Journal article
Exclusive production of pp¯π+π- in photon-photon collisions
Abstract
We report a measurement of the e+e-→e+e-pp¯π+π- process with the TPC/Two-Gamma facility at the PEP e+e- storage ring at SLAC. Forty-five pp¯π+π- events were identified in data corresponding to an integrated e+e- luminosity of 142 pb-1. The cross section for γγ→pp¯π+π- is given both as a function of the γγ center-of-mass energy Wγγ, with Wγγ between 2.5 and 5.5 GeV, and as a function of the in variant mass squared q2 of one of the photons, with …
Authors
Aihara H; Alston-Garnjost M; Avery RE; Barbaro-Galtieri A; Barker AR; Barnett BA; Bauer DA; Bay A; Bobbink GJ; Buchanan CD
Journal
Physical Review D, Vol. 40, No. 9, pp. 2772–2776
Publisher
American Physical Society (APS)
Publication Date
November 1, 1989
DOI
10.1103/physrevd.40.2772
ISSN
2470-0010