Journal article
Evidence for a Spin-1 Particle Produced by Two Photons
Abstract
Two-photon production of KS0K±π∓ states has been studied by the TPC/Two-Gamma experiment at the SLAC storage ring PEP. A resonance of mass 1.42 GeV was seen when one of the photons was quite virtual but not when both photons were nearly real. Production of a spin-1 meson, which cannot be made by two real photons, would fit these observations. The Q2 dependence of the data in the resonance region agrees with this spin assignment and is …
Authors
Aihara H; Alston-Garnjost M; Avery RE; Barbaro-Galtieri A; Barker AR; Barnes AV; Barnett BA; Bauer DA; Bengtsson H-U; Bintinger DL
Journal
Physical Review Letters, Vol. 57, No. 20, pp. 2500–2503
Publisher
American Physical Society (APS)
Publication Date
November 17, 1986
DOI
10.1103/physrevlett.57.2500
ISSN
0031-9007