Theory Seminars

Dilaton chiral perturbation theory and applications

by Dr Yigal Shamir (Tel Aviv U.)

Europe/Madrid
Seminar Room (IFAE)

Seminar Room

IFAE

Description

(Hybrid Seminar) I review dilaton chiral perturbation theory (dChPT), the effective low-energy theory for the light sector of near-conformal, confining theories. dChPT provides a systematic expansion in both the fermion mass and the distance to the conformal window. It accounts for the pions and the light singlet scalar, the approximate Nambu-Goldstone bosons for chiral and scale symmetry, respectively. A unique feature of dChPT is the existence of a large-mass regime in which the theory exhibits approximate hyperscaling, while the expansion nevertheless remains systematic. I will discuss applications to lattice data, presenting successes as well as directions for future work.

Zoom link: https://us02web.zoom.us/j/89787514064?pwd=SkRaOElqanZRNFZXM2d2SE9PN1d0Zz09

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