





Item type: | Article | ||||
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Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
Place of Publication: | COLLEGE PK | ||||
Volume: | 90 | ||||
Number of Issue or Book Chapter: | 5 | ||||
Date: | 2003 | ||||
Institutions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer | ||||
Identification Number: |
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Keywords: | COLOR-TRANSPARENCY; VECTOR-MESONS; COHERENCE LENGTH; WAVE-FUNCTION; SCATTERING; ELECTROPRODUCTION; LEPTOPRODUCTION; PHOTOPRODUCTION; PHOTON; QCD; | ||||
Dewey Decimal Classification: | 500 Science > 530 Physics | ||||
Status: | Published | ||||
Refereed: | Yes, this version has been refereed | ||||
Created at the University of Regensburg: | Yes | ||||
Item ID: | 72417 |
Abstract
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to the lifetime of hadronic fluctuations of the virtual photon, and squared four-momentum of the virtual photon (-Q(2)). The ratio of N-14 to H-1 cross sections per nucleon, called nuclear transparency, ...

Abstract
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to the lifetime of hadronic fluctuations of the virtual photon, and squared four-momentum of the virtual photon (-Q(2)). The ratio of N-14 to H-1 cross sections per nucleon, called nuclear transparency, was found to increase (decrease) with increasing l(c) for coherent (incoherent) rho(0) electroproduction. For fixed l(c), a rise of nuclear transparency with Q(2) is observed for both coherent and incoherent rho(0) production, which is in agreement with theoretical calculations of color transparency.
Metadata last modified: 19 Dec 2024 15:31