2–8 Nov 2025
TIFR Mumbai
Asia/Kolkata timezone

Meson spectrum and low-energy constants in large-$N$ QCD

4 Nov 2025, 17:20
20m
AG77

AG77

Speaker

Claudio Bonanno (IFT UAM/CSIC Madrid)

Description

I will present new non-perturbative results about the meson spectrum and the low-energy constants of QCD in the 't Hooft large-$N$ limit, $N \to \infty$ with $N_{\rm f}/N \to 0$. These are obtained from lattice Monte Carlo simulations of the Twisted Eguchi-Kawai (TEK) model up to $N=841$.

More precisely, I will discuss the determination of radial Regge trajectories in the $\pi$ and $\rho$ channels; and the computation of the coefficients of the $1/N$ expansion of the chiral condensate, of the pion decay constant, and of the NLO coupling $\bar{\ell}_4$ up to $O(1/N^3)$ from the combination of TEK and standard finite-$N$ results.

Parallel Session (for talks only) Vacuum structure and confinement

Author

Claudio Bonanno (IFT UAM/CSIC Madrid)

Co-authors

Dr Margarita García Pérez (IFT UAM/CSIC Madrid) Prof. Antonio González-Arroyo (UAM & IFT UAM/CSIC Madrid) Prof. Ken-Ichi Ishikawa (Hiroshima University) Prof. Masanori Okawa (Hiroshima University)

Presentation materials

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