Holographic QCD, exotic mesons and finite temperature corrections

• Grant number: 22/15325-1
• Support Opportunities: Scholarships in Brazil - Master
• Start date: March 01, 2023
• End date: July 31, 2025
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Roldão da Rocha Junior
• Grantee: Bruno Pinheiro Toniato
• Host Institution: Centro de Matemática, Computação e Cognição (CMCC). Universidade Federal do ABC (UFABC). Santo André , SP, Brazil
• Associated research grant: 21/01089-1 - Cherenkov Telescope Array: construction and first discoveries, AP.ESP
• Associated scholarship(s): 23/09097-9 - Exotic mesons at finite temperature and diffusion of heavy quarks in a magnetic field, BE.EP.MS

Abstract

This project will develop and implement theoretical and phenomenological aspects of AdS/CFT holographic correspondences and AdS/QCD. We will study generalized black branes in AdS5 and derive the respective corrections to the Navier-Stokes equations in the dual field theory, containing soft hair, with additional diffusion and coupling terms including the Ricci curvature. Spectral functions will be computed, as well as the transport and response coefficients, and their consequences will be explored in the approach of the dissociation of several types of mesons, including exotic mesons. We will prioritize the soft-wall AdS/QCD model, where we will explore hybrid configurations in the light meson sector containing a quark, an antiquark and an excited gluon, studying the properties of such states and their stability at finite temperature. We will also study properties of such states and their stability at finite temperature. We will study its dissociation at a different temperature compared to other states. We will also investigate, in an extended AdS/QCD model, exotic mesons, including hadrocharmonium, hadronic molecules and tetraquarks. (AU)

Scientific publications

(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)

TONIATO, BRUNO; DUDAL, DAVID; MAHAPATRA, SUBHASH; DA ROCHA, ROLDAO; JENA, SIDDHI SWARUPA. Holographic QCD model for heavy and exotic mesons at finite density: A self-consistent dynamical approach. PHYSICAL REVIEW D, v. 111, n. 12, p. 26-pg., 2025-06-27. (21/01089-1, 24/05676-7, 22/15325-1, 23/09097-9)

JENA, SIDDHI SWARUPA; BARMAN, JYOTIRMOY; TONIATO, BRUNO; DUDAL, DAVID; MAHAPATRA, SUBHASH. A dynamical Einstein-Born-Infeld-dilaton model and holographic quarkonium melting in a magnetic field. Journal of High Energy Physics, v. N/A, n. 12, p. 34-pg., 2024-12-12. (22/15325-1, 23/09097-9)