Journal
PHYSICAL REVIEW C
Volume 97, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.97.035211
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Funding
- Ministerio de Economia, Industria y Competitividad
- EU FEDER [FPA2013-47443, FPA2016-77177, FPA2015-69714-REDT]
- Junta de Castilla y Leon [SA041U16]
- Generalitat Valenciana [PrometeoII/2014/066]
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We discuss the adequate treatment of the three- and four-body dynamics for the quark model picture of double-charm baryons and tetraquarks. We stress that the variational and Born-Oppenheimer approximations give energies very close to the exact ones, while the diquark approximation might be somewhat misleading. The Hall-Post inequalities also provide very useful lower bounds that exclude the possibility of stable tetraquarks for some mass ratios and some color wave functions.
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