Studies of Hadronization Mechanisms using Pion Electroproduction in Deep Inelastic Scattering from Nuclei

Atomic nuclei can be used as spatial analyzers of the hadronization process in semi-inclusive deep inelastic scattering. The study of this process using fully-identified final state hadrons began with the HERMES program in the late 1990s, and is now continuing at Jefferson Lab. In the measurement de...

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Bibliographic Details
Published in:arXiv.org 2011-10
Main Authors: Brooks, Will, Hakobyan, Hayk, Peña, Cristian, Arratia, Miguel, Valdés, Constanza
Format: Article
Language:English
Subjects:
Analyzers
Deuterium
Electron beams
Hadrons
Inelastic scattering
Large Hadron Collider
Mathematical analysis
Nuclei (nuclear physics)
Pions
Relativistic Heavy Ion Collider
Transverse momentum
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Summary:Atomic nuclei can be used as spatial analyzers of the hadronization process in semi-inclusive deep inelastic scattering. The study of this process using fully-identified final state hadrons began with the HERMES program in the late 1990s, and is now continuing at Jefferson Lab. In the measurement described here, electrons and positive pions were measured from a 5 GeV electron beam incident on targets of liquid deuterium, C, Fe, and Pb using CLAS in Hall B. The broadening of the transverse momentum of positive pions has been studied in detail as a function of multiple kinematic variables, and interpreted in terms of the transport of the struck quark through the nuclear systems. New insights are being obtained into the hadronization process from these studies; and experiments of this type can be relevant for the interpretation of jet quenching and proton-nucleus collisions at RHIC and LHC. These measurements will be extended in the next few years with the approved JLab experiment E12-06-117, and later at a future Electron-Ion Collider.
ISSN:2331-8422
DOI:10.48550/arxiv.1110.3268