Applications of the Nambu–Jona-Lasinio model to the partonic structure of the pion

Wojciech Broniowski; Enrique Ruiz Arriola

doi:10.1140/epjst/e2020-000046-8

2021 Impact factor 2.891

Special Topics

Strong Correlations in Dense Matter Physics

Open Access

Eur. Phys. J. Special Topics 229, 3341–3349 (2020)
https://doi.org/10.1140/epjst/e2020-000046-8

Regular Article

Applications of the Nambu–Jona-Lasinio model to the partonic structure of the pion^★,^★★

Wojciech Broniowski¹^,2^a and Enrique Ruiz Arriola³^b

¹ Institute of Physics, Jan Kochanowski University, 25-406 Kielce, Poland
² Institute of Nuclear Physics PAN, 31-342 Cracow, Poland
³ Departamento de Física Atómica, Molecular y Nuclear and Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada, 18071 Granada, Spain

^a e-mail: Wojciech.Broniowski@ifj.edu.pl
^b e-mail: earriola@ugr.es

Received: 22 March 2020
Accepted: 27 October 2020
Published online: 21 December 2020

Abstract

We present a brief review of results of chiral quark models for soft matrix elements in the pion state, appearing in high-energy processes as well as accessible in present and future lattice studies. A particular attention is paid to the recently explored double parton distribution functions of the pion.

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Dedicated to David Blaschke on the occasion of his 60th birthday. Presented by WB at The 40th Max Born Symposium Three Days on Strong Correlations in Dense Matter, 9-12 October 2019, Wrocław, Poland.

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Supported by the Polish National Science Centre (NCN) Grant 2018/31/B/ST2/01022, the Spanish Ministerio de Economia y Competitividad and European FEDER funds Grant FIS2017-85053-C2-1-P, and Junta de Andaluca Grant FQM-225.

© The Author(s) 2020

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.