Study of the reactions 
e+e−→2(π+π−)π0π0π0
 and 
2(π+π−)π0π0η
 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.; 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.; 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.; Nugent, I.  m.; Roney, J.  m.; Sobie, R.  j.; Tasneem, N.; Gershon, T.  j.; Harrison, P.  f.; Latham, T.  e.; Prepost, R.; S.  l., Wu

doi:10.1103/PhysRevD.103.092001

We study the processes 𝑒+⁢𝑒− →2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜋0⁢𝛾 and 2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜂⁢𝛾 in which an energetic photon is radiated from the initial state. The data were collected with the BABAR detector at SLAC. About 14 000 and 4700 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− →2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜋0 and the 𝑒+⁢𝑒− →2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜂 cross sections are performed. The contributions from 𝜔⁢𝜋+⁢𝜋−⁢𝜋0⁢𝜋0 , 𝜂⁢2⁢(𝜋+⁢𝜋−) , and other intermediate states are presented. We observe the 𝐽/𝜓 and 𝜓⁡(2⁢𝑆) 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−→2(π+π−)π0π0π0 and 2(π+π−)π0π0η 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.;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.^{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.;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.;Nugent, I. M.;Roney, J. M.;Sobie, R. J.;Tasneem, N.;Gershon, T. J.;Harrison, P. F.;Latham, T. E.;Prepost, R.;Wu, S. L.

2021

Abstract

We study the processes 𝑒+⁢𝑒− →2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜋0⁢𝛾 and 2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜂⁢𝛾 in which an energetic photon is radiated from the initial state. The data were collected with the BABAR detector at SLAC. About 14 000 and 4700 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− →2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜋0 and the 𝑒+⁢𝑒− →2⁢(𝜋+⁢𝜋−)⁢𝜋0⁢𝜋0⁢𝜂 cross sections are performed. The contributions from 𝜔⁢𝜋+⁢𝜋−⁢𝜋0⁢𝜋0 , 𝜂⁢2⁢(𝜋+⁢𝜋−) , and other intermediate states are presented. We observe the 𝐽/𝜓 and 𝜓⁡(2⁢𝑆) 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.103.092001
			
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