A2 Review article, Literature review, Systematic review
Diquark correlations in hadron physics : origin, impact and evidence (2021)


Barabanov, M.Yu.; Bedolla, M.A.; Brooks, W.K.; Cates, G.D.; Chen, C.; Chen, Y.; Cisbani, E.; Ding, M.; Eichmann, G.; Ent, R.; Ferretti, J.; Gothe, R.W.; Horn, T.; Liuti, S.; Mezrag, C.; Pilloni, A. et al. (2021). Diquark correlations in hadron physics : origin, impact and evidence. Progress in Particle and Nuclear Physics, 116, 103835. DOI: 10.1016/j.ppnp.2020.103835


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Publication details

All authors or editors: Barabanov, M.Yu.; Bedolla, M.A.; Brooks, W.K.; Cates, G.D.; Chen, C.; Chen, Y.; Cisbani, E.; Ding, M.; Eichmann, G.; Ent, R.; et al.

Journal or series: Progress in Particle and Nuclear Physics

ISSN: 0146-6410

eISSN: 1873-2224

Publication year: 2021

Volume: 116

Article number: 103835

Publisher: Elsevier BV

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1016/j.ppnp.2020.103835

Open Access: Publication channel is not openly available

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/73033

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2008.07630


Abstract

The last decade has seen a marked shift in how the internal structure of hadrons is understood. Modern experimental facilities, new theoretical techniques for the continuum bound-state problem and progress with lattice-regularised QCD have provided strong indications that soft quark+quark (diquark) correlations play a crucial role in hadron physics. For example, theory indicates that the appearance of such correlations is a necessary consequence of dynamical chiral symmetry breaking, viz. a corollary of emergent hadronic mass that is responsible for almost all visible mass in the universe; experiment has uncovered signals for such correlations in the flavour-separation of the proton’s electromagnetic form factors; and phenomenology suggests that diquark correlations might be critical to the formation of exotic tetra- and penta-quark hadrons. A broad spectrum of such information is evaluated herein, with a view to consolidating the facts and therefrom moving toward a coherent, unified picture of hadron structure and the role that diquark correlations might play.


Keywords: particle physics; quarks

Free keywords: diquark correlations; hadron physics


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Preliminary JUFO rating: 1


Last updated on 2020-08-12 at 13:57