Heavy and light spectroscopy near the physical point, Part II: Tetraquarks

A. Francis, R. J. Hudspith, R. Lewis, K. Maltman

研究成果: Conference article同行評審


Having introduced the ensembles and basic spectrum in Part I of this conference contribution, we focus on results for a doubly heavy tetraquark candidate, qq′ Q Q . Based on phenomenological observations regarding heavy baryon systems, we motivate two possible lattice interpolating operators: a diquark-antidiquark and a meson-meson. We show that these operators exhibit good behaviour both in terms of lattice QCD and their phenomenological interpretation. In particular we study the udb b and ℓsb b flavor combinations and analyze their binding. At the physical point, at finite lattice spacing, we find strong indications for binding of these tetraquark candidates. We comment on possible finite volume effects and search windows for experimental confirmation.

期刊Proceedings of Science
Part F128557
出版狀態Published - 2016
事件34th Annual International Symposium on Lattice Field Theory, LATTICE 2016 - Southampton, United Kingdom
持續時間: 24 7月 201630 7月 2016


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