Pith. sign in

REVIEW

Threshold enhancement in eta photoproduction from 2H and 4He

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv nucl-ex/0304005 v2 pith:XDFUF2M7 submitted 2003-04-02 nucl-ex

Threshold enhancement in eta photoproduction from 2H and 4He

V. Hejny , J. Weiss , P. Achenbach , J. Ahrens , J.R.M. Annand , R. Beck , M. Kotulla , B. Krusche
show 13 more authors
V. Kuhr R. Leukel I.J.D. MacGregor V. Metag R. Novotny V. Olmos de Leon F. Rambo A. Schmidt M. Schumacher U. Siodlaczek H. Stroeher F. Wissmann M. Wolf
This is my paper
classification nucl-ex
keywords eta-mesonsbeencrosseffectsenhancementfinalinteractionmodel
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

The photoproduction of eta-mesons from 2H and 4He has been studied for energies close to the production thresholds. The experiments were carried out with the tagged photon beam of the Mainz MAMI accelerator. The eta-mesons were detected via their two photon decays with the electromagnetic calorimeter TAPS. Total cross sections, angular and momentum distributions of the eta-mesons have been determined for both reactions. The total cross sections in the threshold region show a large enhancement over the predictions of a participant - spectator model, indicating significant final state interaction effects. The results are compared to recent model calculations taking into account nucleon-nucleon and nucleon-eta final state interaction effects on different levels of sophistication.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.