Few-body quark dynamics for doubly heavy baryons and tetraquarks

6533b86ffe1ef96bd12cdea1

RESEARCH PRODUCT

Few-body quark dynamics for doubly heavy baryons and tetraquarks

Javier Vijande Jean-marc Richard A. Valcarce

subject

Quark Particle physics wave function Nuclear Theory [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]Born–Oppenheimer approximation FOS: Physical sciences tetraquark: energy 01 natural sciences Nuclear Theory (nucl-th)symbols.namesake High Energy Physics - Phenomenology (hep-ph)0103 physical sciences 010306 general physics Wave function Born-Oppenheimer approximation [ PHYS.NUCL ] Physics [physics]/Nuclear Theory [nucl-th]Physics quark model 010308 nuclear & particles physics Quark model Dynamics (mechanics)High Energy Physics::Phenomenology baryon: energy Mass ratio tetraquark: stability Baryon Diquark High Energy Physics - Phenomenology [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]symbols approximation: diquark [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]mass ratio

description

We discuss the adequate treatment of the 3- and 4-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 rather 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.

year	journal	country	edition	language
2018-03-28

https://fundanet.iislafe.san.gva.es/publicaciones/ProdCientif/PublicacionFrw.aspx?id=12180

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