Strong<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow></mml:msub><mml:mi>N</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mi>N</mml:mi><mml:mi>D</mml:mi></mml:math>vertices

Azizi, K.; Sarac, Y.; Sundu, H.

doi:10.1103/physrevd.90.114011

Cited by 50 publications

(73 citation statements)

References 48 publications

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“…[18][19][20][21][22][23]. Both radial and p-wave excitations have been also studied in the framework of the QCD sum rules [24][25][26][27][28], in a phenomenological approach [29] and on the lattice [30]. A nonperturbative holographic QCD has been applied to investigate heavy, regular, and exotic baryons in Refs.…”

Section: Introductionmentioning

confidence: 99%

Strong decays of exotic and nonexotic heavy baryons in the chiral quark-soliton model

et al. 2017

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In the large N c limit both heavy and light baryons are described by the universal mean field, which allows us to relate the properties of heavy baryons to light ones. With the only input from the decays of light octet baryons (due to the universality of the chiral mean field), excellent description of strong decays of both charm and bottom sextets is obtained. The parameter-free prediction for the widths of exotic antidecapentaplet (15) baryons is also made. The exotic heavy baryons should be anomalously narrow despite of large phase space available. In particular, the widths of Ω c (3050) and Ω c (3119), interpreted as members of 15-plet, are very small: 0.48 MeV and 1.12 MeV respectivly. This result is in very good agreement with the measurements of the LHCb Collaboration and provides natural and parameter-free explanation of the LHCb observation that Ω c (3050) and Ω c (3119) have anomalously small widths among five recently observed states.

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Section: Introductionmentioning

confidence: 99%

Strong decays of exotic and nonexotic heavy baryons in the chiral quark-soliton model

et al. 2017

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“…The mass and production of the hidden-bottom pentaquarks have been studied in Refs. [4,9,40,[91][92][93][94].…”

Section: Introductionmentioning

confidence: 99%

Hidden-charm and bottom meson-baryon molecules coupled with five-quark states

et al. 2017

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In this paper, we investigate the hidden-charm pentaquarks asD ( * ) Λ c andD ( * ) Σ ( * ) c molecules coupled to the five-quark states. Furthermore, we extend our calculations to the hidden-bottom sector. The coupling to the five-quark states is treated as the short range potential, where the relative strength for the meson-baryon channels is determined by the structure of the five-quark states. We found that resonant and/or bound states appear in both the charm and bottom sectors.The five-quark state potential turned out to be attractive and, for this reason, it plays an important role to produce these states. In the charm sector, we need the five-quark potential in addition to the pion exchange potential in producing bound and resonant states, whereas, in the bottom sector, the pion exchange interaction is strong enough to produce states. Thus, from this investigation, it emerges that the hidden-bottom pentaquarks are more likely to form than their hidden-charm counterparts; for this reason, we suggest that the experimentalists should look for states in the bottom sector.

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“…The QCDSR is one of the most powerful non-perturbative methods, which is also independent of model parameters. In recent years, numerous research articles have been reported about the precise determination of the strong form factors and coupling constants via QCDSR, light-cone QCDSR or lattice calculation [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] 2 and qq GG at OPE side. In Sect.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Wang

2015

Eur. Phys. J. C

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In this article, we calculate the form factors and the coupling constant of the vertex D * s D s φ using the threepoint QCD sum rules. We consider the contributions of the vacuum condensates up to dimension 7 in the operator product expansion. And all possible off-shell cases are considered, φ, D s and D * s , resulting in three different form factors. Then we fit the form factors into analytical functions and extrapolate them into time-like regions, which giving the coupling constant for the process.

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StrongΛbNBandΛcNDvertices

Cited by 50 publications

References 48 publications

Strong decays of exotic and nonexotic heavy baryons in the chiral quark-soliton model

Strong decays of exotic and nonexotic heavy baryons in the chiral quark-soliton model

Hidden-charm and bottom meson-baryon molecules coupled with five-quark states

Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

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StrongΛbNBandΛcNDvertices

Cited by 50 publications

References 48 publications

Strong decays of exotic and nonexotic heavy baryons in the chiral quark-soliton model

Strong decays of exotic and nonexotic heavy baryons in the chiral quark-soliton model

Hidden-charm and bottom meson-baryon molecules coupled with five-quark states

Analysis of the strong coupling constant $$G_{D_{s}^{*}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{*}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

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Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules