This title appears in the Scientific Report :
2005
Please use the identifier:
http://hdl.handle.net/2128/1700 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.71.094011 in citations.
Okubo-Zweig-Iizuka rule violation in photoproduction
Okubo-Zweig-Iizuka rule violation in photoproduction
We investigate OZI rule violation in omega and phi-meson photoproduction off nucleons. Data on the total cross sections indicate a large phi/omega ratio of about 0.8 at the maximal available photon energy that is in good agreement with expectations from QCD. On the other hand, data at large four-mom...
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Personal Name(s): | Sibirtsev, A. |
---|---|
Meissner, U.G. / Thomas, A. W. | |
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-TH |
Published in: | Physical Review D Physical review / D, 71 71 (2005 2005) 9 9, S. 094011 094011 |
Imprint: |
[S.l.]
Soc.
2005
2005-05-13 2005-05-01 |
Physical Description: |
094011 |
DOI: |
10.1103/PhysRevD.71.094011 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
Physical Review D
71 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.71.094011 in citations.
We investigate OZI rule violation in omega and phi-meson photoproduction off nucleons. Data on the total cross sections indicate a large phi/omega ratio of about 0.8 at the maximal available photon energy that is in good agreement with expectations from QCD. On the other hand, data at large four-momentum transfer exhibit a ratio of about 0.07, showing that the perturbative QCD regime is not approached at vertical bar t vertical bar > 2 GeV2 and photon energies E-gamma < 4 GeV. The anomanously large phi/omega ratio at low energies, that is close to the reaction threshold, remains to be explained within nonperturbative QCD. |