Possible $$D^{(*)}\bar{D}^{(*)}$$ D ( ∗ ) D ¯ ( ∗ ) and $$B^{(*)}\bar{B}^{(*)}$$ B ( ∗ ) B ¯ ( ∗ ) molecular states in the extended constituent quark models
| Autor: | Zhi-Yun Tan, Jialun Ping, Hong-Shi Zong, Youchang Yang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Particle physics
Nuclear Theory Physics and Astronomy (miscellaneous) Constituent quark FOS: Physical sciences lcsh:Astrophysics 01 natural sciences Schrödinger equation Nuclear Theory (nucl-th) symbols.namesake High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Bound state lcsh:QB460-466 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010306 general physics Engineering (miscellaneous) Physics 010308 nuclear & particles physics High Energy Physics::Phenomenology Gluon High Energy Physics - Phenomenology symbols lcsh:QC770-798 High Energy Physics::Experiment Bar (unit) |
| Zdroj: | European Physical Journal C: Particles and Fields, Vol 77, Iss 9, Pp 1-9 (2017) |
| ISSN: | 1434-6052 1434-6044 |
| DOI: | 10.1140/epjc/s10052-017-5137-6 |
| Popis: | The possible neutral $D^{(*)}\bar{D}^{(*)}$ and $B^{(*)}\bar{B}^{(*)}$ molecular states are studied in the framework of the constituent quark models, which is extended by including the $s$-channel one gluon exchange. Using different types of quark-quark potentials, we solve the four-body Schr\"{o}dinger equation by means of the Gaussian expansion method. The bound states of $D^{(*)}\bar{D}^{(*)}$ with $J^{PC}=1^{++},2^{++}$ and $B^{(*)}\bar{B}^{(*)}$ with $J^{PC}=0^{++},1^{+-},1^{++},2^{++}$ are obtained. The molecular states $D^{*}\bar{D}$ with $J^{PC}=1^{++}$ and $B^{*}\bar{B}$ with $J^{PC}=1^{+-}$ are good candidates for the $X(3872)$ and $Z^0_b(10610)$, respectively. Comment: 8 pages, 2 figures |
| Databáze: | OpenAIRE |
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