On Regge kinematics in SCET
John F. Donoghue, Daniel Wyler
TL;DR
This paper explores the kinematics of Reggeons within the framework of SCET, addressing the complex multi-scale problem of Reggeization and its relation to Glauber and Coulomb regions in high-energy scattering.
Contribution
It provides a detailed analysis of Regge kinematics in SCET, highlighting challenges and proposing insights into multi-scale Reggeization processes.
Findings
Reggeization involves strongly-ordered collinear emissions
Regge exchange occurs in Glauber or Coulomb regions
The problem is multi-scale and complex within SCET
Abstract
We discuss the kinematics of the particles that make up a Reggeon in field theory, using the terminology of the Soft Collinear Effective Theory (SCET). Reggeization sums a series of strongly-ordered collinear emissions resulting in an overall Reggeon exchange that falls in the Glauber or Coulomb kinematic region. This is an extremely multi-scale problem and appears to fall outside of the usual organizing scheme of SCET.
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