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- W2485293752 abstract "We present a new measurement of the cross section for the process e/sup +/e/sup /minus// /yields/ e/sup +/e/sup /minus///pi//sup +//pi//sup /minus// at center-of-mass energy 29 GeV for invariant pion pair masses M/sub /phi//phi// between 350 MeV/c/sup 2/ and 3.5 GeV/c/sup 2/. For M/sub /pi//pi// above 2.1 GeV/c/sup 2/, we find approximate agreement with the hard-scattering prediction of Brodsky and Lepage. In the low mass region, we observe the f/sub 2/(1270), and measure its radiative width to be 3.15 /plus minus/ .04 /plus minus/ .39 keV. We also observe an enhancement in the /pi//sup +//pi//sup /minus// spectrum near 1 GeV. We hypothesize that it is the f/sub 0/(975) and determine it's radiative width to be 0.29 /plus minus/ .07 /plus minus/ .12 keV. 48 refs." @default.
- W2485293752 created "2016-08-23" @default.
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- W2485293752 date "1989-05-01" @default.
- W2485293752 modified "2023-10-17" @default.
- W2485293752 title "Two photon production of pion pairs in e/sup +/e/sub /minus// collisions at 29 GeV" @default.
- W2485293752 doi "https://doi.org/10.2172/5762385" @default.
- W2485293752 hasPublicationYear "1989" @default.
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