Journal Article

GSI-2026-00270

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Heavy-light mesons from a flavour-dependent interaction

Gao, F. ; Miramontes, A. S. ; Papavassiliou, J. (Corresponding author)GSI* ; Pawlowski, J. M.GSI*

2025
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.physletb.2025.139384  doi:10.15120/GSI-2026-00270

Report No.: 2411.19680

Abstract: We introduce a new framework for the physics of heavy-light mesons, whose key element is the effective incorporation of flavour-dependent contributions into the corresponding bound-state and quark gap equations. These terms originate from the fully-dressed quark-gluon vertices appearing in the kernels of these equations, and provide a natural distinction between “light” and “heavy” quarks. In this approach, only the classical form factor of the quark-gluon vertex is retained, and is evaluated in the so-called “symmetric” configuration. The standard Slavnov-Taylor identity links this form factor to the quark wave-function, allowing for the continuous transition from light to heavy quarks through the mere variation of the current quark mass in the gap equation. The method is used to compute the masses and decay constants of specific pseudoscalars and vector heavy-light systems, showing good overall agreement with both experimental data and lattice simulations.

Note: Published by Elsevier B.V. Funded by SCOAP³. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Contributing Institute(s):

1. ExtreMe Matter Institute, EMMI (EXM)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
2. DFG project G:(GEPRIS)273811115 - SFB 1225: Isolierte Quantensysteme und Universalität unter extremen Bedingungen (ISOQUANT) (273811115) (273811115)
3. DFG project G:(GEPRIS)390900948 - EXC 2181: STRUKTUREN: Emergenz in Natur, Mathematik und komplexen Daten (390900948) (390900948)
4. DFG project G:(GEPRIS)491382106 - Open-Access-Publikationskosten / 2025-2027 / GSI Helmholtzzentrum für Schwerionenforschung (491382106) (491382106)

Experiment(s):

1. no experiment theory work (theory)

Appears in the scientific report 2025

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Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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