Interpolating bremsstrahlung function in ABJM model

Autor(es)

Castiglioni, Luigi ; Penati, Silvia ; Tenser, Marcia ; Trancanelli, Diego

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW D; v. 109, n. 12, p. 24-pg., 2024-06-12.

Resumo

In ABJM theory, enriched RG flows between circular 1 = 6 BPS bosonic and 1 = 2 BPS fermionic Wilson loops have been introduced in L. Castiglioni et al. [L. Castiglioni, S. Penati, M. Tenser, and D. Trancanelli, Interpolating Wilson loops and enriched RG flows, J. High Energy Phys. 08 (2023) 106.]. These flows are triggered by deformations corresponding to parametric 1 = 6 BPS fermionic loops. In this paper, we revisit the study of these operators, but instead of circular contours, we consider an interpolating cusped line and a latitude and study their RG flow in perturbation theory. This allows for the definition of a bremsstrahlung function away from fixed points. We generalize to this case the known cusp/latitude correspondence that relates the bremsstrahlung function to a latitude Wilson loop. We find that away from the conformal fixed points the ordinary identity is broken by the conformal anomaly in a controlled way. From a defect perspective, the breaking of the correspondence can be traced back to the appearance of an anomalous dimension for fermionic operators localized on the defect. As a by-product, we provide a brand new result for the two -loop cusp anomalous dimension of the 1 = 6 BPS fermionic and the 1 = 6 BPS bosonic Wilson lines. (AU)

• Processo FAPESP: 16/01343-7 - ICTP Instituto Sul-Americano para Física Fundamental: um centro regional para física teórica
• Beneficiário: Nathan Jacob Berkovits
• Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais
• Processo FAPESP: 19/21281-4 - Dualidade gravitação / Teoria de gauge
• Beneficiário: Horatiu Stefan Nastase
• Modalidade de apoio: Auxílio à Pesquisa - Temático