Revisiting the pion Regge trajectories

Chen, Jiao-Kai

doi:10.1016/j.nuclphysb.2022.115911

Cited by 10 publications

(3 citation statements)

References 70 publications

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“…Different forms of kinematic terms corresponding to different energy regions will yield different behaviors of the Regge trajectories [30,31,46]. p and r a lead to M ∼x a/(a+1) while p 2 and r a give M ∼x 2a/(a+2) (x = l, n r ).…”

Section: B Regge Trajectory Relations Obtained From the Qssementioning

confidence: 99%

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Regge trajectory relation for the universal description of the heavy-light systems: mesons, baryons and tetraquarks

Chen¹

2023

Preprint

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The Regge trajectory relation M = mR + c f x cxcc √ x + c0x (x = l, nr) is employed to give an universal description of the heavy-light systems. The universality is illustrated by fitting the Regge trajectories for the heavy-light mesons, the heavy baryons composed of one heavy quark and one light diquark and the tetraquarks consisting of one heavy diquark and one light antidiquark. The universality leads to the meson-baryon-tetraquark partners in case of the heavy-light systems inspired by the hadron superpartners from superconformal and supersymmetric algebra discussed in [22]. As the slope is universal and the parameters c f l = c f nr = 1, we find the relative errors of the estimated values are about 2%. The values estimated by the universal relation agree well with the experimental and theoretical data. Moreover, we estimate crudely the masses of the orbitally and radially excited states of D * (2010) ± , B * , Λ + c , Λ 0 b and the 2 ++ state of tetraquark T bbū d .

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Section: B Regge Trajectory Relations Obtained From the Qssementioning

confidence: 99%

“…In Refs. [30,31], we present discussions on the structure of the Regge trajectories in different planes and show that the Regge trajectories take different forms in different energy regions. In the present work, we show that the Regge trajectory relation [Eq.…”

Section: Introductionmentioning

confidence: 99%

Regge trajectory relation for the universal description of the heavy-light systems: mesons, baryons and tetraquarks

Chen¹

2023

Preprint

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“…In the 1960s, the Regge theory was developed, which connects the high-energy behavior of the scattering amplitude with singularities in the complex angular momentum plane of the partial wave amplitudes [12]. Recent years have seen a resurgence in interest in the Regge theory due to the fact that it may be applied to the prediction of meson masses as well as the determination of the quantum numbers of newly detected states in experiments [13,14,15,16,17,18,19,20,21]. According to Regge theory, mesons have poles that shift in the plane of complex angular momentum as a function of their energy.…”

Section: Regge Phenomenologymentioning

confidence: 99%

Mass spectrum and decays of the first radial excitation axial vector meson nonet

Feng¹,

Wei²

2023

Preprint

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In this work, the mass spectrum of the first radial excitation axial vector meson nonet is considered in the framework of the nonrelativistic constituent quark model and Regge phenomenology. After that, we investigate the strong decay characteristics of these states within the 3 P 0 model. The results are compared to values from other phenomenological models, and they may be beneficial in the prospective search for 2 3 P 1 meson nonets.

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Regge trajectories for the heavy-light diquarks

Chen,

Feng,

Xie

2023

J. High Energ. Phys.

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We attempt to apply the Regge trajectory approach to the heavy-light diquarks composed of one heavy quark and one light quark. However, we find that the direct application of the usual Regge trajectory formula for the heavy-light mesons and baryons fails. In order to correctly estimate the masses of the heavy-light diquarks, it is needed to consider the light quark mass correction and the parameter C in the Cornell potential within the Regge trajectory formula. By using the modified Regge trajectory formulas, we are able to estimate the masses of the heavy-light diquarks (cu), (cs), (bu) and (bs), which agree with other theoretical results. It is illustrated that the heavy-light diquarks satisfy the universal descriptions irrespective of heavy quark flavors, similar to other heavy-light systems such as the heavy-light mesons, the heavy-light baryons composed of one heavy quark (diquark) and one light diquark (quark), and the heavy-light tetraquarks composed of one heavy diquark (antidiquark) and one light antidiquark (diquark). The diquark Regge trajectory provides a new and very simple approach for estimating the spectra of the heavy-light diquarks.

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Revisiting the pion Regge trajectories

Cited by 10 publications

References 70 publications

Regge trajectory relation for the universal description of the heavy-light systems: mesons, baryons and tetraquarks

Regge trajectory relation for the universal description of the heavy-light systems: mesons, baryons and tetraquarks

Mass spectrum and decays of the first radial excitation axial vector meson nonet

Regge trajectories for the heavy-light diquarks

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