Charmonium resonances in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>exclusive reactions around the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4415</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>region

Segovia, Jorge; Entem, D. R.; Fernández, F.

doi:10.1103/physrevd.83.114018

Cited by 37 publications

(16 citation statements)

References 23 publications

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“…[44] (see references [45] and [46] for reviews). This model has recently been successfully applied to mesons containing heavy quarks, studying their spectra [47][48][49][50], their electromagnetic, weak and strong decays and reactions [47,[50][51][52][53][54][55], their coupling with meson-meson thresholds [56][57][58][59] and, lately, the phenomenological exploration of multiquark structures [60,61]. Therefore, this study entails the first step towards an unified description of heavy mesons and baryons using the same quark model, parameters and technical formalism presented in Refs.…”

Section: Introductionmentioning

confidence: 99%

Triply heavy baryons in the constituent quark model *

et al. 2020

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A constituent quark model, which has recently been successfully applied to the study of heavy quarkonium properties such as its spectrum but also a diverse array of observables related with their electromagnetic, strong and weak decays and reactions, is used herein to compute groundand excited-state masses of QQQ-baryons containing either c-or b-quarks. Considering the lack of experimental information about the spectra of triply-heavy baryons, we believe that our computation could help on finding new states, since it is expected that phenomenological quark models describe triply-heavy baryons to a similar degree of accuracy as heavy quarkonia. The quark model parameters previously used to describe cc and bb properties have not been modified for this analysis. The non-relativistic three-body bound-state problem is solved by means of the Gaußian expansion method which provides enough accuracy and simplifies the subsequent evaluation of the matrix elements. Several low-lying states with quantum numbers J P = 1 2 ± , 3 2 ± , 5 2 ± and 7 2 + are reported.We compare our results with those predicted by many other theoretical formalisms. There is a general trend of agreement about the mass of the ground state in each sector of triply-heavy baryons; however, the situation is more puzzling for the excited states and thus appropriate comments on the most relevant features of our comparison are given. *

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Section: Introductionmentioning

confidence: 99%

Triply heavy baryons in the constituent quark model *

et al. 2020

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“…This model successfully describes hadron phenomenology and hadronic reactions [46][47][48] and has recently been applied to (non)conventional hadrons containing heavy quarks (see, for instance, Refs. [49][50][51][52][53][54][55]).…”

Section: Introductionmentioning

confidence: 99%

Molecular components in P -wave charmed-strange mesons

et al. 2016

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Results obtained by various experiments show that the D * s0 (2317) and Ds1(2460) mesons are very narrow states located below the DK and D * K thresholds, respectively. This is markedly in contrast with the expectations of naive quark models and heavy quark symmetry. Motivated by a recent lattice study which addresses the mass shifts of the cs ground states with quantum numbers J P = 0 + (D * s0 (2317)) and J P = 1 + (Ds1(2460)) due to their coupling with S-wave D ( * ) K thresholds, we perform a similar analysis within a nonrelativistic constituent quark model in which quark-antiquark and meson-meson degrees of freedom are incorporated. The quark model has been applied to a wide range of hadronic observables and thus the model parameters are completely constrained. The coupling between quark-antiquark and meson-meson Fock components is done using a 3 P0 model in which its only free parameter γ has been elucidated performing a global fit to the decay widths of mesons that belong to different quark sectors, from light to heavy. We observe that the coupling of the 0 + (1 + ) meson sector to the DK (D * K) threshold is the key feature to simultaneously lower the masses of the corresponding D * s0 (2317) and Ds1(2460) states predicted by the naive quark model and describe the Ds1(2536) meson as the 1 + state of the j P q = 3/2 + doublet predicted by heavy quark symmetry, reproducing its strong decay properties. Our calculation allows to introduce the coupling with the D-wave D * K channel and the computation of the probabilities associated with the different Fock components of the physical state.

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“…Many attempts were made to describe the measured exclusive cross sections [25][26][27][28][29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Exclusive open-charm near-threshold cross sections in a coupled-channel approach

et al. 2017

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Data on 7 open-charm channels collected by the Belle Collaboration are analyzed simultaneously using a unitary approach based on a coupledchannel model in a wide energy range √ s = 3.7 − 4.7 GeV. The resulting fit provides a remarkably good overall description of the line shapes in all studied channels. Parameters of 5 vector charmonium resonances are extracted from the fit. It is demonstrated, that this approach could be used account for all exclusive channels and thus solve the long-term problem of the charmonium spectra near threshold.

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Charmonium resonances ine+e−exclusive reactions around theψ(4415)region

Cited by 37 publications

References 23 publications

Triply heavy baryons in the constituent quark model *

Triply heavy baryons in the constituent quark model *

Molecular components in P -wave charmed-strange mesons

Exclusive open-charm near-threshold cross sections in a coupled-channel approach

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