2019/04/30 by Daniel Gutiérrez-Reyes, Daniel Gutierrez-Reyes, Ignazio Scimemi +2 · 1 citation
Physics and Astronomy · #Deep inelastic scattering #Factorization #Fragmentation function #HERA #Hadron #High-Energy Particle Collisions Research #Inelastic scattering #Jet (fluid) #Mechanics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Rapidity #Scattering #hep-ph #nucl-th
paper · pdf · doi:10.1007/jhep10(2019)031
published as JHEP 1910 (2019) 031 · 41 pages, 9 figures. v4: fixed an important typo in table 1 concerning the scaling of modes, together with minor typos across the text
openalex publication_date 2019/10/01 · arxiv created 2020/11/09 · arxiv updated 2020/11/10 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/06
A bstract The extraction of transverse momentum dependent distributions (TMDs) in semi-inclusive deep inelastic scattering (SIDIS) is complicated by the presence of both initial- and final-state nonperturbative physics. We recently proposed measuring jets (in- stead of hadrons) as a solution, showing that for the Winner-Take-All jet axis the same factorization formulae valid for hadrons applied to jets of arbitrary size. This amounts to simply replacing TMD fragmentation functions by our TMD jet functions. In this paper we present the calculation of these jet functions at one loop. We obtain phenomenological results for e + e − → dijet (Belle II, LEP) and SIDIS (HERA, EIC) with a jet, building on the arTeMiDe code. Surprisingly, we find that the limit of large jet radius describes the full R results extremely well, and we extract the two-loop jet function in this limit using Event2, allowing us to achieve N 3 LL accuracy. We demonstrate the perturbative convergence of our predictions and explore the kinematic dependence of the cross section. Finally, we investigate the sensitivity to nonperturbative physics, demonstrating that jets are a promising probe of proton structure.