Work

Heavy flavor-asymmetric pseudoscalar mesons on the light front

Year: 2024

Type: article

Abstract: We extract the leading Fock-state light front wave functions of heavy flavor-asymmetric pseudoscalar mesons D , B , and B c from their Bethe-Salpeter wave functions, based on the Dyson-Schwinger equations approach. We then study their leading-twist parton distribution amplitudes, generalized parton distribution functions, and transverse momentum-dependent parton distributions. The spatial distributions of the quark and antiquark on the transverse plane are presented, along with their charge and energy distributions on the light front. We find that in the considered mesons, the heavier quarks carry most of the longitudinal momentum fraction, resulting in narrow x distributions, while the lighter quarks play an active role in shaping the transverse distributions in both spatial and momentum space, exhibiting a duality that embodies characteristics of both light mesons and heavy quarkonium. Published by the American Physical Society 2024

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.110.094010

Authors: Chao Shi, Pengfei Liu, Yi-Lun Du, Wenbao Jia

Institutions: Nanjing University of Aeronautics and Astronautics, Shandong Institute of Advanced Technology

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Taishan Scholar Foundation of Shandong Province, Young Scientists Fund, Fundamental Research Funds for the Central Universities

Awards: G2057231674, G8401684199, G8884112831