Atomic Mass Dependence of Hadron Production in Deep Inelastic Scattering on Nuclei

Abstract

Hadron production in lepton-nucleus deep inelastic scattering is studied in an absorption model. In the proposed model, the early stage of hadronization in the nuclear medium is dominated by prehadron formation and absorption, controlled by flavor-dependent formation lengths and absorption cross sections. Computations for hadron multiplicity ratios are presented and compared with the HERMES experimental data for pions, kaons, protons and antiprotons. The mass-number dependence of hadron attenuation is shown to be sensitive to the underlying hadronization dynamics. Contrary to common expectations for absorption models, a leading term proportional to A^{2/3} is found. Deviations from the leading behavior arise at large mass-numbers and large hadron fractional momenta.

30 pages, 10 figures, v2: minor changes (legend in figs 5 & 6 is added), v3: additional explanations are added, v4: Version combines v3 and the erratum hep-ph/0508036

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Cited by in corpus (24)

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• Transverse Momentum Broadening in Semi-inclusive DIS on Nuclei
• (medium-modified) Fragmentation Functions
• Space-time evolution of hadronization
• Experimental Studies of Hadronization and Parton Propagation in the Space-Time Domain
• Final state interactions and hadron quenching in cold nuclear matter
• Quark energy loss in semi-inclusive deep inelastic scattering of leptons on nuclei
• Quantum-mechanical description of in-medium fragmentation
• Measurement of the nuclear multiplicity ratio for $K_s^0$ hadronization at CLAS
• Spacetime development of in-medium hadronization: Scenario for leading hadrons
• Jet Evolution in the Quark-Gluon Plasma from RHIC to the LHC
• Probing cold nuclear matter with energy correlators
• A-dependence of hadronization in nuclei
• Hadron production in lepton-nuclei interactions at high energies: Monte Carlo generator HARDPING 2.0
• Formation time scaling and hadronization in cold nuclear matter
• Partonic Structure of Light Nuclei
• Hadron formation in semi-inclusive deep inelastic lepton-nucleus scattering
• Higher Twist Effects in Deep Inelastic Scattering on Nuclei
• Average formation length in string model
• Average formation lengths of baryons and antibaryons in string model
• Atomic mass dependence of hadron production in semi-inclusive deep inelastic lepton-nucleus scattering
• In-medium Hadrons - Properties, Interaction and Formation
• Hadronization in cold nuclear matter