Search for Correlated Narrow-Peak Structure in the Two-Photon Spectrum from 6-MeV/ Nucleon U+Th Collisions

verfasst von

W. E. Meyerhof, J. D. Molitoris, K. Danzmann, D. W. Spooner, F. S. Stephens, R. M. Diamond, E. M. Beck, A. Schäfer, B. M̈üller

Abstract

We have searched for 180°(c.m.) correlated equal-energy two-photon decays produced in 6-MeV/nucleon U + Th collisions. In the summed-energy region between 1.5 and 1.8 MeV, we set an upper limit of 3 × 10-10 decay per projectile for the yield integrated over a target thickness of 3.6 mg/cm2, which corresponds to a cross section of 3 × 10-29 cm2 averaged over the target. This can be compared to a production cross section of (1-2) × 10-28 cm2, averaged over a target thickness of 0.3-0.6 mg/cm2 found by others for correlated electron-positron pairs in the same reaction.

Externe Organisation(en)

Stanford University
University of California at Berkeley
Goethe-Universität Frankfurt am Main

Typ

Artikel

Journal

Physical review letters

Band

57

Seiten

2139-2142

Anzahl der Seiten

4

ISSN

0031-9007

Publikationsdatum

27.10.1986

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

http://hdl.handle.net/11858/00-001M-0000-0013-5DCB-D (Zugang: Offen)
https://doi.org/10.1103/PhysRevLett.57.2139 (Zugang: Geschlossen)