Direct e+e- pair production by 360 GeV/c π- in hydrogen

E. W. Anderson, H. B. Crawley, A. Firestone, W. J. Kernan, D. L. Parker, B. L. Young, R. G. Glasser, D. G. Hill, M. Kazuno, G. McClellan, H. Price, B. Sechi-Zorn, G. A. Snow, F. Svrcek, B. Y. Oh, M. Pratap, G. Sionakides, G. A. Smith, J. Whitmore, N. N. BiswasR. L. Bolduc, P. D. Higgins, J. M. Bishop, N. M. Cason, V. P. Kenney, D. S. Rhines, W. D. Shephard

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Abstract

We report on direct production of positron-electron pairs by 360-GeV/c pions incident on the Fermilab 30-in. hydrogen bubble chamber. These high-energy data are the first with liquid hydrogen, and are shown to be in agreement with quantum-electrodynamic calculations. For the region of four-momentum transfer considered, quantum electrodynamics predicts essentially equal contributions from production in the Coulomb field of the nucleus and the atomic electron.

Original languageEnglish (US)
Pages (from-to)1593-1596
Number of pages4
JournalPhysical review letters
Volume37
Issue number24
DOIs
StatePublished - 1976

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    Anderson, E. W., Crawley, H. B., Firestone, A., Kernan, W. J., Parker, D. L., Young, B. L., Glasser, R. G., Hill, D. G., Kazuno, M., McClellan, G., Price, H., Sechi-Zorn, B., Snow, G. A., Svrcek, F., Oh, B. Y., Pratap, M., Sionakides, G., Smith, G. A., Whitmore, J., ... Shephard, W. D. (1976). Direct e+e- pair production by 360 GeV/c π- in hydrogen. Physical review letters, 37(24), 1593-1596. https://doi.org/10.1103/PhysRevLett.37.1593