Study of the reaction e+e−→J/ψπ+π− via initial-state radiation at BABAR

Lees, J.P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D.N.; Kerth, L.T.; Kolomensky, Y.U.G.; Lee, M.J.; Lynch, G.; Koch, H.; Schroeder, T.; Hearty, C.; Mattison, T.S.; Mckenna, J.A.; G. Y., S.; Khan, A.; Blinovac, V.E.; Buzykaeva, A.R.; Druzhinin, V.P.; Golubev, V.B.; Kravchenko, E.A.; Onuchin, A.P.; Serednyakov, S.I.; Skovpen, Y.I.; Solodov, E.P.; Todyshev, K.Y.; Yushkov, A.N.; Lankford, A.J.; Mandelkern, M.; Dey, B.; Gary, J.W.; Long, O.; Campagnari, C.; Franco Sevilla, M.; Hong, T.M.; Kovalskyi, D.; Richman, J.D.; West, C.A.; Eisner, A.M.; Lockman, W.S.; Schumm, B.A.; Seiden, A.; Chao, D.S.; Cheng, C.H.; Echenard, B.; Flood, K.T.; Hitlin, D.G.; Miyashita, T.S.; Ongmongkolkul, P.; Porter, F.C.; Andreassen, R.; Huard, Z.; Meadows, B.T.; Pushpawela, B.G.; Sokoloff, M.D.; Sun, L.; Bloom, P.C.; Ford, W.T.; Nauenberg, A.G.U.; Smith, J.G.; Wagner, S.R.; Ayad, R.; Toki, W.H.; Spaan, B.; Schwierz, R.; Bernard, D.; Verderi, M.; Playfer, S.; Bettonia, D.; Bozzi, C.; Calabrese, R.; Cibinetto, G.; Fioravanti, E.; Garzia, I.; Luppi, E.; Piemontese, L.; Santoro, V.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Martellotti, S.; Patteri, P.; Peruzzi, I.M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Mong, M.R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Morii, M.; Adametz, A.; Uwer, U.; Lacker, H.M.; Dauncey, P.D.; Mallik, U.; Chen, C.; Cochran, J.; Meyer, W.T.; Prell, S.; Ahmed, H.; Gritsan, A.V.; Arnaud, N.; Davier, M.; Derkach, D.; Grosdidier, G.; Le Diberder, F.; Lutz, A.M.; Malaescu, B.; Roudeau, P.; Stocchi, A.; Wormser, G.; Lange, D.J.; Wright, D.M.; Coleman, J.P.; Fry, J.R.; Gabathuler, E.; Hutchcroft, D.E.; Payne, D.J.; Touramanis, C.; Bevan, A.J.; Di Lodovico, F.; Sacco, R.; Cowan, G.; Bougher, J.; Brown, D.N.; Davis, C.L.; Denig, A.G.; Fritsch, M.; Gradl, W.; Griessinger, K.; Hafner, A.; Prencipe, E.; Schubert, K.R.; Barlow, R.J.; Lafferty, G.D.; Cenci, R.; Hamilton, B.; Jawahery, A.; Roberts, D.A.; Cowan, R.; Dujmic, D.; Sciolla, G.; Cheaib, R.; Patel, P.M.; Robertson, S.H.; Biassoni, P.; Neri, N.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Sonnek, P.; Summers, D.J.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Martinelli, M.; Raven, G.; Jessop, C.P.; Lo Secco, J.M.; Honscheid, K.; Kass, R.; Brau, J.; Frey, R.; Sinev, N.B.; Strom, D.; Torrence, E.; Feltresi, E.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simi, G.; Simonetto, F.; Stroili, R.; Akar, S.; Ben Haim, E.; Bomben, M.; Bonneaud, G.R.; Briand, H.; Calderini, G.; Chauveau, J.; Leruste, P.; Marchiori, G.; Ocariz, J.; Sitt, S.; Biasini, M.; Manonia, E.; Pacetti, S.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Chrzaszcz, M.; Forti, F.; Giorgi, M.A.; Lusiani, A.; Oberhof, B.; Paoloni, E.; Perez, A.; Rizzo, G.; Walsh, J.J.; Lopes Pegna, D.; Olsen, J.; Smith, A.J.S.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Piredda, G.; Bunnge, C.; Grunberg, O.; Hartmann, T.; Leddig, T.; Vo√ü, C.; Waldi, R.; Adye, T.; Olaiya, E.O.; Wilson, F.F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yeche, C.; Anulli, F.; Aston, D.; Bard, D.J.; Benitez, J.F.; Cartaro, C.; Convery, M.R.; Dorfan, J.; Dubois Felsmann, G.P.; Dunwoodie, W.; Ebert, M.; Field, R.C.; Fulsom, B.G.; Gabareen, A.M.; Graham, M.T.; Hast, C.; Innes, W.R.; Kim, P.; Kocian, M.L.; Leith, D.W.G.S.; Lindemann, D.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H.L.; Macfarlane, D.B.; Muller, D.R.; Neal, H.; Nelson, S.; Perl, M.; Pulliam, T.; Ratcliff, B.N.; Roodman, A.; Salnikov, A.A.; Schindler, R.H.; Snyder, A.; Su, D.; Sullivan, M.K.; Vavra, J.; Wagner, A.P.; Wang, W.F.; Wisniewski, W.J.; Wittgen, M.; Wright, D.H.; Wulsin, H.W.; Ziegler, V.; Park, W.; Purohit, M.V.; White, R.M.; Wilson, J.R.; Randle Conde, A.; Sekula, S.J.; 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.; Ruland, A.M.; Schwitters, R.F.; Wray, B.C.; Izen, J.M.; Lou, X.C.; Bianchi, F.; De Mori, F.; Filippi, A.; Gamba, D.; Zambito, S.; Lanceri, L.; Vitale, L.; Martinez Vidal, F.; Oyanguren, A.; Villanueva Perez, P.; Albert, J.; Banerjee, S.; Bernlochner, F.U.; Choi, H.H.F.; King, G.J.; Kowalewski, R.; Lewczuk, M.J.; Lueck, T.; Nugent, I.M.; Roney, J.M.; Sobie, R.J.; Tasneem, N.; Gershon, T.J.; Harrison, P.F.; Latham, T.E.; Band, H.R.; Dasu, S.; Pan, Y.; Prepost, R.; S. L., W.

doi:10.1103/PhysRevD.86.051102

We study the process e+e−→J/ψπ+π− with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies 10.58 and 10.54 GeV, and correspond to an integrated luminosity of 454 fb−1. We investigate the J/ψπ+π− mass distribution in the region from 3.5 to 5.5 GeV/c2. Below 3.7 GeV/c2 the ψ(2S) signal dominates, and above 4 GeV/c2 there is a significant peak due to the Y(4260). A fit to the data in the range 3.74–5.50 GeV/c2 yields a mass value 4245±5(stat)±4(syst) MeV/c2 and a width value 114+16−15(stat)±7(syst) MeV for this state. We do not confirm the report from the Belle Collaboration of a broad structure at 4.01 GeV/c2. In addition, we investigate the π+π− system which results from Y(4260) decay.

Study of the reaction e+e−→J/ψπ+π− via initial-state radiation at BABAR / J.P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, D.N. Brown, L.T. Kerth, Y.U.G. Kolomensky, M.J. Lee, G. Lynch, H. Koch, T. Schroeder, C. Hearty, T.S. Mattison, J.A. Mckenna, G.Y. So, A. Khan, V.E. Blinovac, A.R. Buzykaeva, V.P. Druzhinin, V.B. Golubev, E.A. Kravchenko, A.P. Onuchin, S.I. Serednyakov, Y.I. Skovpen, E.P. Solodov, K.Y. Todyshev, A.N. Yushkov, A.J. Lankford, M. Mandelkern, B. Dey, J.W. Gary, O. Long, C. Campagnari, M. Franco Sevilla, T.M. Hong, D. Kovalskyi, J.D. Richman, C.A. West, A.M. Eisner, W.S. Lockman, B.A. Schumm, A. Seiden, D.S. Chao, C.H. Cheng, B. Echenard, K.T. Flood, D.G. Hitlin, T.S. Miyashita, P. Ongmongkolkul, F.C. Porter, R. Andreassen, Z. Huard, B.T. Meadows, B.G. Pushpawela, M.D. Sokoloff, L. Sun, P.C. Bloom, W.T. Ford, A.G.U. Nauenberg, J.G. Smith, S.R. Wagner, R. Ayad, W.H. Toki, B. Spaan, R. Schwierz, D. Bernard, M. Verderi, S. Playfer, D. Bettonia, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, L. Piemontese, V. Santoro, A. Calcaterra, R. de Sangro, G. Finocchiaro, S. Martellotti, P. Patteri, I.M. Peruzzi, M. Piccolo, M. Rama, A. Zallo, R. Contri, E. Guido, M. Lo Vetere, M.R. Mong, S. Passaggio, C. Patrignani, E. Robutti, B. Bhuyan, V. Prasad, M. Morii, A. Adametz, U. Uwer, H.M. Lacker, P.D. Dauncey, U. Mallik, C. Chen, J. Cochran, W.T. Meyer, S. Prell, H. Ahmed, A.V. Gritsan, N. Arnaud, M. Davier, D. Derkach, G. Grosdidier, F. Le Diberder, A.M. Lutz, B. Malaescu, P. Roudeau, A. Stocchi, G. Wormser, D.J. Lange, D.M. Wright, J.P. Coleman, J.R. Fry, E. Gabathuler, D.E. Hutchcroft, D.J. Payne, C. Touramanis, A.J. Bevan, F. Di Lodovico, R. Sacco, G. Cowan, J. Bougher, D.N. Brown, C.L. Davis, A.G. Denig, M. Fritsch, W. Gradl, K. Griessinger, A. Hafner, E. Prencipe, K.R. Schubert, R.J. Barlow, G.D. Lafferty, R. Cenci, B. Hamilton, A. Jawahery, D.A. Roberts, R. Cowan, D. Dujmic, G. Sciolla, R. Cheaib, P.M. Patel, S.H. Robertson, P. Biassoni, N. Neri, F. Palombo, S. Stracka, L. Cremaldi, R. Godang, P. Sonnek, D.J. Summers, M. Simard, P. Taras, G. De Nardo, D. Monorchio, G. Onorato, C. Sciacca, M. Martinelli, G. Raven, C.P. Jessop, J.M. Lo Secco, K. Honscheid, R. Kass, J. Brau, R. Frey, N.B. Sinev, D. Strom, E. Torrence, E. Feltresi, M. Margoni, M. Morandin, M. Posocco, M. Rotondo, G. Simi, F. Simonetto, R. Stroili, S. Akar, E. Ben Haim, M. Bomben, G.R. Bonneaud, H. Briand, G. Calderini, J. Chauveau, P. Leruste, G. Marchiori, J. Ocariz, S. Sitt, M. Biasini, E. Manonia, S. Pacetti, A. Rossi, C. Angelini, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, A. Cervelli, M. Chrzaszcz, F. Forti, M.A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, A. Perez, G. Rizzo, J.J. Walsh, D. Lopes Pegna, J. Olsen, A.J.S. Smith, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, L. Li Gioi, G. Piredda, C. Bunnge, O. Grunberg, T. Hartmann, T. Leddig, C. Vo√ü, R. Waldi, T. Adye, E.O. Olaiya, F.F. Wilson, S. Emery, G. Hamel de Monchenault, G. Vasseur, C. Yeche, F. Anulli, D. Aston, D.J. Bard, J.F. Benitez, C. Cartaro, M.R. Convery, J. Dorfan, G.P. Dubois Felsmann, W. Dunwoodie, M. Ebert, R.C. Field, B.G. Fulsom, A.M. Gabareen, M.T. Graham, C. Hast, W.R. Innes, P. Kim, M.L. Kocian, D.W.G.S. Leith, D. Lindemann, B. Lindquist, S. Luitz, V. Luth, H.L. Lynch, D.B. Macfarlane, D.R. Muller, H. Neal, S. Nelson, M. Perl, T. Pulliam, B.N. Ratcliff, A. Roodman, A.A. Salnikov, R.H. Schindler, A. Snyder, D. Su, M.K. Sullivan, J. Vavra, A.P. Wagner, W.F. Wang, W.J. Wisniewski, M. Wittgen, D.H. Wright, H.W. Wulsin, V. Ziegler, W. Park, M.V. Purohit, R.M. White, J.R. Wilson, A. Randle Conde, S.J. Sekula, M. Bellis, P.R. Burchat, E.M.T. Puccio, M.S. Alam, J.A. Ernst, R. Gorodeisky, N. Guttman, D.R. Peimer, A. Soffer, S.M. Spanier, J.L. Ritchie, A.M. Ruland, R.F. Schwitters, B.C. Wray, J.M. Izen, X.C. Lou, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, S. Zambito, L. Lanceri, L. Vitale, F. Martinez Vidal, A. Oyanguren, P. Villanueva Perez, J. Albert, S. Banerjee, F.U. Bernlochner, H.H.F. Choi, G.J. King, R. Kowalewski, M.J. Lewczuk, T. Lueck, I.M. Nugent, J.M. Roney, R.J. Sobie, N. Tasneem, T.J. Gershon, P.F. Harrison, T.E. Latham, H.R. Band, S. Dasu, Y. Pan, R. Prepost, S.L. Wu. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 86:5(2012), pp. 051102.1-051102.9. [10.1103/PhysRevD.86.051102]

Study of the reaction e+e−→J/ψπ+π− via initial-state radiation at BABAR

J. P. Lees;V. Poireau;V. Tisserand;E. Grauges;A. Palano;G. Eigen;B. Stugu;D. N. Brown;L. T. Kerth;Y.u. G. Kolomensky;M. J. Lee;G. Lynch;H. Koch;T. Schroeder;C. Hearty;T. S. Mattison;J. A. McKenna;G. Y. So;A. Khan;V. E. Blinovac;A. R. Buzykaeva;V. P. Druzhinin;V. B. Golubev;E. A. Kravchenko;A. P. Onuchin;S. I. Serednyakov;Y. I. Skovpen;E. P. Solodov;K. Y. Todyshev;A. N. Yushkov;A. J. Lankford;M. Mandelkern;B. Dey;J. W. Gary;O. Long;C. Campagnari;M. Franco Sevilla;T. M. Hong;D. Kovalskyi;J. D. Richman;C. A. West;A. M. Eisner;W. S. Lockman;B. A. Schumm;A. Seiden;D. S. Chao;C. H. Cheng;B. Echenard;K. T. Flood;D. G. Hitlin;T. S. Miyashita;P. Ongmongkolkul;F. C. Porter;R. Andreassen;Z. Huard;B. T. Meadows;B. G. Pushpawela;M. D. Sokoloff;L. Sun;P. C. Bloom;W. T. Ford;A. G. U. Nauenberg;J. G. Smith;S. R. Wagner;R. Ayad;W. H. Toki;B. Spaan;R. Schwierz;D. Bernard;M. Verderi;S. Playfer;D. Bettonia;C. Bozzi;R. Calabrese;G. Cibinetto;E. Fioravanti;I. Garzia;E. Luppi;L. Piemontese;V. Santoro;A. Calcaterra;R. de Sangro;G. Finocchiaro;S. Martellotti;P. Patteri;I. M. Peruzzi;M. Piccolo;M. Rama;A. Zallo;R. Contri;E. Guido;M. Lo Vetere;M. R. Mong;S. Passaggio;C. Patrignani;E. Robutti;B. Bhuyan;V. Prasad;M. Morii;A. Adametz;U. Uwer;H. M. Lacker;P. D. Dauncey;U. Mallik;C. Chen;J. Cochran;W. T. Meyer;S. Prell;H. Ahmed;A. V. Gritsan;N. Arnaud;M. Davier;D. Derkach;G. Grosdidier;F. Le Diberder;A. M. Lutz;B. Malaescu;P. Roudeau;A. Stocchi;G. Wormser;D. J. Lange;D. M. Wright;J. P. Coleman;J. R. Fry;E. Gabathuler;D. E. Hutchcroft;D. J. Payne;C. Touramanis;A. J. Bevan;F. Di Lodovico;R. Sacco;G. Cowan;J. Bougher;D. N. Brown;C. L. Davis;A. G. Denig;M. Fritsch;W. Gradl;K. Griessinger;A. Hafner;E. Prencipe;K. R. Schubert;R. J. Barlow;G. D. Lafferty;R. Cenci;B. Hamilton;A. Jawahery;D. A. Roberts;R. Cowan;D. Dujmic;G. Sciolla;R. Cheaib;P. M. Patel;S. H. Robertson;P. Biassoni;N. Neri;F. Palombo;S. Stracka;L. Cremaldi;R. Godang;P. Sonnek;D. J. Summers;M. Simard;P. Taras;G. De Nardo;D. Monorchio;G. Onorato;C. Sciacca;M. Martinelli;G. Raven;C. P. Jessop;J. M. Lo Secco;K. Honscheid;R. Kass;J. Brau;R. Frey;N. B. Sinev;D. Strom;E. Torrence;E. Feltresi;M. Margoni;M. Morandin;M. Posocco;M. Rotondo;G. Simi;F. Simonetto;R. Stroili;S. Akar;E. Ben Haim;M. Bomben;G. R. Bonneaud;H. Briand;G. Calderini;J. Chauveau;P. Leruste;G. Marchiori;J. Ocariz;S. Sitt;M. Biasini;E. Manonia;S. Pacetti;A. Rossi;C. Angelini;G. Batignani;S. Bettarini;M. Carpinelli;G. Casarosa;A. Cervelli;M. Chrzaszcz;F. Forti;M. A. Giorgi;A. Lusiani;B. Oberhof;E. Paoloni;A. Perez;G. Rizzo;J. J. Walsh;D. Lopes Pegna;J. Olsen;A. J. S. Smith;R. Faccini;F. Ferrarotto;F. Ferroni;M. Gaspero;L. Li Gioi;G. Piredda;C. Bunnge;O. Grunberg;T. Hartmann;T. Leddig;C. Vo√ü;R. Waldi;T. Adye;E. O. Olaiya;F. F. Wilson;S. Emery;G. Hamel de Monchenault;G. Vasseur;C. Yeche;F. Anulli;D. Aston;D. J. Bard;J. F. Benitez;C. Cartaro;M. R. Convery;J. Dorfan;G. P. Dubois Felsmann;W. Dunwoodie;M. Ebert;R. C. Field;B. G. Fulsom;A. M. Gabareen;M. T. Graham;C. Hast;W. R. Innes;P. Kim;M. L. Kocian;D. W. G. S. Leith;D. Lindemann;B. Lindquist;S. Luitz;V. Luth;H. L. Lynch;D. B. MacFarlane;D. R. Muller;H. Neal;S. Nelson;M. Perl;T. Pulliam;B. N. Ratcliff;A. Roodman;A. A. Salnikov;R. H. Schindler;A. Snyder;D. Su;M. K. Sullivan;J. Vavra;A. P. Wagner;W. F. Wang;W. J. Wisniewski;M. Wittgen;D. H. Wright;H. W. Wulsin;V. Ziegler;W. Park;M. V. Purohit;R. M. White;J. R. Wilson;A. Randle Conde;S. J. Sekula;M. Bellis;P. R. Burchat;E. M. T. Puccio;M. S. Alam;J. A. Ernst;R. Gorodeisky;N. Guttman;D. R. Peimer;A. Soffer;S. M. Spanier;J. L. Ritchie;A. M. Ruland;R. F. Schwitters;B. C. Wray;J. M. Izen;X. C. Lou;F. Bianchi;F. De Mori;A. Filippi;D. Gamba;S. Zambito;L. Lanceri;L. Vitale;F. Martinez Vidal;A. Oyanguren;P. Villanueva Perez;J. Albert;S. Banerjee;F. U. Bernlochner;H. H. F. Choi;G. J. King;R. Kowalewski;M. J. Lewczuk;T. Lueck;I. M. Nugent;J. M. Roney;R. J. Sobie;N. Tasneem;T. J. Gershon;P. F. Harrison;T. E. Latham;H. R. Band;S. Dasu;Y. Pan;R. Prepost;S. L. Wu

2012

Abstract

We study the process e+e−→J/ψπ+π− with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies 10.58 and 10.54 GeV, and correspond to an integrated luminosity of 454 fb−1. We investigate the J/ψπ+π− mass distribution in the region from 3.5 to 5.5 GeV/c2. Below 3.7 GeV/c2 the ψ(2S) signal dominates, and above 4 GeV/c2 there is a significant peak due to the Y(4260). A fit to the data in the range 3.74–5.50 GeV/c2 yields a mass value 4245±5(stat)±4(syst) MeV/c2 and a width value 114+16−15(stat)±7(syst) MeV for this state. We do not confirm the report from the Belle Collaboration of a broad structure at 4.01 GeV/c2. In addition, we investigate the π+π− system which results from Y(4260) decay.

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	Settori scientifico-disciplinari dell'articolo
	
			Settore FIS/04 - Fisica Nucleare e Subnucleare
		
	Data di pubblicazione
	
			2012
		
	Rivista in ANCE
	
			PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
		
	DOI
	
			https://dx.doi.org/10.1103/PhysRevD.86.051102
		
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			01 - Articolo su periodico

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