Study of the reactions e+e- →π+π-π0π0π0π0 and π+π-π0π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

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.; R.  Y., So; 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, Alberto; 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.; S.  L., Wu

doi:10.1103/PhysRevD.104.112004

We study the processes e+e−→π+π−π0π0π0π0γ and e+e−→π+π−π0π0π0ηγ in which an energetic photon is radiated from the initial state. The data were collected with the BaBar detector at the SLAC National Accelerator Laboratory. About 7300 and 870 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469~fb−1. The invariant mass of the hadronic final state defines the effective e+e− center-of-mass energy. The center-of-mass energies range from threshold to 4.5~GeV. From the mass spectra, the first ever measurements of the e+e−→π+π−π0π0π0π0 and the e+e−→π+π−π0π0π0η cross sections are performed. The contributions from ωπ0π0π0, ηπ+π−π0, ωη, and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.

Study of the reactions e+e- →π+π-π0π0π0π0 and π+π-π0π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

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 Alberto^{Membro del Collaboration Group};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.

2021

Abstract

We study the processes e+e−→π+π−π0π0π0π0γ and e+e−→π+π−π0π0π0ηγ in which an energetic photon is radiated from the initial state. The data were collected with the BaBar detector at the SLAC National Accelerator Laboratory. About 7300 and 870 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469~fb−1. The invariant mass of the hadronic final state defines the effective e+e− center-of-mass energy. The center-of-mass energies range from threshold to 4.5~GeV. From the mass spectra, the first ever measurements of the e+e−→π+π−π0π0π0π0 and the e+e−→π+π−π0π0π0η cross sections are performed. The contributions from ωπ0π0π0, ηπ+π−π0, ωη, and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.

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	Anno di pubblicazione
	
				2021
			
	Settore Scientifico Disciplinare (validi fino a 24/06/2024)
	
				Settore FIS/01 - Fisica Sperimentale
			
	Titolo Rivista
	
				PHYSICAL REVIEW D
			
	DOI
	
				https://dx.doi.org/10.1103/PhysRevD.104.112004
			
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