8–12 Jul 2024
Facultat de Biologia, Universitat de Barcelona
Europe/Madrid timezone

Heavy-light Pseudoscalar Mesons: Light-Front Wave Functions and Generalized Parton Distributions

8 Jul 2024, 16:55
20m
Aula M3 (Facultat de Biologia)

Aula M3

Facultat de Biologia

Contributed talk C. Hadron Structure

Speaker

Jorge Segovia (University Pablo de Olavide, Seville)

Description

The internal structure of all lowest-lying pseudo-scalar mesons with heavy-light quark content is studied in detail using an algebraic model that has been applied recently, and successfully, to the same physical observables of pseudo-scalar and vector mesons with hidden-flavor quark content, from light to heavy quark sectors. The algebraic model consists on constructing simple and evidencebased ans¨atze of the meson’s Bethe-Salpeter amplitude (BSA) and quark’s propagator in such a way that the Bethe-Salpeter wave function (BSWF) can then be readily computed algebraically. Its subsequent projection onto the light front yields the light front wave function (LFWF) whose form allows us a simple access to the valence-quark Parton Distribution Amplitude (PDA) by integrating over the transverse momentum squared. We exploit our current knowledge of the PDAs of lowest-lying pseudo-scalar heavy-light mesons to compute their Generalized Parton Distributions (GPDs) through the overlap representation of LFWFs. From these three dimensional knowledge, different limits/projections lead us to deduce the related Parton Distribution functions (PDFs), Electromagnetic Form Factors (EFFs), and Impact parameter space GPDs (IPS-GPDs). When possible, we make explicit comparisons with available experimental results and earlier theoretical
predictions

session C. Hadron Structure

Primary authors

Bilgai Almeida Zamora (Universidad de Sonora/Universidad Pablo de Olavide) Jorge Segovia (University Pablo de Olavide, Seville) Dr Jesús Javier Cobos Martínez (Universidad de Sonora) Dr Adnan Bashir (Universidad de Michoacan) Dr Khépani Raya (Universidad de Huelva) Dr José Rodríguez Quintero (Universidad de Huelva)

Presentation materials