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Updated: Jun 4, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Nonperturbative Effects in Energy Correlators: From Characterizing Confinement Transition to Improving α_{s}
Kyle Lee1, Aditya Pathak2, Iain W Stewart1
1Center for Theoretical Physics, <a href="https://ror.org/042nb2s44">Massachusetts Institute of Technology</a>, Cambridge, Massachusetts 02139, USA.
Abstract:
Energy correlators provide a powerful observable to study fragmentation dynamics in QCD. We demonstrate that the leading nonperturbative corrections for projected N-point energy correlators are described by the same universal parameter for any N, which has already been determined from other event shape fits. Including renormalon-free nonperturbative corrections substantially improves theoretical predictions of energy correlators, notably the transition into the confining region at small angles. Nonperturbative corrections are shown to have a significant impact on α_{s} extractions.
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