Stable Tetraquarks

2018/04/13 by Chris Quigg, Quigg, Chris
Materials Science · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Magnetism in coordination complexes #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1804.04929

openalex publication_date 2018/04/13 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

For very heavy quarks, relations derived from heavy-quark symmetry imply novel narrow doubly heavy tetraquark states containing two heavy quarks and two light antiquarks. We predict that double-beauty states will be stable against strong decays, whereas the double-charm states and mixed beauty+charm states will dissociate into pairs of heavy-light mesons. Observing a new double-beauty state through its weak decays would establish the existence of tetraquarks and illuminate the role of heavy color-antitriplet diquarks as hadron constituents.

Related

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• Quark mass dependence of doubly heavy tetraquark binding
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• Systematics of doubly heavy tetraquarks: nonstrange and strange