Abstract
Using the framework of the Covariant Spectator Theory, we calculated the masses and vertex functions of heavy and heavy-light mesons, described as quark-antiquark bound states. Our interaction kernel consists of an adjustable mixture of Lorentz scalar, pseudoscalar, and vector linear confining interactions, together with a one-gluon-exchange kernel. We performed a series of fits to the heavy and heavy-light meson spectrum, and we discuss what conclusions can be drawn from it, especially about the Lorentz structure of the kernel.
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Acknowledgements
We thank Fundação para a Ciência e a Tecnologia (FCT) for support under grants CFTP-FCT (UID/FIS/00777/2013), SFRH/BPD/100578/2014, and SFRH/BD/92637/2013.
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Stadler, A., Leitão, S., Peña, M.T., Biernat, E.P. (2020). Masses and Structure of Heavy Quarkonia and Heavy-Light Mesons in a Relativistic Quark Model. In: Orr, N., Ploszajczak, M., Marqués, F., Carbonell, J. (eds) Recent Progress in Few-Body Physics. FB22 2018. Springer Proceedings in Physics, vol 238. Springer, Cham. https://doi.org/10.1007/978-3-030-32357-8_116
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DOI: https://doi.org/10.1007/978-3-030-32357-8_116
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