Exploring X(5568) as a meson molecule
| Autor: | Kazem Azizi, Hayriye Sundu, Shahin S. Agaev |
|---|---|
| Přispěvatelé: | Doğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü, TR49172, TR101590, Azizi, Kazem |
| Rok vydání: | 2016 |
| Předmět: |
Particle physics
Current (mathematics) Nuclear Theory Meson High Energy Physics::Lattice Structure (category theory) FOS: Physical sciences General Physics and Astronomy 01 natural sciences High Energy Physics - Experiment Nuclear Theory (nucl-th) High Energy Physics - Experiment (hep-ex) Meson Molecule High Energy Physics - Lattice High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Molecule Exponential decay 010306 general physics Quantum chromodynamics Physics 010308 nuclear & particles physics High Energy Physics - Lattice (hep-lat) High Energy Physics::Phenomenology Diquark-Antidiquark Model State (functional analysis) Coupling (probability) High Energy Physics - Phenomenology High Energy Physics::Experiment D0 Collaboration |
| Zdroj: | The European Physical Journal Plus. 131 |
| ISSN: | 2190-5444 |
| Popis: | The parameters, i.e. the mass and current coupling of the exotic $X(5568)$ state observed by the D0 Collaboration as well as the decay width of the process $X \to B_s^{0}\pi^{+}$ are explored using $B\bar{K}$ molecule assumption on its structure. Employed computational methods include QCD two-point and light-cone sum rules, latter being considered in the soft-meson approximation. The obtained results are compared with the data of the D0 Collaboration as well as with the predictions of the diquark-antidiquark model. This comparison strengthens a diquark-antidiquark picture for the $X(5568)$ state rather than a meson molecule structure. Comment: 7 Pages, 2 Figures and 1 Table |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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