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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 543280.0, MPI für Physik / MPI für Physik
Measurement of the Cross-Section for the Process Gamma-Gamma to Proton-Antiproton at sqrt(s_ee) = 183 - 189 GeV with the OPAL Detector at LEP
Authors:Barillari, Teresa
Date of Publication (YYYY-MM-DD):2004
Title of Journal:Nuclear Physics B - Proceedings Supplements
Journal Abbrev.:Nucl.Phys.B (Proc.Suppl.)
Issue / Number:126
Start Page:301
End Page:306
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The exclusive production of proton-antiproton pairs in the collisions of two quasi-real photons has been studied using data taken at sqrt(s_ee) = 183 GeV and 189 GeV with the OPAL detector at LEP. Results are presented for proton-antiproton invariant masses, W, in the range 2.15 < W < 3.95 GeV. The cross-section measurements are compared with previous data and with recent analytic calculations based on the quark-diquark model.
Classification / Thesaurus:OPAL
Comment of the Author/Creator:6 pages, 8 figures, Photon 2003 conference proceedings
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2003-23
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/hep-ex/0307066
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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