title: Search for the CP forbidden decay eta-->4pi(0)
abstract: We report the first determination of the upper limit for the branching ratio of the CP forbidden decay eta-->4pi(0). No events were observed in a sample of 3.0x10(7) eta decays. The experiment was performed with the Crystal Ball multiphoton spectrometer installed in a separated pi(-) beam at the AGS (Alternating Gradient Synchrotron). At the 90% confidence limit, B(eta-->4pi(0))</=6. 9x10(-7).
authors.affiliation: University of California, Los Angeles, Los Angeles, California 90095-1547, USA.
authors.initials: S
authors.lastname: Prakhov
authors.initials: WB
authors.lastname: Tippens
authors.initials: C
authors.lastname: Allgower
authors.initials: V
authors.lastname: Bekrenev
authors.initials: E
authors.lastname: Berger
authors.initials: WJ
authors.lastname: Briscoe
authors.initials: M
authors.lastname: Clajus
authors.initials: JR
authors.lastname: Comfort
authors.initials: K
authors.lastname: Craig
authors.initials: D
authors.lastname: Grosnick
authors.initials: GM
authors.lastname: Huber
authors.initials: D
authors.lastname: Isenhower
authors.initials: N
authors.lastname: Knecht
authors.initials: D
authors.lastname: Koetke
authors.initials: A
authors.lastname: Koulbardis
authors.initials: N
authors.lastname: Kozlenko
authors.initials: S
authors.lastname: Kruglov
authors.initials: T
authors.lastname: Kycia
authors.initials: GJ
authors.lastname: Lolos
authors.initials: I
authors.lastname: Lopatin
authors.initials: DM
authors.lastname: Manley
authors.initials: A
authors.lastname: Marusic
authors.initials: R
authors.lastname: Manweiler
authors.initials: S
authors.lastname: McDonald
authors.initials: BM
authors.lastname: Nefkens
authors.initials: J
authors.lastname: Olmsted