Bottomonium resonances with 
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 from lattice QCD correlation functions with static and light quarks

Bicudo, Pedro; Cardoso, Marco; Cardoso, Nuno; Wagner, Marc

doi:10.1103/physrevd.101.034503

Cited by 38 publications

(39 citation statements)

References 60 publications

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“…The Born-Oppenheimer approximation has also been used for heavy tetraquarks in Refs. [32,[38][39][40][41]. The EFT for heavy hybrids has been extended beyond leading order to include spin-dependent operators up to 1=m Q [42] and up to 1=m 2 Q [43,44].…”

Section: Introductionmentioning

confidence: 99%

Nonrelativistic effective field theory for heavy exotic hadrons

Soto

Castellà

2020

Phys. Rev. D

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We propose an effective field theory to describe hadrons with two heavy quarks without any assumption on the typical distance between the heavy quarks with respect to the typical hadronic scale. The construction is based on nonrelativistic QCD and inspired in the strong coupling regime of potential nonrelativistic QCD. We construct the effective theory at leading and next-to-leading order in the inverse heavy quark mass expansion for arbitrary quantum numbers of the light degrees of freedom. Hence our results hold for hybrids, tetraquarks, double heavy baryons and pentaquarks, for which we also present the corresponding operators at a nonrelativistic level. At leading order, the effective theory enjoys heavy quark spin symmetry and corresponds to the Born-Oppenheimer approximation. At next-to-leading order, spin and velocity-dependent terms arise, which produce splittings in the heavy quark spin symmetry multiplets. A concrete application to double heavy baryons is presented in an accompanying paper.

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Section: Introductionmentioning

confidence: 99%

Nonrelativistic effective field theory for heavy exotic hadrons

Soto

Castellà

2020

Phys. Rev. D

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“…Our results favor the Υ(10860) as a predominantly 5 3 S 1 state. Interestingly, a recent work based on the lattice QCD also suggested the Υ(10860) as a 5 3 S 1 state [84]. The mass of Υ(4S ) predicted by the RFT model is about 60 MeV higher than the measured mass of Υ(10580) (see Table IV).…”

Section: A Ns (N ≥ 2) Statesmentioning

confidence: 82%

Bottomonium spectrum in the relativistic flux tube model

Chen

Zhang

2020

Phys. Rev. D

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The bottomonium spectrum is far from being established. The structures of higher vector states, including the Υ(10580), Υ(10860), and Υ(11020) states, are still in dispute. In addition, whether the Υ(10750) signal which was recently observed by the Belle Collaboration is a normal bb state or not should be examined. Faced with such situation, we carried out a systematic investigation of the bottomonium spectrum in the scheme of the relativistic flux tube (RFT) model. A Chew-Frautschi like formula was derived analytically for the spin average mass of bottomonium states. We further incorporated the spin-dependent interactions and obtained a complete bottomonium spectrum. We found that the most established bottomonium states can be explained in the RFT scheme. The Υ(10750), Υ(10860), and Υ(11020) could be predominantly the 3 3 D 1 , 5 3 S 1 , and 4 3 D 1 states, respectively. Our predicted masses of 1F and 1G bb states are in agreement with the results given by the method of lattice QCD, which can be tested by experiments in future. We also compared the RFT model with the quark potential model in detail. The differences of these two kinds of models were discussed.

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“…These mixing potentials are related to the non-adiabatic coupling terms which are neglected in the B-O approximation. Noticeable progress in the incorporation of the non-adiabatic coupling terms within a framework that goes beyond the B-O approximation has been recently reported [10,11]. However, the calculation involving the non-adiabatic coupling terms requires more unquenched lattice data than currently at disposal [12,13].…”

Section: Strong Decays To Open Bottom Two-meson Statesmentioning

confidence: 99%

Strong decays of the lowest bottomonium hybrid within an extended Born–Oppenheimer framework

Bruschini

González

2021

Eur. Phys. J. C

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We analyze the decays of the theoretically predicted lowest bottomonium hybrid H(1P) to open bottom two-meson states. We do it by embedding a quark pair creation model into the Born–Oppenheimer framework which allows for a unified, QCD-motivated description of bottomonium hybrids as well as bottomonium. A new $$^{1}\!P_{1}$$ 1 P 1 decay model for H(1P) comes out. The same analysis applied to bottomonium leads naturally to the well-known $$^{3}\!P_{0}$$ 3 P 0 decay model. We show that H(1P) and the theoretically predicted bottomonium state $$\varUpsilon (5S)$$ Υ ( 5 S ) , whose calculated masses are close to each other, have very different widths for such decays. A comparison with data from $$\varUpsilon (10860)$$ Υ ( 10860 ) , an experimental resonance whose mass is similar to that of $$\varUpsilon (5S)$$ Υ ( 5 S ) and H(1P), is carried out. Neither a $$\varUpsilon (5S)$$ Υ ( 5 S ) nor a H(1P) assignment can explain the measured decay widths. However, a $$\varUpsilon (5S)$$ Υ ( 5 S ) –H(1P) mixing may give account of them supporting previous analyses of dipion decays of $$\varUpsilon (10860)$$ Υ ( 10860 ) and suggesting a possible experimental evidence of H(1P).

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Bottomonium resonances with I=0 from lattice QCD correlation functions with static and light quarks

Cited by 38 publications

References 60 publications

Nonrelativistic effective field theory for heavy exotic hadrons

Nonrelativistic effective field theory for heavy exotic hadrons

Bottomonium spectrum in the relativistic flux tube model

Strong decays of the lowest bottomonium hybrid within an extended Born–Oppenheimer framework

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