The process e+e-→π+π-π0γ is studied at a center-of-mass energy near the D(4S) resonance using a data sample of 469 fb-1 collected with the BABAR detector at the PEP-II collider. We have performed a precise measurement of the e+e-→π+π-π0 cross section in the center-of-mass energy range from 0.62 to 3.5 GeV. In the energy regions of the ω and φ resonances, the cross section is measured with a systematic uncertainty of 1.3%. The leading-order hadronic contribution to the muon magnetic anomaly calculated using the measured e+e-→π+π-π0 cross section from threshold to 2.0 GeV is (45.86±0.14±0.58)×10-10. From the fit to the measured 3π mass spectrum we have determined the resonance parameters Γ(ω→e+e-)B(ω→π+π-π0)=(0.5698±0.0031±0.0082) keV, Γ(φ→e+e-)B(φ→π+π-π0)=(0.1841±0.0021±0.0080) keV, and B(ρ→3π)=(0.88±0.23±0.30)×10-4. The significance of the ρ→3π signal is greater than 6σ. For the J/ψ resonance we have measured the product Γ(J/ψ→e+e-)B(J/ψ→3π)=(0.1248±0.0019±0.0026) keV.

Study of the process e+e−→π+π−π0 using initial state radiation with BABAR

Calabrese, R.;Cibinetto, G.;Garzia, I.;Luppi, E.;
2021

Abstract

The process e+e-→π+π-π0γ is studied at a center-of-mass energy near the D(4S) resonance using a data sample of 469 fb-1 collected with the BABAR detector at the PEP-II collider. We have performed a precise measurement of the e+e-→π+π-π0 cross section in the center-of-mass energy range from 0.62 to 3.5 GeV. In the energy regions of the ω and φ resonances, the cross section is measured with a systematic uncertainty of 1.3%. The leading-order hadronic contribution to the muon magnetic anomaly calculated using the measured e+e-→π+π-π0 cross section from threshold to 2.0 GeV is (45.86±0.14±0.58)×10-10. From the fit to the measured 3π mass spectrum we have determined the resonance parameters Γ(ω→e+e-)B(ω→π+π-π0)=(0.5698±0.0031±0.0082) keV, Γ(φ→e+e-)B(φ→π+π-π0)=(0.1841±0.0021±0.0080) keV, and B(ρ→3π)=(0.88±0.23±0.30)×10-4. The significance of the ρ→3π signal is greater than 6σ. For the J/ψ resonance we have measured the product Γ(J/ψ→e+e-)B(J/ψ→3π)=(0.1248±0.0019±0.0026) keV.
2021
Lees, J.  P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Brown, D.  N.; Kolomensky, Yu.  G.; Fritsch, M.; Koch, H.; Schroeder, T.; Cheaib, R.; Hearty, C.; Mattison, T.  S.; Mckenna, J.  A.; So, R.  Y.; Blinov, V.  E.; Buzykaev, A.  R.; Druzhinin, V.  P.; Golubev, V.  B.; Kozyrev, E.  A.; Kravchenko, E.  A.; Onuchin, A.  P.; Serednyakov, S.  I.; Skovpen, Yu.  I.; Solodov, E.  P.; Todyshev, K.  Yu.; Lankford, A.  J.; Dey, B.; Gary, J.  W.; Long, O.; Eisner, A.  M.; Lockman, W.  S.; Panduro Vazquez, W.; Chao, D.  S.; Cheng, C.  H.; Echenard, B.; Flood, K.  T.; Hitlin, D.  G.; Kim, J.; Li, Y.; Lin, D.  X.; Middleton, S.; Miyashita, T.  S.; Ongmongkolkul, P.; Oyang, J.; Porter, F.  C.; Röhrken, M.; Huard, Z.; Meadows, B.  T.; Pushpawela, B.  G.; Sokoloff, M.  D.; Sun, L.; Smith, J.  G.; Wagner, S.  R.; Bernard, D.; Verderi, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cibinetto, G.; Fioravanti, E.; Garzia, I.; Luppi, E.; Santoro, V.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Martellotti, S.; Patteri, P.; Peruzzi, I.  M.; Piccolo, M.; Rotondo, M.; Zallo, A.; Passaggio, S.; Patrignani, C.; Shuve, B.  J.; Lacker, H.  M.; Bhuyan, B.; Mallik, U.; Chen, C.; Cochran, J.; Prell, S.; Gritsan, A.  V.; Arnaud, N.; Davier, M.; Le Diberder, F.; Lutz, A.  M.; Wormser, G.; Lange, D.  J.; Wright, D.  M.; Coleman, J.  P.; Gabathuler, E.; Hutchcroft, D.  E.; Payne, D.  J.; Touramanis, C.; Bevan, A.  J.; Di Lodovico, F.; Sacco, R.; Cowan, G.; Banerjee, Sw.; Brown, D.  N.; Davis, C.  L.; Denig, A.  G.; Gradl, W.; Griessinger, K.; Hafner, A.; Schubert, K.  R.; Barlow, R.  J.; Lafferty, G.  D.; Cenci, R.; Jawahery, A.; Roberts, D.  A.; Cowan, R.; Robertson, S.  H.; Seddon, R.  M.; Neri, N.; Palombo, F.; Cremaldi, L.; Godang, R.; Summers, D.  J.; Taras, P.; De Nardo, G.; Sciacca, C.; Raven, G.; Jessop, C.  P.; Losecco, J.  M.; Honscheid, K.; Kass, R.; Gaz, A.; Margoni, M.; Posocco, M.; Simi, G.; Simonetto, F.; Stroili, R.; Akar, S.; Ben-Haim, E.; Bomben, M.; Bonneaud, G.  R.; Calderini, G.; Chauveau, J.; Marchiori, G.; Ocariz, J.; Biasini, M.; Manoni, E.; Rossi, A.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Chrzaszcz, M.; Forti, F.; Giorgi, M.  A.; Lusiani, A.; Oberhof, B.; Paoloni, E.; Rama, M.; Rizzo, G.; Walsh, J.  J.; Zani, L.; Smith, A.  J.  S.; Anulli, F.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Pilloni, A.; Piredda, G.; Bünger, C.; Dittrich, S.; Grünberg, O.; Heß, M.; Leddig, T.; Voß, C.; Waldi, R.; Adye, T.; Wilson, F.  F.; Emery, S.; Vasseur, G.; Aston, D.; Cartaro, C.; Convery, M.  R.; Dorfan, J.; Dunwoodie, W.; Ebert, M.; Field, R.  C.; Fulsom, B.  G.; Graham, M.  T.; Hast, C.; Innes, W.  R.; Kim, P.; Leith, D.  W.  G.  S.; Luitz, S.; Macfarlane, D.  B.; Muller, D.  R.; Neal, H.; Ratcliff, B.  N.; Roodman, A.; Sullivan, M.  K.; Va’Vra, J.; Wisniewski, W.  J.; Purohit, M.  V.; Wilson, J.  R.; Randle-Conde, A.; Sekula, S.  J.; Ahmed, H.; Tasneem, N.; Bellis, M.; Burchat, P.  R.; Puccio, E.  M.  T.; Alam, M.  S.; Ernst, J.  A.; Gorodeisky, R.; Guttman, N.; Peimer, D.  R.; Soffer, A.; Spanier, S.  M.; Ritchie, J.  L.; Schwitters, R.  F.; Izen, J.  M.; Lou, X.  C.; Bianchi, F.; De Mori, F.; Filippi, A.; Gamba, D.; Lanceri, L.; Vitale, L.; Martinez-Vidal, F.; Oyanguren, A.; Albert, J.; Beaulieu, A.; Bernlochner, F.  U.; King, G.  J.; Kowalewski, R.; Lueck, T.; Miller, C.; Nugent, I.  M.; Roney, J.  M.; Sobie, R.  J.; Gershon, T.  J.; Harrison, P.  F.; Latham, T.  E.; Prepost, R.; Wu, S.  L.
File in questo prodotto:
File Dimensione Formato  
PhysRevD.104.112003.pdf

accesso aperto

Descrizione: versione editoriale
Tipologia: Full text (versione editoriale)
Licenza: Creative commons
Dimensione 1.24 MB
Formato Adobe PDF
1.24 MB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2506054
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 14
  • ???jsp.display-item.citation.isi??? 11
social impact