660- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Nuclear physics research studies
- Stochastic processes and financial applications
- Big Data Technologies and Applications
- Particle Detector Development and Performance
- Quantum many-body systems
- Theoretical and Computational Physics
- Random Matrices and Applications
- Dark Matter and Cosmic Phenomena
- Parallel Computing and Optimization Techniques
- Advanced Mathematical Physics Problems
- Probability and Risk Models
- Physics of Superconductivity and Magnetism
Guizhou Minzu University
2015-2025
Institute of High Energy Physics
2025
Chinese Academy of Sciences
2025
Chongqing University
2013-2022
Institute of Theoretical Physics
2015
Abstract The measurements in $$b\rightarrow s$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>b</mml:mi> <mml:mo>→</mml:mo> <mml:mi>s</mml:mi> </mml:mrow> </mml:math> penguin-dominated decays are widely recognized as a powerful test for searching New Physics by studying the deviation from theoretical estimations within Standard Model. We examine final-state rescattering effects on decay $$B_s\rightarrow K^{*0}\bar{K}^{*0}$$ <mml:msub> <mml:mi>B</mml:mi>...
A valid prediction for a physical observable from quantum field theory should be independent of the choice renormalization scheme--this is primary requirement group invariance (RGI). Satisfying scheme challenging problem perturbative QCD (pQCD), since truncated perturbation series does not automatically satisfy requirements group. In previous review, we provided general introduction to various scale setting approaches suggested in literature. As step forward, present discussion depth two...
In this paper, we study the pion leading-twist distribution amplitude $\phi_{2;\pi}(x,\mu)$ by improving traditional light-cone harmonic oscillator model within reconstruction of function $\varphi_{2;\pi}(x)$. order to constraining parameters, calculate its moments $\langle\xi^n\rangle_{2;\pi}|_\mu$ in framework QCD background field theory sum rule (BFTSR) up $10^{\rm th}$ order. Considering fact that $0^{\rm moment $\langle\xi^0\rangle_{2;\pi}|_\mu$ cannot be normalized, suggest a more...
In this paper, we make a detailed discussion on the $\eta$ and $\eta'$-meson leading-twist light-cone distribution amplitude $\phi_{2;\eta^{(\prime)}}(u,\mu)$ by using QCD sum rules approach under background field theory. Taking both non-perturbative condensates up to dimension-six NLO corrections perturbative part, its first three moments $\langle\xi^n_{2;\eta^{(\prime)}}\rangle|_{\mu_0} $ with $n = (2,4,6)$ at initial scale $\mu_0 1$ GeV can be determined. e.g....
Abstract In this paper, we investigate the rare decay $$B^0\rightarrow K_0^*(1430)\ell ^+\ell ^-$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mi>B</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mo>∗</mml:mo> </mml:msubsup> <mml:mo>(</mml:mo> <mml:mn>1430</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> <mml:mi>ℓ</mml:mi> <mml:mo>+</mml:mo> <mml:mo>-</mml:mo> </mml:math> with $$\ell =(e,\mu ,\tau )$$...
Abstract In this paper, we carry on an investigation of the semileptonic decays $B_s\to D_s^*\ell \bar\nu_{\ell}$. Firstly, derive moments $D_s^*$-meson longitudinal leading-twist light-cone distribution amplitude (LCDA) based QCD sum rules within background field theory framework. Considering contributions vacuum condensates up to dimension-six, its first ten non-zero $\xi$-moments at initial scale $\mu_0 =1.3~{\rm GeV}$ are $\langle \xi^{\|, 1}_{2; D_s^*} \rangle|_{\mu_0} =...
Abstract In this paper, we fit the $$B\rightarrow D$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>B</mml:mi> <mml:mo>→</mml:mo> <mml:mi>D</mml:mi> </mml:mrow> </mml:math> vector transition form factor (TFF) by using data measured BABAR and Belle Collaborations within Monte Carlo (MC) method. Meanwhile, TFF is also calculated QCD light-cone sum rules approach (LCSRs) right-handed chiral current correlation function. TFF, D -meson leading-twist distribution...
In the paper, we present a detailed discussion on ${\mathrm{\ensuremath{\Xi}}}_{cc}$ production at fixed-target experiment LHC (After@LHC). The doubly charmed baryon is produced via channel $\text{proton}+\phantom{\rule{0ex}{0ex}}\text{proton}\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Xi}}}_{cc}+X$. estimating its hadroproduction, discuss three dominant subprocesses, e.g., $g+g\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Xi}}}_{cc}+\overline{c}+\overline{c}$,...
Abstract The $$\eta ^{(\prime )}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>η</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mo>′</mml:mo><mml:mo>)</mml:mo></mml:mrow></mml:msup></mml:math> -mesons in the quark-flavor basis are mixtures of two mesonic states $$|\eta _{q}\rangle =|{\bar{u}} u+{\bar{d}} d\rangle /\sqrt{2}$$...
Abstract Motivated by our previous study [Phys. Rev. D 104(1), 016021 (2021)] on the pionic leading-twist distribution amplitude (DA), we revisit ρ -meson longitudinal DA in this study. A model proposed Chang based Dyson-Schwinger equations is adopted to describe behavior of . However, ξ -moments are calculated with QCD sum rules framework background field theory. The rule formulas for these moments improved. More accurate values first five nonzero at typical scale given, e.g., , and By...
In the present paper, we study properties of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>ϕ</a:mi></a:math>-meson longitudinal leading-twist light-cone distribution amplitude <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:msubsup><c:mrow><c:mi>ϕ</c:mi></c:mrow><c:mrow><c:mn>2</c:mn><c:mo>;</c:mo><c:mi>ϕ</c:mi></c:mrow><c:mrow><c:mo stretchy="false">∥</c:mo></c:mrow></c:msubsup><c:mo...
In this paper, we fit the $B\to D$ vector transition form factor (TFF) by using data measured BABAR and Belle Collaborations within Monte Carlo (MC) method. Meanwhile, TFF is also calculated QCD light-cone sum rules approach (LCSRs) right-handed chiral current correlation function. which, $D$-meson leading-twist distribution amplitude (LCDA) serves as crucial input parameter reconstructed with harmonic oscillator model where its longitudinal behavior primarily determined model-free...
In the paper, we derive <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>ξ</a:mi></a:math> moments <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mo stretchy="false">⟨</c:mo><c:msubsup><c:mi>ξ</c:mi><c:mrow><c:mn>2</c:mn><c:mo>;</c:mo><c:msub><c:mi>b</c:mi><c:mn>1</c:mn></c:msub></c:mrow><c:mrow><c:mi>n</c:mi><c:mo>;</c:mo><c:mo stretchy="false">∥</c:mo></c:mrow></c:msubsup><c:mo stretchy="false">⟩</c:mo></c:math> of longitudinal...
In the paper, we conduct a detailed investigation of rare decay processes charged meson, specifically <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>B</a:mi><a:mo>+</a:mo></a:msup><a:mo stretchy="false">→</a:mo><a:msup><a:mi>K</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mo>ℓ</a:mo><a:mo>+</a:mo></a:msup><a:msup><a:mo>ℓ</a:mo><a:mo>−</a:mo></a:msup></a:math> with <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
In this paper, we calculate the $B\to D$ transition form factors (TFFs) within light-cone sum rules (LCSR) and predict ratio $\mathcal{R}(D)$. More accurate $D$-meson distribution amplitudes (DAs) are essential to get a more theoretical prediction. We construct new model for twist-3 DAs $\phi^p_{3;D}$ $\phi^\sigma_{3;D}$ based on QCD under background field theory their moments as have done constructing leading-twist DA $\phi_{2;D}$. As an application, observe that contributions sizable in...
In the present paper, we make a detailed study on doubly heavy baryon photoproduction in future e + − International Linear Collider (ILC). The baryons Ξ cc , bc and bb are produced via channel $$ \gamma \to {\Xi}_{QQ\prime }+\overline{Q}^{\prime }+\overline{Q} where Q Q′ stand for c or b quark, respectively. As QQ ′-baryon production, it shall first generate (QQ′)[n]-diquark then form final fragmentation, [n] stands color- spin- configurations (QQ′)-diquark states. According to...
Abstract Based on the scenario that $$K_0^*(1430)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mn>0</mml:mn> <mml:mo>∗</mml:mo> </mml:msubsup> <mml:mo>(</mml:mo> <mml:mn>1430</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> is viewed as ground state of $$s\bar{q}$$ <mml:mi>s</mml:mi> <mml:mover> <mml:mi>q</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> or $$q\bar{s}$$ , we study leading-twist distribution amplitude (DA) $$\phi...
We study the pion leading-twist distribution amplitude (DA) within framework of SVZ sum rules under background field theory. To improve accuracy rules, we expand both quark propagator and vertex $(z\cdot \tensor{D})^n$ correlator up to dimension-six operators in The for DA moments are obtained, which all condensates have been taken into consideration. Using obtain $\left<\xi^2\right>|_{\rm 1\;GeV} = 0.338 \pm 0.032$, $\left<\xi^4\right>|_{\rm 0.211 0.030$ $\left<\xi^6\right>|_{\rm 0.163...
The measured branching ratio of the $D$ meson semileptonic decay $D \to \rho e^+ \nu_e$, which is based on $0.82~{\rm fb^{-1}}$ CLEO data taken at peak $\psi(3770)$ resonance, disagrees with traditional SVZ sum rules analysis by about three times. In paper, we show that this discrepancy can be eliminated applying QCD light-cone (LCSR) approach to calculate $D\to \rho$ transition form factors $A_{1,2}(q^2)$ and $V(q^2)$. After extrapolating LCSR predictions these TFFs whole $q^2$-region,...
In this paper, we calculate the ratio of Cabibbo-Kobayashi-Maskawa matrix elements, $|V_{ub}|/|V_{cb}|$, based on semileptonic decay $B_s^0\to K^-\mu^+\nu_\mu$. Its key component, $B_s\to K$ transition form factor $f^{B_s\to K}_+(q^2)$, is studied within QCD light-cone sum rules approach by using a chiral correlator. The derived K}_+(q^2)$ dominated leading-twist part, and to improve its precision, construct new model for kaon distribution amplitude $\phi_{2;K}(x,\mu)$, whose parameters are...
Due to the significant difference between experimental measurements and theoretical predictions of standard model (SM) for value $\mathcal{R}(D)$ semileptonic decay $B\to D\ell\bar{\nu}_{\ell}$, people speculate that it may be evidence new physics beyond SM. Usually, $D$-meson twist-2, 3 distribution amplitudes (DAs) $\phi_{2;D}(x,\mu)$, $\phi_{3;D}^p(x,\mu)$ $\phi_{3;D}^\sigma(x,\mu)$ are main error sources when using perturbative QCD factorization light-cone sum rules study...
We revisit the $\rho$-meson longitudinal leading-twist distribution amplitude (DA) $\phi_{2;\rho}^\|$ by using QCD sum rules approach within background field theory. To improve accuracy of for its moments $\langle\xi_{n;\rho}^\|\rangle$, we include next-to-leading order correction to perturbative part and keep all non-perturbative condensates up dimension-six consistently The first two read $\langle \xi_{2;\rho}^\| \rangle|_{1{\rm GeV}} = 0.241(28)$ \xi_{4;\rho}^\| 0.109(10)$, indicating a...