Unquenching the Quark Model in a Nonperturbative Scheme
Joint Authors
Ortega, Pablo G.
Entem, David R.
Fernández, Francisco
Source
Advances in High Energy Physics
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-02
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
In recent years, the discovery in quarkonium spectrum of several states not predicted by the naive quark model has awakened a lot of interest.
A possible description of such states requires the enlargement of the quark model by introducing quark-antiquark pair creation or continuum coupling effects.
The unquenching of the quark models is a way to take these new components into account.
In the spirit of the Cornell Model, this is usually done by coupling perturbatively a quark-antiquark state with definite quantum numbers to the meson-meson channel with the closest threshold.
In this work we present a method to coupled quark-antiquark states with meson-meson channels, taking into account effectively the nonperturbative coupling to all quark-antiquark states with the same quantum numbers.
The method will be applied to the study of the X(3872) resonance and a comparison with the perturbative calculation will be performed.
American Psychological Association (APA)
Ortega, Pablo G.& Entem, David R.& Fernández, Francisco. 2019. Unquenching the Quark Model in a Nonperturbative Scheme. Advances in High Energy Physics،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1118241
Modern Language Association (MLA)
Ortega, Pablo G.…[et al.]. Unquenching the Quark Model in a Nonperturbative Scheme. Advances in High Energy Physics No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1118241
American Medical Association (AMA)
Ortega, Pablo G.& Entem, David R.& Fernández, Francisco. Unquenching the Quark Model in a Nonperturbative Scheme. Advances in High Energy Physics. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1118241
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118241