NEAR-THRESHOLD PHOTOPRODUCTION OF ETA-MESONS FROM COMPLEX NUCLEI

Authors
ROBIGLANDAU M AHRENS J ANTON G AVERBECK R BECK R FUCHS M GABLER AR HARTER F HARTY PD HEJNY V KRUSCHE B MACGREGOR IJD MCGEORGE JC METAG V NOVOTNY R PEISE J SCHUBERT A SIMON RS STROHER H
Citation
M. Robiglandau et al., NEAR-THRESHOLD PHOTOPRODUCTION OF ETA-MESONS FROM COMPLEX NUCLEI, Physics letters. Section B, 373(1-3), 1996, pp. 45-50
Citations number
24
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
373
Issue
1-3
Year of publication
1996
Pages
45 - 50
Database
ISI
SICI code
0370-2693(1996)373:1-3<45:NPOEFC>2.0.ZU;2-D
Abstract
Total and differential cross sections for photoproduction of eta meson s from C-12, Ca-40, Nb-93 and Pb-nat have been obtained up to 790 MeV incident photon energy at the Mainz Microtron (MAMI) with the TAPS spe ctrometer. The absorption cross section sigma(eta N)(abs) = (30 +/- 2. 5 +/- 6) mb of eta mesons in nuclear matter and the absorption length lambda(eta) = (2.0 +/- 0.2 +/- 0.4) fm are extracted. No significant d epletion of the S(1)1(1535) strength in the eta photoproduction on nuc lei is observed.