2017/11/30 by Juan V. Guerrero, Alberto Accardi · 14 citations
Physics and Astronomy · #Archaeology #Black Holes and Theoretical Physics #Deep inelastic scattering #Economics #Gauge (firearms) #Gauge theory #Geography #Inelastic scattering #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scale invariance #Scattering #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.97.114012
published in Physical review. D/Physical review. D. 97(11) (American Physical Society) · 13 pages, 8 figures
openalex publication_date 2018/06/08 · arxiv created 2018/11/03 · arxiv updated 2018/11/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
This paper focuses on hadron mass effects in calculations of semi-inclusive kaon production in lepton-Deuteron deeply inelastic scattering at HERMES and COMPASS kinematics. In the collinear factorization framework, the corresponding cross section is shown to factorize, at leading order and leading twist, into products of parton distributions and fragmentation functions evaluated in terms of kaon- and nucleon-mass-dependent scaling variables, and to respect gauge invariance. It is found that hadron mass corrections for integrated kaon multiplicities sizeably reduce the apparent large discrepancy between measurements of K++K^\ensuremath- multiplicities performed by the two collaborations, and fully reconcile their K+/K^\ensuremath- ratios.