Continuum Strong QCD: Baryon Masses and Partonic Structure

• Grant number: 15/21550-4
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: May 01, 2016
• End date: March 14, 2019
• Field of knowledge: Physical Sciences and Mathematics - Physics - Nuclear Physics
• Principal Investigator: Gastão Inácio Krein
• Grantee: Chen Chen
• Host Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil

Abstract

The project aims to develop three main themes in hadron physics employing the QCD Dyson-Schwinger equations in continuum QCD: (i) get the spectrum of baryons of strangeness by using a realistic interaction model; (ii) provide an insightful analysis of the parton distribution functions of the kaon; and (iii) compute the leading-twist parton distribution amplitudes (PDAs) of the nucleon. The analysis and computations proposed are of importance for the understanding of the phenomenon of quark and gluon confinement how is it related to dynamical chiral symmetry breaking, which is responsible for the origin of the vast majority of visible mass in the Universe.

Scientific publications

(16)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

YIN, PEI-LIN; CHEN, CHEN; KREIN, GASTAO; ROBERTS, CRAIG D.; SEGOVIA, JORGE; XU, SHU-SHENG. Masses of ground-state mesons and baryons, including those with heavy quarks. Physical Review D, v. 100, n. 3, AUG 9 2019. (13/01907-0, 15/21550-4)

CHEN, CHEN; KREIN, GASTAO; ROBERTS, CRAIG D.; SCHMIDT, SEBASTIAN M.; SEGOVIA, JORGE. Spectrum and structure of octet and decuplet baryons and their positive-parity excitations. Physical Review D, v. 100, n. 5, SEP 13 2019. (13/01907-0, 15/21550-4)

SERNA, FERNANDO E.; CHEN, CHEN; EL-BENNICH, BRUNO. Interplay of dynamical and explicit chiral symmetry breaking effects on a quark. Physical Review D, v. 99, n. 9, MAY 20 2019. (16/03154-7, 15/21550-4)

CHEN, CHEN; EL-BENNICH, BRUNO; ROBERTS, CRAIG D.; SCHMIDT, SEBASTIAN M.; SEGOVIA, JORGE; WAN, SHAOLONG. Structure of the nucleon's low-lying excitations. Physical Review D, v. 97, n. 3, FEB 15 2018. (15/21550-4)

LU, YA; CHEN, CHEN; ROBERTS, CRAIG D.; SEGOVIA, JORGE; XU, SHU-SHENG; ZONG, HONG-SHI. Parity partners in the baryon resonance spectrum. PHYSICAL REVIEW C, v. 96, n. 1, p. 11-pg., 2017-07-28. (15/21550-4)

CHEN, CHEN; LU, YA; BINOSI, DANIELE; ROBERTS, CRAIG D.; RODRIGUEZ-QUINTERO, JOSE; SEGOVIA, JORGE. Nucleon-to-Roper electromagnetic transition form factors at large Q(2). PHYSICAL REVIEW D, v. 99, n. 3, p. 13-pg., 2019-02-19. (15/21550-4)

SERNA, FERNANDO E.; CHEN, CHEN; EL-BENNICH, BRUNO. Interplay of dynamical and explicit chiral symmetry breaking effects on a quark. PHYSICAL REVIEW D, v. 99, n. 9, p. 9-pg., 2019-05-20. (16/03154-7, 15/21550-4)

LU, Y.; CHEN, C.; CUI, Z-F; ROBERTS, C. D.; SCHMIDT, S. M.; SEGOVIA, J.; ZONG, H-S. Transition form factors: gamma* plus p -> Delta(1232), Delta(1600). PHYSICAL REVIEW D, v. 100, n. 3, p. 13-pg., 2019-08-05. (15/21550-4)

YIN, PEI-LIN; CHEN, CHEN; KREIN, GASTAO; ROBERTS, CRAIG D.; SEGOVIA, JORGE; XU, SHU-SHENG. Masses of ground-state mesons and baryons, including those with heavy quarks. PHYSICAL REVIEW D, v. 100, n. 3, p. 19-pg., 2019-08-09. (15/21550-4, 13/01907-0)

CHEN, CHEN; KREIN, GASTAO; ROBERTS, CRAIG D.; SCHMIDT, SEBASTIAN M.; SEGOVIA, JORGE. Spectrum and structure of octet and decuplet baryons and their positive-parity excitations. PHYSICAL REVIEW D, v. 100, n. 5, p. 19-pg., 2019-09-13. (15/21550-4, 13/01907-0)

CHEN, CHEN; LU, YA; BINOSI, DANIELE; ROBERTS, CRAIG D.; RODRIGUEZ-QUINTERO, JOSE; SEGOVIA, JORGE. Nucleon-to-Roper electromagnetic transition form factors at large Q(2). Physical Review D, v. 99, n. 3, FEB 19 2019. (15/21550-4)

LU, YA; CHEN, CHEN; ROBERTS, CRAIG D.; SEGOVIA, JORGE; XU, SHU-SHENG; ZONG, HONG-SHI. Parity partners in the baryon resonance spectrum. Physical Review C, v. 96, n. 1, JUL 28 2017. (15/21550-4)

LU, Y.; CHEN, C.; CUI, Z-F; ROBERTS, C. D.; SCHMIDT, S. M.; SEGOVIA, J.; ZONG, H-S. Transition form factors: gamma{*} plus p -> Delta(1232), Delta(1600). Physical Review D, v. 100, n. 3, AUG 5 2019. (15/21550-4)

QIN, SI-XUE; CHEN, CHEN; MEZRAG, CEDRIC; ROBERTS, CRAIG D.. Off-shell persistence of composite pions and kaons. Physical Review C, v. 97, n. 1, JAN 17 2018. (15/21550-4)

CHEN, CHEN; EL-BENNICH, BRUNO; ROBERTS, CRAIG D.; SCHMIDT, SEBASTIAN M.; SEGOVIA, JORGE; WAN, SHAOLONG. Structure of the nucleon's low-lying excitations. PHYSICAL REVIEW D, v. 97, n. 3, p. 13-pg., 2018-02-15. (15/21550-4)

QIN, SI-XUE; CHEN, CHEN; MEZRAG, CEDRIC; ROBERTS, CRAIG D.. Off-shell persistence of composite pions and kaons. PHYSICAL REVIEW C, v. 97, n. 1, p. 7-pg., 2018-01-17. (15/21550-4)