Phys. Rev. D 50, 5484 - 5490 (1994)

Measurement of the cross section for γγ→pp¯

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M. Artuso et al.
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Received 1 September 1993

A measurement of the cross section for γγ→pp¯ is performed at two-photon center-of-mass energies between 2.00 and 3.25 GeV. These results are obtained using e+e-e+e-pp¯ events selected from 1.31 fb-1 of data taken with the CLEO II detector. The measured cross section is in reasonable agreement with previous measurements and is in excellent agreement with recent calculations based on a diquark model. However, leading order QCD calculations performed using the Brodsky-Lepage formalism are well below the measured cross section.


©1994 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.50.5484
DOI: 10.1103/PhysRevD.50.5484
PACS: 13.65.+i, 12.38.Qk, 13.60.Rj

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