Role of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Y</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4630</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mrow><mml:mi>p</mml:mi></mml:mrow><mml:mrow><mml:mo accent="true" stretchy="false">¯</mml:mo></mml:mrow></mml:mover><mml:mo stretchy="false">→</mml:mo><mml:msub><mml:mrow><

Wang, Yanyan; Lü, Qi-Fang; Wang, En; Li, Demin

doi:10.1103/physrevd.94.014025

Cited by 11 publications

(5 citation statements)

References 59 publications

(57 reference statements)

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“…In Ref. [789], the role of the s-channel Y (4630) in the pp → Λ c Λc reaction near threshold was investigated. The authors found that this state gives a clear bump structure with the magnitude of 10 µb, which can be tested by the PANDA experiment.…”

Section: The Y Statesmentioning

confidence: 99%

Pentaquark and Tetraquark states

Liu,

Chen,

Chen

et al. 2019

Preprint

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The past seventeen years have witnessed tremendous progress on the experimental and theoretical explorations of the multiquark states. The hidden-charm and hidden-bottom multiquark systems were reviewed extensively in Ref. [1]. In this article, we shall update the experimental and theoretical efforts on the hidden heavy flavor multiquark systems in the past three years. Especially the LHCb collaboration not only confirmed the existence of the hidden-charm pentaquarks but also provided strong evidence of the molecular picture. Besides the well-known XY Z and P c states, we shall discuss more interesting tetraquark and pentaquark systems either with one, two, three or even four heavy quarks. Some very intriguing states include the fully heavy exotic tetraquark states QQ Q Q and doubly heavy tetraquark states QQq q, where Q is a heavy quark. The QQ Q Q states may be produced at LHC while the QQq q system may be searched for at BelleII and LHCb. Moreover, we shall pay special attention to various theoretical schemes such as the chromomagnetic interaction (CMI), constituent quark model, meson exchange model, heavy quark and heavy diquark symmetry, QCD sum rules, Faddeev equation for the three body systems, Skyrme model and the chiral quark-soliton model, and the lattice QCD simulations. We shall emphasize the model-independent predictions of various models which are truly/closely related to Quantum Chromodynamics (QCD). For example, the chromomagnetic interaction arises from the gluon exchange which is fundamental and universal in QCD and responsible for the mixing and mass splitting of the conventional mesons and baryons within the same multiplet. The same CMI

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Section: The Y Statesmentioning

confidence: 99%

Pentaquark and Tetraquark states

Liu,

Chen,

Chen

et al. 2019

Preprint

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“…[23] in an attempt to estimate the cross section for the reaction pp → Λ þ interaction with the one in the ΛΛ system, see also Ref. [24]. However, in the present study we want to avoid to make any such basically phenomenological assumptions.…”

Section: Formalismmentioning

confidence: 99%

Re-examining the X(4630) resonance in the reaction e+e−
Dai
¹
,
Haidenbauer
²
,
Meißner
³

2017
Phys. Rev. D
40
1
31
0
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The reaction e þ e − → Λ þ cΛ − c is investigated at energies close to the threshold with emphasis on the role played by the Xð4630Þ resonance. The interaction in the final Λ þ cΛ − c system, constructed within chiral effective field theory and supplemented by a pole diagram that represents a bare Xð4630Þ resonance, is taken into account rigorously. The pole parameters of the Xð4630Þ are extracted and found to be compatible with the ones of the Xð4660Þ resonance that have been established in the reaction e þ e − → π þ π − ψð2SÞ. The actual result for the Xð4630Þ is M ¼ ð4652.5 AE 3.4Þ MeV and Γ ¼ ð62.6 AE 5.6Þ MeV. Predictions for the Λ þ c electromagnetic form factors in the timelike region are presented.

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“…Indeed, the values of the cutoff parameters can be directly related to the hadron size. Since the question of hadron size is still open, the cutoff parameters are usually adjusted to the related experimental measurement [55,56]. The typical value of the cut-off Λ in the born potential is in the region of 1.0 ∼ 2.0 GeV.…”

Section: Formalismsmentioning

confidence: 99%

ϕ(2170) production in the process γp→ηϕp

Zhao

Wang

et al. 2019

Phys. Rev. D

Self Cite

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We have studied the γp → ηφp reaction within the effective Lagrangian approach, by considering the contribution of the intermediate state φ(2170) production, and the background contributions of t-channel π 0 and η mesons exchanges with the intermediate states N and N (1535). Our calculations show that there may be a peak, at least a bump structure around 2180 MeV associated to the resonance φ(2170) in the ηφ mass distribution. We suggest to search for the resonance φ(2170) in this reaction, which would be helpful to shed light on its nature. PACS numbers:

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Role ofY(4630)in thepp¯→<

Cited by 11 publications

References 59 publications

Pentaquark and Tetraquark states

Pentaquark and Tetraquark states

Re-examining the X(4630) resonance in the reaction e+e−
Dai
¹
,
Haidenbauer
²
,
Meißner
³

2017
Phys. Rev. D
40
1
31
0
View full text Add to dashboard Cite

ϕ(2170) production in the process γp→ηϕp

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Role ofY(4630)in thepp¯→<

Cited by 11 publications

References 59 publications

Pentaquark and Tetraquark states

Pentaquark and Tetraquark states

Re-examining the X(4630) resonance in the reaction e+e−Dai1, Haidenbauer2, Meißner3 2017Phys. Rev. D401310View full textAdd to dashboardCite

ϕ(2170) production in the process γp→ηϕp

Contact Info

Product

Resources

About

Re-examining the X(4630) resonance in the reaction e+e−
Dai
¹
,
Haidenbauer
²
,
Meißner
³

2017
Phys. Rev. D
40
1
31
0
View full text Add to dashboard Cite