One-Loop Corrections to Dihadron Production in DIS at Small x

Author

Filip Bergabo, The Graduate Center, City University of New YorkFollow

Date of Degree

2-2023

Document Type

Dissertation

Degree Name

Ph.D.

Program

Physics

Advisor

Jamal Jalilian-Marian

Committee Members

Peter Orland

Adrian Dumitru

Stefan Bathe

Brian Tiburzi

Subject Categories

Elementary Particles and Fields and String Theory | Nuclear

Keywords

Quantum Chromodynamics, Color Glass Condensate, Deep Inelastic Scattering, Small x, Gluon Saturation, High Energy Physics, Particle Physics, Nuclear Physics

Abstract

We calculate the one-loop corrections to dihadron production in Deep Inelastic Scattering (DIS) at small x using the Color Glass Condensate formalism. We show that all UV and soft singularities cancel while the collinear divergences are absorbed into quark and anti quark-hadron fragmentation functions. Rapidity divergences lead to JIMWLK evolution of dipoles and quadrupoles describing multiple-scatterings of the quark anti-quark dipole on the target proton/nucleus. The resulting cross section is finite and can be used for phenomenological studies of dihadron angular correlations at small x in a future Electron-Ion Collider (EIC).

Recommended Citation

Bergabo, Filip, "One-Loop Corrections to Dihadron Production in DIS at Small x" (2023). CUNY Academic Works.
https://academicworks.cuny.edu/gc_etds/5212