One-photon decay of the tetraquark state<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3872</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mo>→</mml:mo><mml:mi>γ</mml:mi><mml:mo>+</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi></mml:math>in a relativistic constituent quark model with infrared confinement

Dubnička, S.; Dubničková, A. Z.; Ivanov, Mikhail A.; Körner, Jürgen; Santorelli, Pietro; Saidullaeva, G.G.

doi:10.1103/physrevd.84.014006

Cited by 58 publications

(36 citation statements)

References 40 publications

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“…Note that our full phenomenological Lagrangian describing the radiative transition of the Y (4260) state has a simple structure reflected in the corresponding matrix element for the Y (4260) → X(3872) + γ decay. It contains a smaller number of linearly independent Lorentz structures as was found for example in the tetraquark model [25]. In Ref.…”

Section: Decay Modes and Resultsmentioning

confidence: 99%

Radiative decayY(4260)→X(3872)+γinvolving hadronic molecular and charmonium components

et al. 2014

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Radiative decay Y (4260) → X(3872) + γ involving hadronic molecular and charmonium components We apply a phenomenological Lagrangian approach to the radiative decay Y (4260) → X(3872)+γ. The Y (4260) and X(3872) resonances are considered as composite states containing both molecular hadronic and charmonium components. Having a leading molecular component in the X(3872) and a sole molecular configuration for the Y (4260) results in a prediction compatible with present data.

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Section: Decay Modes and Resultsmentioning

confidence: 99%

Radiative decayY(4260)→X(3872)+γinvolving hadronic molecular and charmonium components

et al. 2014

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“…[665,666,667,668], which can also be used to test different theoretical proposals related to the X(3872). Later, various methods/models were applied to study the radiative transitions of the X(3872) such as ψ(4160) → γX(3872), X(3872) → γJ/ψ(ψ ), X(3872) → D 0D0 γ [669,670,671,672,673,674,675,676,677], which may play a fundamental role in the determination of the nature of the X(3872).…”

Section: Lattice Qcdmentioning

confidence: 99%

The hidden-charm pentaquark and tetraquark states

et al. 2016

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In the past decade many charmonium-like states were observed experimentally. Especially those charged charmoniumlike Z c states and bottomonium-like Z b states can not be accommodated within the naive quark model. These charged Z c states are good candidates of either the hidden-charm tetraquark states or molecules composed of a pair of charmed mesons. Recently, the LHCb Collaboration discovered two hidden-charm pentaquark states, which are also beyond the quark model. In this work, we review the current experimental progress and investigate various theoretical interpretations of these candidates of the multiquark states. We list the puzzles and theoretical challenges of these models when confronted with the experimental data. We also discuss possible future measurements which may distinguish the theoretical schemes on the underlying structures of the hidden-charm multiquark states.

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“…This approach was successfully applied to a study of the tetraquark state X(3872) and its strong and radiative decays (see, Refs. [7,8]). …”

Section: Introductionmentioning

confidence: 99%

Light baryons and their electromagnetic interactions in the covariant constituent quark model

et al. 2012

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We extend the confined covariant constituent quark model that was previously developed by us for mesons to the baryon sector. In our numerical calculation we use the same values for the constituent quark masses and the infrared cutoff as have been previously used in the meson sector. In a first application we describe the static properties of the proton and neutron, and the Λ-hyperon (magnetic moments and charge radii) and the behavior of the nucleon form factors at low momentum transfers. We discuss in some detail the conservation of gauge invariance of the electromagnetic transition matrix elements in the presence of a nonlocal coupling of the baryons to the three constituent quark fields.

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One-photon decay of the tetraquark stateX(3872)→γ+J/ψin a relativistic constituent quark model with infrared confinement

Cited by 58 publications

References 40 publications

Radiative decayY(4260)→X(3872)+γinvolving hadronic molecular and charmonium components

Radiative decayY(4260)→X(3872)+γinvolving hadronic molecular and charmonium components

The hidden-charm pentaquark and tetraquark states

Light baryons and their electromagnetic interactions in the covariant constituent quark model

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