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BLFQ Collaboration

As seen in: Physical Review B
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Articles by BLFQ Collaboration

Twist-3 generalized parton distribution for the proton from basis light-front quantization

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By BLFQ Collaboration, Ziqi Zhang, Zhi Gang Hu
| Physical Review B
Ziqi Zhang1,2,3,*, Zhi Hu1,2,3,†, Siqi Xu1,2,3,‡, Chandan Mondal1,2,3,§, Xingbo Zhao1,2,3,∥, and James P.
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Massless and massive photons within basis light-front quantization

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By BLFQ Collaboration, Sreeraj Nair, Chandan Mondal
| Physical Review B
We compute the structure function, transverse momentum dependent parton distributions (TMDs), and generalized parton distributions (GPDs) for the photon from the light-front quantum electrodynamics (QED) Hamiltonian, determined for its constituent bare photon and electron-positron Fock components within the basis light-front quantization framework. While the structure function and GPDs align well with expectations, some oscillatory behavior in the TMDs emerges as a finite-basis artifact.
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Quark and gluon spin and orbital angular momentum in the proton

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By BLFQ Collaboration, Siqi Xu, Chandan Mondal
| Physical Review B
Siqi Xu1,2,*, Chandan Mondal1,2,†, Xingbo Zhao1,2,‡, Yang Li3,§, and James P.
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Transverse momentum structure of strange and charmed baryons: A light-front Hamiltonian approach

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By BLFQ Collaboration, CSR Physics, Zhimin Zhu
| Physical Review B
Abstract Under the basis light-front quantization framework, we investigate the leading-twist transverse-momentum-dependent parton distribution functions (TMDs) for Λ and Λc baryons, the spin-1/2 composite systems consisting of two light quarks (u and d) and a s/c quark. We evaluate the TMDs using the overlaps of the light-front wave functions in the leading Fock sector, which are obtained by solving the light-front eigenvalue equation.
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Nucleon structure from basis light-front quantization

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By Siqi Xu, Chandan Mondal, BLFQ Collaboration
| Physical Review B
Abstract We produce the light-front wave functions (LFWFs) of the nucleon from a basis light-front approach in the leading Fock-sector representation. We solve for the mass eigenstates from a light-front effective Hamiltonian, which includes a confining potential adopted from light-front holography in the transverse direction, a longitudinal confinement, and a one-gluon exchange interaction with fixed coupling.
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