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We present the generalized parton distributions (GPDs) for the valence quarks of the pion and the kaon in both momentum space and position space within the basis light-front quantization framework. These GPDs are obtained from the…

高能物理 - 唯象学 · 物理学 2021-12-16 Lekha Adhikari , Chandan Mondal , Sreeraj Nair , Siqi Xu , Shaoyang Jia , Xingbo Zhao , James P. Vary

We investigate the quark Wigner distributions of the pion to reveal the multidimensional picture of pion. We have used the spin improved wave functions of pion deduced from the light-front holographic model of mesons. By using the…

高能物理 - 唯象学 · 物理学 2020-07-15 Navdeep Kaur , Harleen Dahiya

We study the generalized parton distributions (GPDs) of pion for non-zero skewness by considering the leading $| q \bar{q} \rangle$ Fock state component. Inspired from AdS/QCD light-front wave functions, we calculate the pion GPDs. By…

高能物理 - 唯象学 · 物理学 2018-07-10 Navdeep Kaur , Narinder Kumar , Chandan Mondal , Harleen Dahiya

Within the basis light-front quantization framework, we systematically investigate the unpolarized and longitudinally polarized double parton distributions (DPDs) of quarks inside the proton. We utilize the light-front wave functions of the…

高能物理 - 唯象学 · 物理学 2025-07-11 Tian-Cai Peng , Zhi Hu , Sreeraj Nair , Siqi Xu , Xiang Liu , Chandan Mondal , Xingbo Zhao , James P. Vary

Nucleon and pion electromagnetic form factors are evaluated in the spacelike region within a light-front constituent quark model, where eigenfunctions of a mass operator, reproducing a large set of hadron energy levels, are adopted and…

核理论 · 物理学 2009-10-28 F. Cardarelli , E. Pace , G. Salme' , S. Simula

We present a self-consistent light-front quark model (LFQM) analysis of the pion's gravitational form factors (GFFs), incorporating the Bakamjian-Thomas (BT) construction consistently throughout the framework. By uniformly applying the BT…

高能物理 - 唯象学 · 物理学 2025-07-14 Yongwoo Choi , Hyeon-Dong Son , Ho-Meoyng Choi

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…

高能物理 - 唯象学 · 物理学 2024-08-22 Siqi Xu , Yiping Liu , Chandan Mondal , Jiangshan Lan , Xingbo Zhao , Yang Li , James P. Vary

We study the electromagnetic structure of the pion in terms of the quantum cromodynamic~(QCD) model on the Breit-frame. We calculated the observables, such as the electromagnetic form factor. The priori to have a calculation covariant need…

高能物理 - 唯象学 · 物理学 2016-05-17 Clayton Santos Mello , J. P. B. C. de Melo , T. Frederico

We explore the possibility to construct higher-twist parton distributions in a nucleon at some low reference scale from convolution integrals of the light-cone wave functions (WFs). To this end we introduce simple models for the…

高能物理 - 唯象学 · 物理学 2011-07-08 V. M. Braun , T. Lautenschlager , A. N. Manashov , B. Pirnay

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…

核理论 · 物理学 2020-07-22 Jiangshan Lan , Chandan Mondal , Meijian Li , Yang Li , Shuo Tang , Xingbo Zhao , James P. Vary

We study the unpolarized and the helicity dependent generalized parton distributions (GPDs) for the valence quarks of the proton in both momentum space and position space within the basis light-front quantization (BLFQ) framework. The GPDs…

高能物理 - 唯象学 · 物理学 2022-06-01 Yiping Liu , Siqi Xu , Chandan Mondal , Xingbo Zhao , James P. Vary

A future Electron-Ion Collider will enable the gluon contributions to the gravitational form factors of the proton to be constrained experimentally for the first time. Here, the first calculation of these form factors from lattice Quantum…

高能物理 - 格点 · 物理学 2019-01-30 P. E. Shanahan , W. Detmold

Two-parton correlations in the pion are investigated in terms of double parton distribution functions. A Poincar\'e covariant Light-Front framework has been adopted. As non perturbative input, the pion wave function obtained within the…

高能物理 - 唯象学 · 物理学 2018-10-17 Matteo Rinaldi , Sergio Scopetta , Marco Traini , Vicente Vento

The gravitational form factors (GFFs) of pions are calculated from a top-down holographic quantum chromodynamics (QCD) approach with momentum transfer dependence for the first time. It is important because the GFFs of hadrons have…

高能物理 - 唯象学 · 物理学 2024-11-13 Daisuke Fujii , Akihiro Iwanaka , Mitsuru Tanaka

We investigate the nucleon and pion gluon distribution functions in the framework of holographic QCD, focusing on the small Bjorken x region. Based on an approximate relation, the gluon distributions are extracted from structure functions…

高能物理 - 唯象学 · 物理学 2020-06-24 Akira Watanabe , Takahiro Sawada , Mei Huang

Basis Light-front Quantization (BLFQ) has recently been developed as a promising nonperturbative technique. Using BLFQ, we investigate the Generalized Parton Distributions (GPDs) in a nonperturbative framework for a dressed electron in QED.…

高能物理 - 唯象学 · 物理学 2014-06-11 D. Chakrabarti , X. Zhao , H. Honkanen , R. Manohar , P. Maris , J. P. Vary

We investigate the Generalized Parton Distributions (GPDs) in impact parameter space using the explicit light front wave functions (LFWFs) for the two-particle Fock state of the electron in QED. The Fourier transform (FT) of the GPDs gives…

高能物理 - 唯象学 · 物理学 2015-06-23 Narinder Kumar , Harleen Dahiya

Describing hadronic structure is one of the most intriguing problems in physics. In this respect, generalized parton distributions (GPDs) constitute an outstanding tool, allowing to draw "three dimensional pictures" of hadron's inside.…

We investigate the leading twist generalized transverse momentum dependent parton distributions (GTMDs) of the unpolarized and longitudinally polarized gluons in the nucleon. We adopt a light-front gluon-triquark model for the nucleon…

高能物理 - 唯象学 · 物理学 2024-02-28 Chentao Tan , Zhun Lu

We calculate the cross section of a pion diffraction dissociation in two jets with large transverse momenta originating from a hard gluon exchange between the pion constituents. To the leading logarithmic accuracy (in energy), the…

高能物理 - 唯象学 · 物理学 2009-11-07 V. M. Braun , D. Yu. Ivanov , A. Schaefer , L. Szymanowski