Journal article
Exclusive Production of K+K-π+π- in Photon-Photon Collisions
Abstract
We report a measurement of the reaction γγ→K+K-π+π- in both tagged and untagged events at PEP. The cross section rises with invariant γγ mass to about 15 nb at 2 GeV and falls slowly at higher masses. We find clear evidence for the processes γγ→φπ+π- and γγ→K*0(892)Kπ. Upper limits (95% C.L.) of 1.5 and 5.7 nb in the mass range from 1.7 to 3.7 GeV are obtained for φρ0 and K*0K¯*0 production, respectively.
Authors
Aihara H; Alston-Garnjost M; Armitage JC; Bakken JA; Barbaro-Galtieri A; Barker AR; Barnes AV; Barnett BA; Bengtsson H-U; Bintinger DL
Journal
Physical Review Letters, Vol. 54, No. 24, pp. 2564–2567
Publisher
American Physical Society (APS)
Publication Date
June 17, 1985
DOI
10.1103/physrevlett.54.2564
ISSN
0031-9007