Multiple pion production in K+ -proton collisions at 3.5 GeV/c

Journal Article (Journal Article)

An analysis is made of K+ proton interactions in which three or four pions are produced. The experiment was conducted in the Brookhaven 80-inch bubble chamber using an incident beam of 3.5 GeV/c K+ mesons. Events of the type K+ + p → Ko + p + (3 or 4π)+ were selected from the four-prong plus Vo topology. A search is made in these reactions for the production of excited states of the K meson which decay with the emission of one or more pions. The kappa (725) and K* (892) are discussed in some detail. Evidence is presented for a K* resonance of mass 1305 MeV. Upper limits are measured for the Kω and Kη decays of the K*(1420). A K*+ (892)π+ enhancement is observed in this data at 1180 MeV. In addition to a study of K meson excited states, some properties of the ω and η mesons are studied in a production process with very little background. © 1969.

Full Text

Duke Authors

Cited Authors

  • Erwin, AR; Walker, WD; Goshaw, AT; Weinberg, A

Published Date

  • February 15, 1969

Published In

Volume / Issue

  • 9 / 3

Start / End Page

  • 364 - 402

International Standard Serial Number (ISSN)

  • 0550-3213

Digital Object Identifier (DOI)

  • 10.1016/0550-3213(69)90135-7

Citation Source

  • Scopus