Couplings between the ρ and D- and D*- mesons

El-Bennich, Bruno Y Paracha, M. Ali Y Roberts, Craig D. Y Rojas, Eduardo (2017) Couplings between the ρ and D- and D*- mesons. Physical Review D, 95 (3). pp. 1-8. ISSN 2470-0010

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Resumen

We compute couplings between the ρ-meson and D- and D∗-mesons –D(∗) ρ D(∗)– that are relevant to phenomenological meson-exchange models used to analyse nucleon–D-meson scattering and explore the possibility of exotic charmed nuclei. Our frame work is built from elements constrained by Dyson-Schwinger equation studies in QCD, and therefore e xpresses a simultaneous description of light- and heavy-quarks and the states they constitute. We find that all interactions, including the three independent D∗ ρ D∗ couplings, differ markedly amongst themselves in strength a nd also in range, as measured by their evolution with ρ-meson virtuality. As a consequence, it appears that one should be cautious in using a single coupling streng th or parametrization for the study of interactions between D(∗) -mesons and matter.

Tipo de Elemento:	Artículo
Asunto:	Q Ciencias > QC Physics
Division:	Facultad de Ciencias Exactas y Naturales > Programa de Física > Productividad
Depósito de Usuario:	Prof. Eduardo Rojas
Fecha Deposito:	23 Abr 2019 21:47
Ultima Modificación:	23 Abr 2019 21:47
URI:	http://sired.udenar.edu.co/id/eprint/5122

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