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.

Castiglioni, L., Penati, S., Tenser, M., Trancanelli, D. (2024). Interpolating bremsstrahlung function in ABJM model. PHYSICAL REVIEW D, 109(12) [10.1103/PhysRevD.109.126010].

Interpolating bremsstrahlung function in ABJM model

Penati S.
;
2024

Abstract

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.
Articolo in rivista - Articolo scientifico
Chern-Simons theories, Wilson, ’t Hooft and Polyakov loops, Bremsstrahlung function, Renormalization Group
English
2024
109
12
126010
open
Castiglioni, L., Penati, S., Tenser, M., Trancanelli, D. (2024). Interpolating bremsstrahlung function in ABJM model. PHYSICAL REVIEW D, 109(12) [10.1103/PhysRevD.109.126010].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/489179
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