Inclusive baryon production in e+e- annihilation

M. Piccolo, I. Peruzzi, D. Lüke, V. Lüth, B. Richter, G. S. Abrams, M. S. Alam, A. Barbaro-Galtieri, A. M. Boyarski, M. Breidenbach, W. Chinowsky, J. M. Dorfan, R. Ely, G. J. Feldman, J. M. Feller, A. Fong, B. Gobbi, G. Goldhaber, G. Hanson, J. A. JarosA. D. Johnson, J. A. Kadyk, B. P. Kwan, R. R. Larsen, P. LeComte, A. M. Litke, H. Lynch, R. J. Madaras, J. F. Martin, D. H. Miller, H. K. Nguyen, S. I. Parker, J. M. Paterson, M. L. Perl, T. P. Pun, P. A. Rapidis, M. T. Ronan, R. R. Ross, D. L. Scharre, R. F. Schwitters, W. Tanenbaum, T. G. Trippe, G. H. Trilling, V. Vuillemin, J. E. Wiss, D. E. Yount

Research output: Contribution to journalArticlepeer-review


The inclusive production of antiprotons and Λ's in e+e- annihilation has been measured as a function of the c.m. energy in the range 3.7-7.6 GeV. We find that the baryon cross section has a behavior different from the total hadronic production. Our results show a rapid rise in the ratio σp̄σμμ between 4.4 and 5 GeV, consistent with what would be expected from charmed baryon production. Λ̄ production is 10-15% of p̄ production at all energies.

Original languageEnglish (US)
Pages (from-to)1503-1506
Number of pages4
JournalPhysical review letters
Issue number24
StatePublished - 1977
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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