Journal article
Measurement of η′(958) formation in two-photon collisions at LEP1
Abstract
The formation of the η′ in the reaction e+e−→e+e−η′→e+e−π+π−γ has been measured by the L3 detector at a centre-of-mass energy of 91GeV. The radiative width of the η′ has been found to be Γγγ=4.17±0.10(stat.)±0.27(sys.)keV. The Q2 dependence of the η′ formation cross section has been measured for Q2≤10GeV2 and the η′ electromagnetic transition form factor has been determined. The form factor can be parametrised by a pole form with …
Authors
Collaboration L; Acciarri M; Adriani O; Aguilar-Benitez M; Ahlen S; Alcaraz J; Alemanni G; Allaby J; Aloisio A; Alverson G
Journal
Physics Letters B, Vol. 418, No. 3-4, pp. 399–410
Publisher
Elsevier
Publication Date
February 1998
DOI
10.1016/s0370-2693(97)01219-7
ISSN
0370-2693