Diabatic description of bottomoniumlike mesons

Abstract

We apply the diabatic approach, specially suited for a QCD based study of conventional (quark-antiquark) and unconventional (quark-antiquark + meson-meson) meson states, to the description of hidden-bottom mesons. A spectral analysis of the $I=0$, $J^{++}$ and $1^{--}$ resonances with masses up to about $10.8$ GeV is carried out. Masses and widths of all the experimentally known resonances, including conventional and unconventional states, can be well reproduced. In particular, we predict a significant $B{\bar{B}}^{\ast }$ component in ${\rm Y}(10580)$. We also predict the existence of a not yet discovered unconventional $1^{++}$ narrow state, with a significant $B_s{\bar{B}}_s^{\ast }$ content making it to decay into ${\rm Y}(1S)\varphi$, whose experimental discovery would provide definite support to our theoretical analysis.

arXiv comment12 pages, 5 figures, 8 tables; v2: corrected values in Table VII

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Cited by in corpus (9)

• One Born$-$Oppenheimer Effective Theory to rule them all: hybrids, tetraquarks, pentaquarks, doubly heavy baryons and quarkonium
• Study of $I=0$ bottomonium bound states and resonances in $S$, $P$, $D$ and $F$ waves with lattice QCD static-static-light-light potentials
• Heavy meson thresholds in Born-Oppenheimer Effective field theory
• The unreasonable effectiveness of effective string theory: the case of the 3d SU(2) Higgs model
• Bottomonia in an unquenched quark model
• Effect of continuum states on the double-heavy hadron spectra
• ${\chi }_{c1}(2p)$: an overshadowed charmoniumlike resonance
• Is ${\chi }_{c1}(3872)$ generated from string breaking?
• Coupled-channel meson-meson scattering in the diabatic framework