Dokumentenart: | Artikel | ||||
---|---|---|---|---|---|
Titel eines Journals oder einer Zeitschrift: | Physical Review Letters | ||||
Verlag: | AMERICAN PHYSICAL SOC | ||||
Ort der Veröffentlichung: | COLLEGE PK | ||||
Band: | 90 | ||||
Nummer des Zeitschriftenheftes oder des Kapitels: | 5 | ||||
Datum: | 2003 | ||||
Institutionen: | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Andreas Schäfer | ||||
Identifikationsnummer: |
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Stichwörter / Keywords: | COLOR-TRANSPARENCY; VECTOR-MESONS; COHERENCE LENGTH; WAVE-FUNCTION; SCATTERING; ELECTROPRODUCTION; LEPTOPRODUCTION; PHOTOPRODUCTION; PHOTON; QCD; | ||||
Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
Status: | Veröffentlicht | ||||
Begutachtet: | Ja, diese Version wurde begutachtet | ||||
An der Universität Regensburg entstanden: | Ja | ||||
Dokumenten-ID: | 72417 |
Zusammenfassung
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, ...
Zusammenfassung
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.
Metadaten zuletzt geändert: 19 Dez 2024 15:31