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Dalitz plot analysis of e+e-→π0π0γ events at \(\sqrt{s} \simeq{M}_{\phi}\) with the KLOE detector

  • F. Ambrosino
  • A. Antonelli
  • M. Antonelli
  • C. Bacci
  • P. Beltrame
  • G. Bencivenni
  • S. Bertolucci
  • C. Bini
  • C. Bloise
  • S. Bocchetta
  • V. Bocci
  • F. Bossi
  • D. Bowring
  • P. Branchini
  • R. Caloi
  • P. Campana
  • G. Capon
  • T. Capussela
  • F. Ceradini
  • S. Chi
  • G. Chiefari
  • P. Ciambrone
  • S. Conetti
  • E. De Lucia
  • A. De Santis
  • P. De Simone
  • G. De Zorzi
  • S. Dell’Agnello
  • A. Denig
  • A. Di Domenico
  • C. Di Donato
  • S. Di Falco
  • B. Di Micco
  • A. Doria
  • M. Dreucci
  • G. Felici
  • A. Ferrari
  • M.L. Ferrer
  • G. Finocchiaro
  • S. Fiore
  • C. Forti
  • P. Franzini
  • C. Gatti
  • P. Gauzzi
  • S. GiovannellaEmail author
  • E. Gorini
  • E. Graziani
  • M. Incagli
  • W. Kluge
  • V. Kulikov
  • F. Lacava
  • G. Lanfranchi
  • J. Lee-Franzini
  • D. Leone
  • M. Martini
  • P. Massarotti
  • W. Mei
  • S. Meola
  • S. Miscetti
  • M. Moulson
  • S. Müller
  • F. Murtas
  • M. Napolitano
  • F. Nguyen
  • M. Palutan
  • E. Pasqualucci
  • A. Passeri
  • V. Patera
  • F. Perfetto
  • L. Pontecorvo
  • M. Primavera
  • P. Santangelo
  • E. Santovetti
  • G. Saracino
  • B. Sciascia
  • A. Sciubba
  • F. Scuri
  • I. Sfiligoi
  • T. Spadaro
  • M. Testa
  • L. Tortora
  • P. Valente
  • B. Valeriani
  • G. Venanzoni
  • S. Veneziano
  • A. Ventura
  • R. Versaci
  • G. Xu
  • The KLOE Collaboration
Regular Article - Experimental Physics

Abstract

We have studied the Dalitz plot of the e+e-→π0π0γ events (Nπ0π0γ∼65000) collected at \(\sqrt{s} \simeq{M}_{\phi}\) with the KLOE detector. In the dipion invariant mass (Mππ) region below 700 MeV, the process under study is dominated by the non-resonant process e+e-→ωπ0 with ω→π0γ whereas, for higher Mππ values, the radiative φ decay to the f0(980) is the dominant mechanism. Different theoretical models are used to fit the Dalitz plot, taking also into account a possible contribution of the σ(600). For each model, we extract the f0(980) mass and its coupling to ππ, KK̄ and to the φ.

Keywords

Monte Carlo Interference Term Dalitz Plot Scalar Term KLOE Collaboration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • F. Ambrosino
    • 6
  • A. Antonelli
    • 2
  • M. Antonelli
    • 2
  • C. Bacci
    • 11
  • P. Beltrame
    • 3
  • G. Bencivenni
    • 2
  • S. Bertolucci
    • 2
  • C. Bini
    • 9
  • C. Bloise
    • 2
  • S. Bocchetta
    • 11
  • V. Bocci
    • 9
  • F. Bossi
    • 2
  • D. Bowring
    • 2
    • 13
  • P. Branchini
    • 11
  • R. Caloi
    • 9
  • P. Campana
    • 2
  • G. Capon
    • 2
  • T. Capussela
    • 6
  • F. Ceradini
    • 11
  • S. Chi
    • 2
  • G. Chiefari
    • 6
  • P. Ciambrone
    • 2
  • S. Conetti
    • 13
  • E. De Lucia
    • 2
  • A. De Santis
    • 9
  • P. De Simone
    • 2
  • G. De Zorzi
    • 9
  • S. Dell’Agnello
    • 2
  • A. Denig
    • 3
  • A. Di Domenico
    • 9
  • C. Di Donato
    • 6
  • S. Di Falco
    • 7
  • B. Di Micco
    • 11
  • A. Doria
    • 6
  • M. Dreucci
    • 2
  • G. Felici
    • 2
  • A. Ferrari
    • 2
  • M.L. Ferrer
    • 2
  • G. Finocchiaro
    • 2
  • S. Fiore
    • 9
  • C. Forti
    • 2
  • P. Franzini
    • 9
  • C. Gatti
    • 2
  • P. Gauzzi
    • 9
  • S. Giovannella
    • 2
    Email author
  • E. Gorini
    • 4
  • E. Graziani
    • 11
  • M. Incagli
    • 7
  • W. Kluge
    • 3
  • V. Kulikov
    • 5
  • F. Lacava
    • 9
  • G. Lanfranchi
    • 2
  • J. Lee-Franzini
    • 2
    • 12
  • D. Leone
    • 3
  • M. Martini
    • 2
  • P. Massarotti
    • 6
  • W. Mei
    • 2
  • S. Meola
    • 6
  • S. Miscetti
    • 2
  • M. Moulson
    • 2
  • S. Müller
    • 2
  • F. Murtas
    • 2
  • M. Napolitano
    • 6
  • F. Nguyen
    • 11
  • M. Palutan
    • 2
  • E. Pasqualucci
    • 9
  • A. Passeri
    • 11
  • V. Patera
    • 2
    • 8
  • F. Perfetto
    • 6
  • L. Pontecorvo
    • 9
  • M. Primavera
    • 4
  • P. Santangelo
    • 2
  • E. Santovetti
    • 10
  • G. Saracino
    • 6
  • B. Sciascia
    • 2
  • A. Sciubba
    • 2
    • 8
  • F. Scuri
    • 7
  • I. Sfiligoi
    • 2
  • T. Spadaro
    • 2
  • M. Testa
    • 9
  • L. Tortora
    • 11
  • P. Valente
    • 9
  • B. Valeriani
    • 3
  • G. Venanzoni
    • 2
  • S. Veneziano
    • 9
  • A. Ventura
    • 4
  • R. Versaci
    • 2
  • G. Xu
    • 2
    • 1
  • The KLOE Collaboration
  1. 1.Institute of High Energy PhysicsAcademica SinicaBeijingChina
  2. 2.Laboratori Nazionali di Frascati dell’INFNFrascatiItaly
  3. 3.Institut für Experimentelle KernphysikUniversität KarlsruheKarlsruheGermany
  4. 4.Dipartimento di FisicaUniversità e Sezione INFNLecceItaly
  5. 5.Institute for Theoretical and Experimental PhysicsMoscowRussia
  6. 6.Dipartimento di Scienze FisicheUniversità “Federico II” e Sezione INFNNapoliItaly
  7. 7.Dipartimento di FisicaUniversità e Sezione INFNPisaItaly
  8. 8.Dipartimento di EnergeticaUniversità “La Sapienza”RomaItaly
  9. 9.Dipartimento di FisicaUniversità “La Sapienza” e Sezione INFNRomaItaly
  10. 10.Dipartimento di FisicaUniversità “Tor Vergata” e Sezione INFNRomaItaly
  11. 11.Dipartimento di FisicaUniversità “Roma Tre” e Sezione INFNRomaItaly
  12. 12.Physics DepartmentState University of New YorkStony BrookUSA
  13. 13.Physics DepartmentUniversity of VirginiaCharlottesvilleUSA

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