Parton evolution model and its explanation of the EMC effect and the nuclear Drell-Yan process
Creators
- 1. Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky, KY 40506 (United States)
- 2. Institute of High Energy Physics, Academia Sinica, Beijing 100039 (China)
- 3. Center of Theoretical Physics, CCAST (World Laboratory), Beijing 100080 (China)
- 4. Department of Physics, Nanjing Normal University, Nanjing 210024 (China)
Description
The evolution of partons in the nuclear environment is investigated. It is shown that the evolution of valence and sea (including charm) quarks and gluons is determined by different interaction vertex factors and their effects on their own momentum distributions are also different. By using this parton evolution model, together with the nuclear shadowing effect due to the spatial overlap of partons from neighboring nucleons in the nucleus, the experimental data of the EMC effect and the nuclear Drell-Yan process can be well explained. Therefore, the change of the momentum distribution of partons in the bound nucleon caused by the evolution of partons in the nuclear environment is possibly the origin of the EMC effect. The similarities and differences between the parton evolution model and the Q2-rescaling model are discussed. ((orig.))
Additional details
Publishing Information
- Journal Title
- Physics Reports
- Journal Volume
- 242
- Journal Issue
- 4-6
- Journal Page Range
- p. 505-517.
- ISSN
- 0370-1573
- CODEN
- PRPLCM
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 26012944
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ANTILEPTONS; BOUND STATE; CALCIUM 40 TARGET; CARBON 12 TARGET; CHARM PARTICLES; COPPER 64 TARGET; DEEP INELASTIC SCATTERING; DEUTERIUM TARGET; DIFFERENTIAL CROSS SECTIONS; DRELL MODEL; ELECTRON REACTIONS; EMC EFFECT; GLUON MODEL; GLUONS; HADRON REACTIONS; INCLUSIVE INTERACTIONS; IRON 56 TARGET; LAGRANGIAN FIELD THEORY; LEPTON REACTIONS; MUON REACTIONS; NUCLEAR MATTER; NUCLEAR STRUCTURE; NUCLEONS; PAIR PRODUCTION; PARTICLE STRUCTURE; PARTON MODEL; PARTONS; QUARK MODEL; QUARKS; RELATIVISTIC RANGE; SHADOW EFFECT; STRUCTURE FUNCTIONS; TIN 116 TARGET; TUNGSTEN 184 TARGET; VERTEX FUNCTIONS
- Descriptors DEC
- ANTIMATTER; ANTIPARTICLES; BARYONS; BOSONS; COMPOSITE MODELS; CROSS SECTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; FUNCTIONS; HADRONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LEPTONS; MATHEMATICAL MODELS; MATTER; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; POSTULATED PARTICLES; QUANTUM FIELD THEORY; SCATTERING; TARGETS