Study of the process e(+)e(-) -> omega pi(0) in the phi-meson mass region with the KLOE detector
- Ambrosino F
- Antonelli A
- Antonelli M
- Archilli F
- Beltrame P
- Bencivenni G
- Bertolucci S
- Bini C
- Bloise C
- Bocchetta S
- Bossi F
- Branchini R
- Campana P
- Capon G
- Capussela T
- Ceradini F
- Ciambrone P
- Crucianelli F
- De Lucia E
- De Santis A
- De Simone P
- De Zorzi G
- Denig A
- Di Domenico A
- Di Donato C
- Di Micco B
- Dreucci M
- Felici G
- Ferrer ML
- Fiore S
- Franzini P
- Gatti C
- Gauzzi P
- Giovannella S
- Graziani E
- Kluge W
- Lanfranchi G
- Lee-Franzini J
- Leone D
- Martini M
- Massarotti P
- Meola S
- Miscetti S
- Moulson M
- Muller S
- Murtas F
- Napolitano M
- Nguyen F
- Palutan M
- Pasqualucci E
- Passeri A
- Patera V
- Perfetto F
- Santangelo P
- Sciascia B
- Sciubba A
- Sibidanov A
- Spadaro T
- Testa M
- Tortora L
- Valente P
- Venanzoni G
- Versaci R
- Xu G
DOIAbstract
We have studied the e(+)e(-) -> omega pi(0) cross section in the root s interval 1000-1030 MeV using the pi(+)pi(-)pi(0)pi(0) and pi(0)pi(0)gamma final states with a sample of similar to 6000 pb(-1) collected with the KLOE detector at DAONE. By fitting the observed interference pattern around M(phi) for both final states, we extract the ratio of the decay widths Gamma(omega -> pi(0)gamma)/Gamma(omega -> pi(+)pi(-)pi(0)) = 0.0897 +/- 0.0016 and derive the branching fractions BR(omega -> pi(+)pi(-)pi(0)) = (90.24 +/- 0.19)%, BR(omega -> pi(0)gamma) = (8.09 +/- 0.14)%. The parameters describing the e(+)e(-) -> pi(+)pi(-)pi(0)pi(0) reaction around M(phi) are also used to extract the branching fraction for the OZI and G-parity violating phi -> o...
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