We present a measurement of the cross section of the process $e^+e^-\to\pi^+pi^-\psi(2S)$ from threshold up to 8 GeV center-of-mass energy using events containing initial-state radiation, produced at the PEP-II $e^+e^-$ storage rings. The study is based on 298 fb$^{-1}$ of data recorded with the BaBar detector. A structure is observed in the cross-section not far above threshold, near 4.32 GeV. We also investigate the compatibility of this structure with the Y(4260) previously reported by this experiment.

Evidence of a Broad Structure at an Invariant Mass of 4.32  GeV/c2 in the Reaction e+e-→π+π-ψ(2S) Measured at BABAR / B. Aubert, R. Barate, M. Bona, D. Boutigny, F. Couderc, Y. Karyotakis, J.P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, A. Palano, J.C. Chen, N.D. Qi, G. Rong, P. Wang, Y.S. Zhu, G. Eigen, I. Ofte, B. Stugu, G.S. Abrams, M. Battaglia, D.N. Brown, J. Button-Shafer, R.N. Cahn, E. Charles, M.S. Gill, Y. Groysman, R.G. Jacobsen, J.A. Kadyk, L.T. Kerth, Y. G. Kolomensky, G. Kukartsev, G. Lynch, L.M. Mir, T.J. Orimoto, M. Pripstein, N.A. Roe, M.T. Ronan, W.A. Wenzel, P. del Amo Sanchez, M. Barrett, K.E. Ford, T.J. Harrison, A.J. Hart, C.M. Hawkes, S.E. Morgan, A.T. Watson, T. Held, H. Koch, B. Lewandowski, M. Pelizaeus, K. Peters, T. Schroeder, M. Steinke, J.T. Boyd, J.P. Burke, W.N. Cottingham, D. Walker, T. Cuhadar-Donszelmann, B.G. Fulsom, C. Hearty, N.S. Knecht, T.S. Mattison, J.A. McKenna, A. Khan, P. Kyberd, M. Saleem, D.J. Sherwood, L. Teodorescu, V.E. Blinov, A.D. Bukin, V.P. Druzhinin, V.B. Golubev, A.P. Onuchin, S.I. Serednyakov, Y.I. Skovpen, E.P. Solodov, K.Y. Todyshev, D.S. Best, M. Bondioli, M. Bruinsma, M. Chao, S. Curry, I. Eschrich, D. Kirkby, A.J. Lankford, P. Lund, M. Mandelkern, R.K. Mommsen, W. Roethel, D.P. Stoker, S. Abachi, C. Buchanan, S.D. Foulkes, J.W. Gary, O. Long, B.C. Shen, K. Wang, L. Zhang, H.K. Hadavand, E.J. Hill, H.P. Paar, S. Rahatlou, V. Sharma, J.W. Berryhill, C. Campagnari, A. Cunha, B. Dahmes, T.M. Hong, D. Kovalskyi, J.D. Richman, T.W. Beck, A.M. Eisner, C.J. Flacco, C.A. Heusch, J. Kroseberg, W.S. Lockman, G. Nesom, T. Schalk, B.A. Schumm, A. Seiden, P. Spradlin, D.C. Williams, M.G. Wilson, J. Albert, E. Chen, A. Dvoretskii, F. Fang, D.G. Hitlin, I. Narsky, T. Piatenko, F.C. Porter, A. Ryd, A. Samuel, G. Mancinelli, B.T. Meadows, K. Mishra, M.D. Sokoloff, F. Blanc, P.C. Bloom, S. Chen, W.T. Ford, J.F. Hirschauer, A. Kreisel, M. Nagel, U. Nauenberg, A. Olivas, W.O. Ruddick, J.G. Smith, K.A. Ulmer, S.R. Wagner J. Zhang, A. Chen, E.A. Eckhart, A. Soffer, W.H. Toki, R.J. Wilson, F. Winklmeier, Q. Zeng, D.D. Altenburg, E. Feltresi, A. Hauke, H. Jasper, A. Petzold, B. Spaan, T. Brandt, V. Klose, H.M. Lacker, W.F. Mader, R. Nogowski, J. Schubert, K.R. Schubert, R. Schwierz, J.E. Sundermann, A. Volk, D. Bernard, G.R. Bonneaud, P. Grenier, E. Latour, C. Thiebaux, M. Verderi, P.J. Clark, W. Gradl, F. Muheim, S. Playfer, A.I. Robertson, Y. Xie, M. Andreotti, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Luppi, M. Negrini, A. Petrella, L. Piemontese, E. Prencipe, F. Anulli, R. Baldini-Ferroli, A. Calcaterra, R. de Sangro, G. Finocchiaro, S. Pacetti, P. Patteri, I.M. Peruzzi, M. Piccolo, M. Rama, A. Zallo, A. Buzzo, R. Capra, R. Contri, M. Lo Vetere, M.M. Macri, M.R. Monge, S. Passaggio, C. Patrignani, E. Robutti, A. Santroni, S. Tosi, G. Brandenburg, K.S. Chaisanguanthum, M. Morii, J. Wu, R.S. Dubitzky, J. Marks, S. Schenk, U. Uwer, D.J. Bard, W. Bhimji, D.A. Bowerman, P.D. Dauncey, U. Egede, R.L. Flack, J.A. Nash, M.B. Nikolich, W. Panduro Vazquez, P.K. Behera, X. Chai, M.J. Charles, U. Mallik, N.T. Meyer, V. Ziegler, J. Cochran, H.B. Crawley, L. Dong, V. Eyges, W.T. Meyer, S. Prell, E.I. Rosenberg, A.E. Rubin, A.V. Gritsan, A.G. Denig, M. Fritsch, G. Schott, N. Arnaud, M. Davier, G. Grosdidier, A. Höcker, F. Le Diberder, V. Lepeltier, A.M. Lutz, A. Oyanguren, S. Pruvot, S. Rodier, P. Roudeau, M.H. Schune, A. Stocchi, W.F. Wang, G. Wormser, C.H. Cheng, D.J. Lange, D.M. Wright, C.A. Chavez, I.J. Forster, J.R. Fry, E. Gabathuler, R. Gamet, K.A. George, D.E. Hutchcroft, D.J. Payne, K.C. Schofield, C. Touramanis, A.J. Bevan, F. Di Lodovico, W. Menges, R. Sacco, G. Cowan, H.U. Flaecher, D.A. Hopkins, P.S. Jackson, T.R. McMahon, S. Ricciardi, F. Salvatore, A.C. Wren, D.N. Brown, C.L. Davis, J. Allison, N.R. Barlow, R.J. Barlow, Y.M. Chia, C.L. Edgar, G.D. Lafferty, M.T. Naisbit, J.C. Williams, J.I. Yi, C. Chen, W.D. Hulsbergen, A. Jawahery, C.K. Lae, D.A. Roberts, G. Simi, G. Blaylock, C. Dallapiccola, S.S. Hertzbach, X. Li, T.B. Moore, S. Saremi, H. Staengle, R. Cowan, G. Sciolla, S.J. Sekula, M. Spitznagel, F. Taylor, R.K. Yamamoto, H. Kim, S.E. Mclachlin, P.M. Patel, S.H. Robertson, A. Lazzaro, V.P. Lombardo, F. Palombo, J.M. Bauer, L. Cremaldi, V. Eschenburg, R. Godang, R. Kroeger, D.A. Sanders, D.J. Summers, H.W. Zhao, S. Brunet, D. Côté, M. Simard, P. Taras, F.B. Viaud, H. Nicholson, N. Cavallo, G. De Nardo, F. Fabozzi, C. Gatto, L. Lista, D. Monorchio, P. Paolucci, D. Piccolo, C. Sciacca, M. Baak, G. Raven, H.L. Snoek, C.P. Jessop, J.M. LoSecco, T. Allmendinger, G. Benelli, K.K. Gan, K. Honscheid, D. Hufnagel, P.D. Jackson, H. Kagan, R. Kass, A.M. Rahimi, R. Ter-Antonyan, Q.K. Wong, N.L. Blount, J. Brau, R. Frey, O. Igonkina, M. Lu, R. Rahmat, N.B. Sinev, D. Strom, J. Strube, E. Torrence, A. Gaz, M. Margoni, M. Morandin, A. Pompili, M. Posocco, M. Rotondo, F. Simonetto, R. Stroili, C. Voci, M. Benayoun, J. Chauveau, H. Briand, P. David, L. Del Buono, Ch. de la Vaissière, O. Hamon, B.L. Hartfiel, M.J.J. John, P. Leruste, J. Malclès, J. Ocariz, L. Roos, G. Therin, L. Gladney, J. Panetta, M. Biasini, R. Covarelli, C. Angelini, G. Batignani, S. Bettarini, F. Bucci, G. Calderini, M. Carpinelli, R. Cenci, F. Forti, M.A. Giorgi, A. Lusiani, G. Marchiori, M.A. Mazur, M. Morganti, N. Neri, G. Rizzo, J.J. Walsh, M. Haire, D. Judd, D.E. Wagoner, J. Biesiada, N. Danielson, P. Elmer, Y.P. Lau, C. Lu, J. Olsen, A.J.S. Smith, A.V. Telnov, F. Bellini, G. Cavoto, A. D’Orazio, D. del Re, E. Di Marco, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, L. Li Gioi, M.A. Mazzoni, S. Morganti, G. Piredda, F. Polci, F. Safai Tehrani, C. Voena, M. Ebert, H. Schröder, R. Waldi, T. Adye, N. De Groot, B. Franek, E.O. Olaiya, F.F. Wilson, R. Aleksan, S. Emery, A. Gaidot, S.F. Ganzhur, G. Hamel de Monchenault, W. Kozanecki, M. Legendre, G. Vasseur, C. Yèche, M. Zito, X.R. Chen, H. Liu, W. Park, M.V. Purohit, J.R. Wilson, M.T. Allen, D. Aston, R. Bartoldus, P. Bechtle, N. Berger, R. Claus, J.P. Coleman, M.R. Convery, M. Cristinziani, J.C. Dingfelder, J. Dorfan, G.P. Dubois-Felsmann, D. Dujmic, W. Dunwoodie, R.C. Field, T. Glanzman, S.J. Gowdy, M.T. Graham, V. Halyo, C. Hast, T. Hryn’ova, W.R. Innes, M.H. Kelsey, P. Kim, D.W.G.S. Leith, S. Li, S. Luitz, V. Luth, H.L. Lynch, D.B. MacFarlane, H. Marsiske, R. Messner, D.R. Muller, C.P. O’Grady, V.E. Ozcan, A. Perazzo, M. Perl, T. Pulliam, B.N. Ratcliff, A. Roodman, A.A. Salnikov, R.H. Schindler, J. Schwiening, A. Snyder, J. Stelzer, D. Su, M.K. Sullivan, K. Suzuki, S.K. Swain, J.M. Thompson, J. Va’vra, N. van Bakel, M. Weaver, A.J.R. Weinstein, W.J. Wisniewski, M. Wittgen, D.H. Wright, A.K. Yarritu, K. Yi, C.C. Young, P.R. Burchat, A.J. Edwards, S.A. Majewski, B.A. Petersen, C. Roat, L. Wilden, S. Ahmed, M.S. Alam, R. Bula, J.A. Ernst, V. Jain, B. Pan, M.A. Saeed, F.R. Wappler, S.B. Zain, W. Bugg, M. Krishnamurthy, S.M. Spanier, R. Eckmann, J.L. Ritchie, A. Satpathy, C.J. Schilling, R.F. Schwitters, J.M. Izen, X.C. Lou, S. Ye, F. Bianchi, F. Gallo, D. Gamba, M. Bomben, L. Bosisio, C. Cartaro, F. Cossutti, G. Della Ricca, S. Dittongo, L. Lanceri, L. Vitale, V. Azzolini, F. Martinez-Vidal, S. Banerjee, B. Bhuyan, C.M. Brown, D. Fortin, K. Hamano, R. Kowalewski, I.M. Nugent, J.M. Roney, R.J. Sobie, J.J. Back, P.F. Harrison, T.E. Latham, G.B. Mohanty, M. Pappagallo, H.R. Band, X. Chen, B. Cheng, S. Dasu, M. Datta, K.T. Flood, J.J. Hollar, P.E. Kutter, B. Mellado, A. Mihalyi, Y. Pan, M. Pierini, R. Prepost, S.L. Wu, Z. Yu, H. Neal. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 98:21(2007), pp. 212001.212001-1-212001.212001-7.

Evidence of a Broad Structure at an Invariant Mass of 4.32  GeV/c2 in the Reaction e+e-→π+π-ψ(2S) Measured at BABAR

A. Lazzaro;V.P. Lombardo;F. Palombo;N. Neri;
2007

Abstract

We present a measurement of the cross section of the process $e^+e^-\to\pi^+pi^-\psi(2S)$ from threshold up to 8 GeV center-of-mass energy using events containing initial-state radiation, produced at the PEP-II $e^+e^-$ storage rings. The study is based on 298 fb$^{-1}$ of data recorded with the BaBar detector. A structure is observed in the cross-section not far above threshold, near 4.32 GeV. We also investigate the compatibility of this structure with the Y(4260) previously reported by this experiment.
B decays ; spettroscopia dei mesoni ; interazioni e+ e-
Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
2007
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS 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/2434/39702
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 348
  • ???jsp.display-item.citation.isi??? 254
social impact