The process e(+)e(-) -> pi(+) pi(-) pi(0)gamma is studied at a center-of-mass energy near the Upsilon(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(-) -> pi(+) pi(-) pi(0) cross section in the center-of-mass energy range from 0.62 to 3.5 GeV. In the energy regions of the omega and phi 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(-) -> pi(+) pi(-) pi(0) cross section from threshold to 2.0 GeV is (45.86 +/- 0.14 +/- 0.58) x 10(-10). From the fit to the measured 3 pi mass spectrum we have determined the resonance parameters Gamma(omega -> e(+)e(-)) B(omega -> pi(+) pi- pi(0)) = (0.5698 +/- 0.0031 +/- 0.0082) keV, Gamma(phi -> e(+)e(-)) B(phi -> pi(+) pi(-)pi(0)) = (0.1841 +/- 0.0021 +/- 0.0080) keV, and B(rho -> 3 pi) = (0.88 +/- 0.23 +/- 0.30) x 10(-4). The significance of the rho -> 3 pi signal is greater than 6 sigma. For the J/psi resonance we have measured the product Gamma(J/psi -> e(+) e(-)) B (J/psi -> 3 pi) = (0.1248 +/- 0.0019 +/- 0.0026) keV.
Study of the process e(+) e(-) -> pi(+)pi (-) pi(0) using initial state radiation with BABAR / Lees, Jp; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, Dn; Kolomensky, Yg; Fritsch, M; Koch, H; Schroeder, T; Cheaib, R; Hearty, C; Mattison, Ts; Mckenna, Ja; So, Ry; Blinov, Ve; Buzykaev, Ar; Druzhinin, Vp; Golubev, Vb; Kozyrev, Ea; Kravchenko, Ea; Onuchin, Ap; Serednyakov, Si; Skovpen, Yi; Solodov, Ep; Todyshev, Ky; Lankford, Aj; Dey, B; Gary, Jw; Long, O; Eisner, Am; Lockman, Ws; Vazquez, Wp; Chao, Ds; Cheng, Ch; Echenard, B; Flood, Kt; Hitlin, Dg; Kim, J; Li, Y; Lin, Dx; Middleton, S; Miyashita, Ts; Ongmongkolkul, P; Oyang, J; Porter, Fc; Rohrken, M; Huard, Z; Meadows, Bt; Pushpawela, Bg; Sokoloff, Md; Sun, L; Smith, Jg; Wagner, Sr; 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, Im; Piccolo, M; Rotondo, M; Zallo, A; Passaggio, S; Patrignani, C; Shuve, Bj; Lacker, Hm; Bhuyan, B; Mallik, U; Chen, C; Cochran, J; Prell, S; Gritsan, Av; Arnaud, N; Davier, M; Le Diberder, F; Lutz, Am; Wormser, G; Lange, Dj; Wright, Dm; Coleman, Jp; Gabathuler, E; Hutchcroft, De; Payne, Dj; Touramanis, C; Bevan, Aj; Di Lodovico, F; Sacco, R; Cowan, G; Banerjee, S; Brown, Dn; Davis, Cl; Denig, Ag; Gradl, W; Griessinger, K; Hafner, A; Schubert, Kr; Barlow, Rj; Lafferty, Gd; Cenci, R; Jawahery, A; Roberts, Da; Cowan, R; Robertson, Sh; Seddon, Rm; Neri, N; Palombo, F; Cremaldi, L; Godang, R; Summers, Dj; Taras, P; De Nardo, G; Sciacca, C; Raven, G; Jessop, Cp; Losecco, Jm; Honscheid, K; Kass, R; Gaz, A; Margoni, M; Posocco, M; Simi, G; Simonetto, F; Stroili, R; Akar, S; Ben-Haim, E; Bomben, M; Bonneaud, Gr; 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, Ma; Lusiani, A; Oberhof, B; Paoloni, E; Rama, M; Rizzo, G; Walsh, Jj; Zani, L; Smith, Ajs; Anulli, F; Faccini, R; Ferrarotto, F; Ferroni, F; Pilloni, A; Piredda, G; Bunger, C; Dittrich, S; Grunberg, O; Hess, M; Leddig, T; Voss, C; Waldi, R; Adye, T; Wilson, Ff; Emery, S; Vasseur, G; Aston, D; Cartaro, C; Convery, Mr; Dorfan, J; Dunwoodie, W; Ebert, M; Field, Rc; Fulsom, Bg; Graham, Mt; Hast, C; Innes, Wr; Kim, P; Leith, Dwgs; Luitz, S; Macfarlane, Db; Muller, Dr; Neal, H; Ratcliff, Bn; Roodman, A; Sullivan, Mk; Va'Vra, J; Wisniewski, Wj; Purohit, Mv; Wilson, Jr; Randle-Conde, A; Sekula, Sj; Ahmed, H; Tasneem, N; Bellis, M; Burchat, Pr; Puccio, Emt; Alam, Ms; Ernst, Ja; Gorodeisky, R; Guttman, N; Peimer, Dr; Soffer, A; Spanier, Sm; Ritchie, Jl; Schwitters, Rf; Izen, Jm; Lou, Xc; Bianchi, F; De Mori, F; Filippi, A; Gamba, D; Lanceri, L; Vitale, L; Martinez-Vidal, F; Oyanguren, A; Albert, J; Beaulieu, A; Bernlochner, Fu; King, Gj; Kowalewski, R; Lueck, T; Miller, C; Nugent, Im; Roney, Jm; Sobie, Rj; Gershon, Tj; Harrison, Pf; Latham, Te; Prepost, R; Wu, Sl. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 104/2021:11(2021), pp. 112003.1-112003.31. [10.1103/PhysRevD.104.112003]
Study of the process e(+) e(-) -> pi(+)pi (-) pi(0) using initial state radiation with BABAR
Bomben, M;Cartaro, C;Lanceri, L;Vitale, L;
2021-01-01
Abstract
The process e(+)e(-) -> pi(+) pi(-) pi(0)gamma is studied at a center-of-mass energy near the Upsilon(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(-) -> pi(+) pi(-) pi(0) cross section in the center-of-mass energy range from 0.62 to 3.5 GeV. In the energy regions of the omega and phi 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(-) -> pi(+) pi(-) pi(0) cross section from threshold to 2.0 GeV is (45.86 +/- 0.14 +/- 0.58) x 10(-10). From the fit to the measured 3 pi mass spectrum we have determined the resonance parameters Gamma(omega -> e(+)e(-)) B(omega -> pi(+) pi- pi(0)) = (0.5698 +/- 0.0031 +/- 0.0082) keV, Gamma(phi -> e(+)e(-)) B(phi -> pi(+) pi(-)pi(0)) = (0.1841 +/- 0.0021 +/- 0.0080) keV, and B(rho -> 3 pi) = (0.88 +/- 0.23 +/- 0.30) x 10(-4). The significance of the rho -> 3 pi signal is greater than 6 sigma. For the J/psi resonance we have measured the product Gamma(J/psi -> e(+) e(-)) B (J/psi -> 3 pi) = (0.1248 +/- 0.0019 +/- 0.0026) keV.| File | Dimensione | Formato | |
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