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Parton distribution functions and transverse momentum dependence of heavy mesons

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Author(s):
Serna, Fernando E. ; El-Bennich, Bruno ; Krein, Gastao
Total Authors: 3
Document type: Journal article
Source: PHYSICAL REVIEW D; v. 110, n. 11, p. 8-pg., 2024-12-23.
Abstract

The leading Fock-state light-front wave functions of heavy quarkonia and D and B mesons are obtained from the projections of their Bethe-Salpeter wave functions on the light front. We compute their leadingtwist time-reversal even transverse momentum distributions and parton distribution functions. Mirroring the behavior of parton distribution amplitudes, the support of both distributions is increasingly narrower and shifted toward larger x as a function of the meson mass. The dependence of x and k2 perpendicular to of the transverse distributions does not factorize into separate functions, and their falloff with k2 perpendicular to is much slower than that of light mesons. (AU)

FAPESP's process: 23/00195-8 - Hadron's constituent structure and tomography
Grantee:Bruno Omar El Bennich
Support Opportunities: Regular Research Grants
FAPESP's process: 18/25225-9 - São Paulo Research and Analysis Center
Grantee:Sergio Ferraz Novaes
Support Opportunities: Special Projects