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A New Upper Limit for the Decay Rate gamma (f' --> pi + pi)

Authors
  • Beusch, W.
  • Birman, A.
  • Websdale, D.
  • Wetzel, W.
Publication Date
Jan 01, 1975
Identifiers
DOI: 10.1016/0370-2693(75)90539-0
OAI: oai:inspirehep.net:2791
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

Data from an experiment on π − p → K S 0 K S 0 n are used to compare the K K D-wave at the f′(1516) mass with that at the f(1270) mass. The ratio yields an upper limit for f′ production by ππ scattering followed by decay into K K . This limit can be expressed by Γ( f ′ → ππ) Γ( f ′ → all ) ⪅ 1% or Γ( f ′ → ππ) Γ(f → ππ) ≤ 1/400 ; this indeicate a suppression of the two-pion decay of the f′, stronger than the well-known suppression of the φ (1019) → ϱπ decay.

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