Color connections of the four-quark <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>Q</mml:mi><mml:mover accent="true"><mml:mi>Q</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:msup><mml:mrow><mml:mi>Q</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mover accent="true"><mml:mi>Q</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:math> system and doubly heavy bar

Jin, Y.; Li, Shi‐Yuan; Si, Zong-Guo; Yang, Z.; Yao, Takeshi

doi:10.1016/j.physletb.2013.10.070

Cited by 14 publications

(9 citation statements)

References 32 publications

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“…On the other hand, the production of X(5568) needs a special string: The bu or bd diquark as one of the end of the string connecting another quark as the other end [13][14][15]. Needless to say, this kind of colour connection is suppressed.…”

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confidence: 99%

NewBs0π±andDs±π±states in high energy multiproduction process

Jin

Liu

2016

Phys. Rev. D

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confidence: 99%

NewBs0π±andDs±π±states in high energy multiproduction process

Jin

Liu

2016

Phys. Rev. D

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“…For the four-charm quark system cccc, in e þ e − annihilation, if two cs belong to different color-singlet clusters, doubly charmed baryon cannot be produced. As is pointed out in [9,10], the production of such a baryon is a fingerprint of a special kind of color connection. We investigate the color connections and model the hadronization.…”

Section: Introductionmentioning

confidence: 87%

“…The production of doubly charmed tetraquarks in various colliders has been discussed in Refs. [9,10,20,37,38]. If the predicted mass of T cc is above the DD Ã threshold, it can decay strongly into DD Ã , and one may search for it in this channel.…”

Section: Color Connections and Hadronizationsmentioning

confidence: 99%

Search for a doubly charmed hadron atBfactories

Jin

Liu

et al. 2014

Phys. Rev. D

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The doubly charmed hadron production at B factories is of special importance for the study of the hadron structure and the color connections before hadronization. To suppress the combination background fluctuations of the reconstructed hadron mass spectra, we suggest a three-jet event shape trigger. After these three jets are identified by their energy and angular distributions, it is found that (1) the background process e þ e − → cc → h 0 s in consideration of the final hadron system Λ þ c K − π þ þ X is significantly suppressed, and (2) for the selected events, about half of the particles, Λ þ c , K − , π þ , which obviously cannot belong to the decay products of the doubly charmed hadron, can be vetoed. The relevant hadronization is investigated.

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“…Dynamically, the colour interactions in the system via exchanging gluons can change the colour state of each individual cluster, so each kind of grouping/reduction way seems having no special physical reasons. Such an ambiguity of 'colour recombination/rearrangement' [7][8][9], obstacles the possibility to consider the multiquark hadron in a unique and uniform way, while leads to the possibility of introducing some phenomenological duality. Namely, even we consider the production of multiquark hadron as 'hadron molecule formation' ('production definition'), the subsequent colour interactions in the system can eventually transit this 'molecule' into a 'real' multiquark hadron, at least by some probability -et vice verse [10][11][12][13][14].…”

Section: Unitarity Colour and Baryon Fluctuationmentioning

confidence: 99%

Study hadron property and structure in high energy multiproduction process

2021

Preprint

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In high energy scattering, multiproduction process is unique in its relevance to the total cross section and in its global property such as rapidity and other kinematic distributions. If there is hard interaction, the jet rate and structure is a good arena of perturbative chromodynamics. However, once any hadron is specified, its property and structure must make sense while the global and/or perturbative chromodynamics mechanism still can put important constrains. The relation of the hadron property and structure with its production cross section, distribution etc. can be much more complex than its decay width. In one hand there are many difficulties and challenges in calculation; on the other hand, production process provides unique way to study the details of property and structure of the hadron, which is beyond the approach of its decay process. Here I review our works on such topic in recent years, mainly on the multiquark state production in multiproduction process and the Bethe-Salpeter wave function in exclusive process. For the former, I emphasize on the unitarity of hadronization process and relevant models, so that Almost No multiquark state is observed in multiproduction process; I also address how to calculate hadron molecule production in multiproduction process; the most recent observed T + cc is also stated with its relevance to colour and baryon number fluctuation of the preconfinement clusters. For the latter, I emphasize the Dirac structure of the hadron-quark coupling vertex. Contents 1 Introduction 2 2 Unitarity, colour and baryon fluctuation 2 3 Bethe-Salpeter (BS) wave function in production 3 4 Conclusion 3 References 4

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Color connections of the four-quark QQ¯Q′Q¯′ system and doubly heavy bar

Cited by 14 publications

References 32 publications

NewBs0π±andDs±π±states in high energy multiproduction process

NewBs0π±andDs±π±states in high energy multiproduction process

Search for a doubly charmed hadron atBfactories

Study hadron property and structure in high energy multiproduction process

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