2010/08/16 by N. Fomin, J. Arrington, D. B. Day +74 · 33 citations
Engineering · Physics and Astronomy · #Deep inelastic scattering #Inelastic scattering #Muon #Neutrino #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Scattering #Superconducting Materials and Applications #nucl-ex
paper · pdf · doi:10.1103/physrevlett.105.212502
published in Physical Review Letters 105(21), 212502 (American Physical Society) · 5 pages, 4 figures, to be submitted to physical review
arxiv created 2010/08/16 · openalex publication_date 2010/11/17 · arxiv updated 2010/12/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present new data on electron scattering from a range of nuclei taken in Hall C at Jefferson Lab. For heavy nuclei, we observe a rapid falloff in the cross section for x>1, which is sensitive to short-range contributions to the nuclear wave function, and in deep inelastic scattering corresponds to probing extremely high momentum quarks. This result agrees with higher energy muon scattering measurements, but is in sharp contrast to neutrino scattering measurements which suggested a dramatic enhancement in the distribution of the "superfast" quarks probed at x>1. The falloff at x>1 is noticeably stronger in 2H and 3He, but nearly identical for all heavier nuclei.