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., Puckett, A.J.R., Roberts, C.D., Rossi, P., . . . Wojtsekhowski, B.B. (2021). Diquark correlations in hadron physics : origin, impact and evidence. Progress in Particle and Nuclear Physics, 116, Article 103835. https://doi.org/10.1016/j.ppnp.2020.103835

JYU authors or editors

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

Publication open access: Not open

Publication channel open access:

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


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

Contributing organizations

Related projects

Ministry reporting: Yes

Reporting Year: 2021

JUFO rating: 1

Last updated on 2022-14-09 at 11:48