Jiangshan Lan
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View article: Strange mesons with one dynamical gluon: A light-front approach
Strange mesons with one dynamical gluon: A light-front approach Open
We obtain the mass spectra of strange mesons using a light-front quantized Hamiltonian with Quantum Chromodynamics (QCD) input, incorporating quark-antiquark and quark-antiquark-gluon Fock components, along with a three-dimensional confine…
View article: Towards a first principles light-front Hamiltonian for the nucleon
Towards a first principles light-front Hamiltonian for the nucleon Open
We solve the nucleon's wave functions from the eigenstates of the light-front quantum chromodynamics Hamiltonian for the first time, using a fully relativistic and nonperturbative approach based on light-front quantization, without an expl…
View article: Basis light-front quantization for the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Σ</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:math> baryons
Basis light-front quantization for the and baryons Open
Within the basis light-front quantization framework, we compute the masses and light-front wave functions of the Λb baryon and its isospin triplet counterparts Σb+, Σb0, and Σb− using a light-front effective Hamiltonian in the leading Fock…
View article: Basis light-front quantization: Advancing a first principles approach for the nucleon
Basis light-front quantization: Advancing a first principles approach for the nucleon Open
We present our recent progress in applying the basis light-front quantization approach to investigate the nucleon's structure. We solve its wave functions from the eigenstates of the light-front QCD Hamiltonian using a fully relativistic, …
View article: Strange mesons with one dynamical gluon: A light-front approach
Strange mesons with one dynamical gluon: A light-front approach Open
We obtain the mass spectra of strange mesons using a light-front quantized Hamiltonian with Quantum Chromodynamics (QCD) input, incorporating quark-antiquark and quark-antiquark-gluon Fock components, along with a three-dimensional confine…
View article: Towards a first principles light-front Hamiltonian for the nucleon
Towards a first principles light-front Hamiltonian for the nucleon Open
We solve the nucleon's wave functions from the eigenstates of the light-front quantum chromodynamics Hamiltonian for the first time, using a fully relativistic and nonperturbative approach based on light-front quantization, without an expl…
View article: Pion to photon transition form factor: Beyond valence quarks
Pion to photon transition form factor: Beyond valence quarks Open
We investigate the singly virtual transition form factor (TFF) for the $π^0\toγ^*γ$ process in the space-like region using the hard-scattering formalism within the Basis Light-Front Quantization (BLFQ) framework. This form factor is expres…
View article: Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach
Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach Open
Within the Basis Light-Front Quantization framework, we systematically investigate the subleading twist (twist-3) transverse-momentum-dependent parton distribution functions (TMDs) of the proton beyond the Wandzura-Wilczek (WW) approximati…
View article: Gluonic contributions to the pion parton distribution functions
Gluonic contributions to the pion parton distribution functions Open
We investigate the role of a dynamical gluon in the pion within the Basis Light-Front Quantization (BLFQ) framework and compare it with the solution of the Minkowski space Bethe-Salpeter equation (BSE), focusing on contributions beyond the…
View article: Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach
Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach Open
Within the Basis Light-Front Quantization framework, we systematically investigate the subleading twist (twist-3) transverse-momentum-dependent parton distribution functions (TMDs) of the proton beyond the Wandzura-Wilczek (WW) approximati…
View article: Quark and gluon distributions in ρ-meson from basis light-front quantization
Quark and gluon distributions in ρ-meson from basis light-front quantization Open
We solve for the ρ-meson's wave functions from a light-front QCD Hamiltonian determined for its constituent quark-antiquark and quark-antiquark-gluon Fock components, with a three-dimensional confinement using basis light-front quantizatio…
View article: Quark and gluon distributions in $ρ$-meson from basis light-front quantization
Quark and gluon distributions in $ρ$-meson from basis light-front quantization Open
We solve for the $ρ$-meson's wave functions from a light-front QCD Hamiltonian determined for its constituent quark-antiquark and quark-antiquark-gluon Fock components, with a three-dimensional confinement using basis light-front quantizat…
View article: Transverse structure of the pion beyond leading twist with basis light-front quantization
Transverse structure of the pion beyond leading twist with basis light-front quantization Open
View article: Transverse structure of the pion beyond leading twist with basis light-front quantization
Transverse structure of the pion beyond leading twist with basis light-front quantization Open
We investigate the twist-$3$ transverse-momentum-dependent parton distribution functions (TMDs) of the pion with basis light-front quantization. The twist-3 TMDs are not independent and can be decomposed into twist-$2$ and genuine twist-$3…
View article: Hadron structure from basis light-front quantization
Hadron structure from basis light-front quantization Open
We present our recent progress in applying basis light-front quantization approach to investigate the structure of the light mesons and the nucleon.
View article: Valence quark distributions of light mesons in light-cone quark model
Valence quark distributions of light mesons in light-cone quark model Open
In order to investigate the tomographical structure of light pseudoscalar mesons, particularly, pion and kaon, we study the valence quark distribution function (PDF) and the generalized parton distributions (GPDs) using light-cone quark mo…
View article: Report on 2109.12921v1
Report on 2109.12921v1 Open
We present our recent progress in applying basis light-front quantization approach to investigate the structure of the light mesons and the nucleon.
View article: Report on scipost_202107_00015v1
Report on scipost_202107_00015v1 Open
In order to investigate the tomographical structure of light pseudoscalar mesons, particularly, pion and kaon, we study the valence quark distribution function (PDF) and the generalized parton distributions (GPDs) using light-cone quark mo…
View article: Light mesons with one dynamical gluon within basis light-front quantization
Light mesons with one dynamical gluon within basis light-front quantization Open
We investigate the structure of the light meson with one dynamical gluon from the light-front QCD Hamiltonian, determined for their constituent quark-antiquark and quark-antiquark-gluon Fock sectors, together with a three-dimensional confi…
View article: Light mesons with one dynamical gluon on the light front
Light mesons with one dynamical gluon on the light front Open
View article: Nucleon structure from basis light-front quantization
Nucleon structure from basis light-front quantization Open
We produce the light-front wave functions (LFWFs) of the nucleon from a basis light-front ap- proach in the leading Fock sector representation. We solve for the mass eigenstates from a light-front effective Hamiltonian, which includes a co…
View article: Hadron structure from basis light-front quantization
Hadron structure from basis light-front quantization Open
We present our recent progress in applying basis light-front quantization approach to investigate the structure of the light mesons and the nucleon.
View article: Valence quark distributions of light mesons in light-cone quark model
Valence quark distributions of light mesons in light-cone quark model Open
In order to investigate the tomographical structure of light pseudoscalar mesons, particularly, pion and kaon, we study the valence quark distribution function (PDF) and the generalized parton distributions (GPDs) using light-cone quark mo…
View article: Recent progress in basis light-front quantization
Recent progress in basis light-front quantization Open
Basis Light-front Quantization (BLFQ) is a nonperturbative approach to quantum field theory. Here, in this paper, we report our recent progress in applying BLFQ to the positronium system in QED and to the meson and the baryon system in QCD…
View article: Three-dimensional imaging of proton in basis light-front quantization
Three-dimensional imaging of proton in basis light-front quantization Open
Here, we employ an effective Hamiltonian that includes the transverse and longitudinal confinement and the one-gluon exchange interaction with fixed coupling constant. By solving the eigenvalue equation in basis light-front quantization (B…
View article: Proton structure from a light-front Hamiltonian
Proton structure from a light-front Hamiltonian Open
We obtain the electromagnetic form factors, the axial form factor, and the parton distribution functions of the proton from the eigenstates of a light-front effective Hamiltonian in the leading Fock representation suitable for low-momentum…
View article: Tomography of light mesons in the light-cone quark model
Tomography of light mesons in the light-cone quark model Open
We investigate the tomographical structure of the pion and kaon in the light-cone quark model. In particular, we study the parton distribution amplitude (PDA) of the pion and kaon. We obtain the parton distribution function (PDF) and the g…
View article: Parton distribution functions of heavy mesons on the light front
Parton distribution functions of heavy mesons on the light front Open
The parton distribution functions (PDFs) of heavy mesons are evaluated from their light-front wave functions, which are obtained from a basis light-front quantization in the leading Fock sector representation. We consider the mass eigensta…
View article: Pion-nucleus induced Drell-Yan cross section in models inspired by light-front holography
Pion-nucleus induced Drell-Yan cross section in models inspired by light-front holography Open
We evaluate the cross section for the pion induced Drell-Yan process in two different models of the pion light-front wave function, inspired by light-front holographic approaches. We obtain the valence quark distribution functions in those…
View article: Basis light-front quantization approach to nucleon
Basis light-front quantization approach to nucleon Open
We obtain the light-front wavefunctions for the nucleon in the valence quark Fock space from an effective Hamiltonian, which includes the transverse and longitudinal confinement and the one-gluon exchange interaction with fixed coupling. T…