CaltechAUTHORS
  A Caltech Library Service

Observation of e^+e^- → ρ^+ρ^- near √s= 10.58 Ge V

Aubert , B. and Bona, M. and Karyotakis, Y. and Lees, J. P. and Poireau, V. and Prencipe, E. and Prudent, X. and Tisserand, V. and Garra-Tico, J. and Grauges, E. and Lopez, L. and Palano, A. and Pappagallo, M. and Eigen, G. and Stugu, B. and Sun , L. and Abrams, G. S. and Battaglia, M. and Brown, D. N. and Cahn, R. N. and Jacobsen, R. G. and Kerth, L. T. and Kolomensky, Yu. G. and Kukartsev, G. and Lynch, G. and Osipenkov, I. L. and Ronan, M. T. and Tackmann, K. and Tanabe, T. and Hawkes, C. M. and Soni, N. and Watson, A. T. and Koch, H. and Schroeder, T. and Walker, D. and Asgeirsson, D. J. and Fulsom, B. G. and Hearty, C. and Mattison, T. S. and McKenna, J. A. and Barrett, M. and Khan, A. and Teodorescu, L. and Blinov, V. E. and Bukin, A. D. and Buzykaev, A. R. and Druzhinin, V. P. and Golubev, V. B. and Onuchin, A. P. and Serednyakov, S. I. and Skovpen, Yu. I. and Solodov, E. P. and Todyshev, K. Yu. and Bondioli, M. and Curry, S. and Eschrich, I. and Kirkby, D. and Lankford, A. J. and Lund, P. and Mandelkern, M. and Martin, E. C. and Stoker, D. P. and Abachi, S. and Buchanan, C. and Gary, J. W. and Liu , F. and Long, O. and Shen, B. C. and Vitug, G. M. and Yasin, Z. and Zhang, L. and Sharma, V. and Campagnari, C. and Hong, T. M. and Kovalskyi, D. and Mazur, M. A. and Richman, J. D. and Beck, T. W. and Eisner, A. M. and Flacco, C. J. and Heusch, C. A. and Kroseberg, J. and Lockman, W. S. and Schalk, T. and Schumm, B. A. and Seiden, A. and Wang, L. and Wilson, M. G. and Winstrom, L. O. and Cheng, C. H. and Doll, D. A. and Echenard, B. and Fang, F. and Hitlin, D. G. and Narsky, I. and Piatenko, T. and Porter, F. C. and Andreassen, R. and Mancinelli, G. and Meadows, B. T. and Mishra, K. and Sokoloff, M. D. and Bloom, P. C. and Ford, W. T. and Gaz, A. and Hirschauer, J. F. and Kreisel, A. and Nagel, M. and Nauenberg, U. and Smith, J. G. and Ulmer, K. A. and Wagner, S. R. and Ayad, R. and Soffer, A. and Toki, W. H. and Wilson, R. J. and Altenburg, D. D. and Feltresi, E. and Hauke, A. and Jasper, H. and Karbach, M. and Merkel, J. and Petzold, A. and Spaan, B. and Wacker, K. and Kobel, M. J. and Mader, W. F. and Nogowski, R. and Schubert, K. R. and Schwierz, R. and Sundermann, J. E. and Volk, A. and Bernard, D. and Bonneaud, G. R. and Latour, E. and Thiebaux, Ch. and Verderi, M. and Clark, P. J. and Gradl, W. and Playfer, S. and Watson, J. E. and Andreotti, M. and Bettoni, D. and Bozzi, C. and Calabrese, R. and Cecchi, A. and Cibinetto, G. and Franchini, P. and Luppi, E. and Negrini, M. and Petrella, A. and Piemontese, L. and Santoro, V. and Baldini-Ferroli, R. and Calcaterra, A. and De-Sangro, R. and Finocchiaro, G. and Pacetti, S. and Peruzzi, I. M. and Piccolo, M. and Rama, M. and Zallo, A. and Buzzo, A. and Contri, R. and Lo-Vetere, M. and Macri, M. M. and Monge, M. R. and Passaggio, S. and Patrignani, C. and Robutti, E. and Santroni, A. and Tosi, S. and Chaisanguanthum, K. S. and Morii, M. and Marks, J. and Schenk, S. and Uwer, U. and Klose, V. and Lacker, H. M. and Bard, D. J. and Dauncey, P. D. and Nash, J. A. and Panduro-Vazquez, W. and Tibbetts, M. and Behera, P. K. and Chai, X. and Charles, M. J. and Mallik, U. and Cochran, J. and Crawley, H. B. and Dong, L. and Meyer, W. T. and Prell, S. and Rosenberg, E. I. and Rubin, A. E. and Gao, Y. Y. and Gritsan, A. V. and Guo, Z. J. and Lae, C. K. and Denig, A. G. and Fritsch, M. and Schott, G. and Arnaud, N. and Béquilleux, J. and D'Orazio, A. and Davier, M. and Firmino-da-Costa, J. and Grosdidier, G. and Höcker, A. and Lepeltier, V. and Le-Diberder, F. and Lutz, A. M. and Pruvot, S. and Roudeau, P. and Schune, M. H. and Serrano, J. and Sordini, V. and Stocchi, A. and Wormser, G. and Lange, D. J. and Wright, D. M. and Bingham, I. and Burke, J. P. and Chavez, C. A. and Fry, J. R. and Gabathuler, E. and Gamet, R. and Hutchcroft, D. E. and Payne, D. J. and Touramanis, C. and Bevan, A. J. and Clarke, C. K. and George, K. A. and Di-Lodovico, F. and Sacco, R. and Sigamani, M. and Cowan, G. and Flaecher, H. U. and Hopkins, D. A. and Paramesvaran, S. and Salvatore, F. and Wren, A. C. and Brown, D. N. and Davis, C. L. and Alwyn, K. E. and Bailey, D. S. and Barlow, R. J. and Chia, Y. M. and Edgar, C. L. and Lafferty, G. D. and West, T. J. and Yi, J. I. and Anderson, J. and Chen, C. and Jawahery, A. and Roberts, D. A. and Simi, G. and Tuggle, J. M. and Dallapiccola, C. and Li, X. and Salvati, E. and Saremi, S. and Cowan, R. and Dujmic, D. and Fisher, P. H. and Koeneke, K. and Sciolla, G. and Spitznagel, M. and Taylor, F. and Yamamoto, R. K. and Zhao, M. and Patel, P. M. and Robertson, S. H. and Lazzaro, A. and Lombardo, V. and Palombo, F. and Bauer, J. M. and Cremaldi, L. and Eschenburg, V. and Godang, R. and Kroeger, R. and Sanders, D. A. and Summers, D. J. and Zhao, H. W. and Simard, M. and Taras, P. and Viaud, F. B. and Nicholson, H. and De-Nardo, G. and Lista, L. and Monorchio, D. and Onorato, G. and Sciacca, C. and Raven, G. and Snoek, H. L. and Jessop, C. P. and Knoepfel, K. J. and LoSecco, J. M. and Wang, W. F. and Benelli, G. and Corwin, L. A. and Honscheid, K. and Kagan, H. and Kass, R. and Morris, J. P. and Rahimi, A. M. and Regensburger, J. J. and Sekula, S. J. and Wong, Q. K. and Blount, N. L. and Brau, J. and Frey, R. and Igonkina, O. and Kolb, J. A. and Lu, M. and Rahmat, R. and Sinev, N. B. and Strom, D. and Strube, J. and Torrence, E. and Castelli, G. and Gagliardi, N. and Margoni, M. and Morandin, M. and Posocco, M. and Rotondo, M. and Simonetto, F. and Stroili, R. and Voci, C. and del-Amo-Sanchez, P. and Ben-Haim, E. and Briand, H. and Calderini, G. and Chauveau, J. and David, P. and Del-Buono, L. and Hamon, O. and Leruste, Ph. and Ocariz, J. and Perez, A. and Prendki, J. and Gladney, L. and Biasini, M. and Covarelli, R. and Manoni, E. and Angelini, C. and Batignani, G. and Bettarini, S. and Carpinelli, M. and Cervelli, A. and Forti, F. and Giorgi, M. A. and Lusiani, A. and Marchiori, G. and Morganti, M. and Neri, N. and Paoloni, E. and Rizzo, G. and Walsh, J. J. and Biesiada, J. and Lopes-Pegna, D. and Lu, C. and Olsen, J. and Smith, A. J. S. and Telnov, A. V. and Anulli, F. and Baracchini, E. and Cavoto, G. and del-Re, D. and Di-Marco, E. and Faccini, R. and Ferrarotto, F. and Ferroni, F. and Gaspero, M. and Jackson, P. D. and Li-Gioi, L. and Mazzoni, M. A. and Morganti, S. and Piredda, G. and Polci, F. and Renga, F. and Voena, C. and Ebert, M. and Hartmann, T. and Schröder, H. and Waldi, R. and Adye, T. and Franek, B. and Olaiya, E. O. and Roethel, W. and Wilson, F. F. and Emery, S. and Escalier, M. and Esteve, L. and Gaidot, A. and Ganzhur, S. F. and Hamel-de-Monchenault, G. and Kozanecki, W. and Vasseur, G. and Yèche, Ch. and Zito, M. and Chen, X. R. and Liu, H. and Park, W. and Purohit, M. V. and White, R. M. and WIlson, J. R. and Allen, M. T. and Aston, D. and Bartoldus, R. and Bechtle, P. and Benitez, J. F. and Cenci, R. and Coleman, J. P. and Convery, M. R. and Dingfelder, J. C. and Dorfan, J. and Dubois-Felsmann, G. P. and Dunwoodie, W. and Field, R. C. and Gabareen, A. M. and Gowdy, S. J. and Graham, M. T. and Grenier, P. and Hast, C. and Innes, W. R. and Kaminski, J. and Kelsey, M. H. and Kim, H. and Kim, P. and Kocian, M. L. and Leith, D. W. G. S. and Li, S. and Lindquist, B. and Luitz, S. and Luth, V. and Lynch, H. L. and MacFarlane, D. B. and Marsiske, H. and Messner, R. and Muller, D. R. and Neal, H. and Nelson, S. and O'Grady, C. P. and Ofte, I. and Perazzo, A. and Perl, M. and Ratcliff, B. N. and Roodman, A. and Salnikov, A. A. and Schindler, R. H. and Schwiening, J. and Snyder, A. and Su, D. and Sullivan, M. K. and Suzuki, K. and Swain, S. K. and Thompson, J. M. and Va'vra, J. and Wagner, A. P. and Weaver, M. and West, C. A. and Wisniewski, W. J. and Wittgen, M. and Wright, D. H. and Wulsin, H. W. and Yarritu, A. K. and Yi, K. and Young, C. C. and Ziegler, V. and Burchat, P. R. and Edwards, A. J. and Majewski, S. A. and Miyashita, T. S. and Petersen, B. A. and Wilden, L. and Ahmed, S. and Alam, M. S. and Ernst, J. A. and Pan, B. and Saeed, M. A. and Zain, S. B. and Spanier, S. M. and Wogsland, B. J. and Eckmann, R. and Ritchie, J. L. and Ruland, A. M. and Schilling, C. J. and Schwitters, R. F. and Drummond, B. W. and Izen, J. M. and Lou, X. C. and Bianchi, F. and Gamba, D. and Pelliccioni, M. and Bomben, M. and Bosisio, L. and Cartaro, C. and Della-Ricca, G. and Lanceri, L. and Vitale, L. and Azzolini, V. and Lopez-March, N. and Martinez-Vidal, F. and Milanes, D. A. and Oyanguren, A. and Albert, J. and Banerjee, Sw. and Bhuyan, B. and Choi, H. H. F. and Hamano, K. and Kowalewski, R. and Lewczuk, M. J. and Nugent, I. M. and Roney, J. M. and Sobie, R. J. and Gershon, T. J. and Harrison, P. F. and Ilic, J. and Latham, T. E. and Mohanty, G. B. and Band, H. R. and Chen, X. and Dasu, S. and Flood, K. T. and Pan, Y. and Pierini, M. and Prepost, R. and Vuosalo, C. O. and Wu, S. L. (2008) Observation of e^+e^- → ρ^+ρ^- near √s= 10.58 Ge V. Physical Review D, 78 (7). Art. No. 071103. ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:20100107-101103354

[img]
Preview
PDF - Published Version
See Usage Policy.

2125Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20100107-101103354

Abstract

We report the first observation of e^+e^- → ρ^+ρ^-, in a data sample of 379 fb^(-1) collected with the BABAR detector at the PEP-II e+e- storage ring at center-of-mass energies near √s = 10:58 GeV. We measure a cross section of σ(e^+e^- → ρ^+ρ^-)= 8:3 ± 0:7(stat)± 0:8(syst) fb within the range of │cosθ^*│ < 0:8 and │ cosθ_±│ < 0:85, where θ^* is the center-of-mass polar angle of the ρ^± meson and θ_± are the angles in the ρ^± rest frame between the direction of the boost from the laboratory frame and the direction of the π^±. Assuming production through single-photon annihilation, there are three independent helicity amplitudes. We measure the ratios of their squared moduli to be │F_(00)│^2:│F_(10)│^2:│F_(11)│^2 = 0:51 ± 0:14(stat) ± 0:07(syst):0:10 ± 0:04(stat) ± 0:01(syst):0:04 ± 0:03(stat) ± 0:01(syst). The │F_(00)│^2 result is inconsistent with the prediction of 1.0 made by QCD models with a significance of 3.1 standard deviations including systematic uncertainties.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.78.071103DOIUNSPECIFIED
http://prd.aps.org/abstract/PRD/v78/i7/e071103PublisherUNSPECIFIED
Additional Information:© 2008 The American Physical Society. Received 24 June 2008; published 17 October 2008. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. We wish to thank S. Brodsky, A. Goldhaber, and L. Dixon for helpful discussions. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRSIN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.
Funders:
Funding AgencyGrant Number
Stanford Linear Accelerator CenterUNSPECIFIED
U.S. Department of EnergyUNSPECIFIED
U.S. NSFUNSPECIFIED
Natural Sciences and Engineering Research Council (Canada)UNSPECIFIED
Commissariat à l'Énergie Atomique (France)UNSPECIFIED
Centre National de la Recherche Scientifique (France)UNSPECIFIED
Institut National de Physique Nucléaire et Physique des Particules (France) UNSPECIFIED
Bundesministerium für Bildung und Forschung (Germany)UNSPECIFIED
Deutsche Forschungsgemeinschaft(Germany)UNSPECIFIED
IIstituto Nazionale di Fisica Nucleare (Italy)UNSPECIFIED
Foundation for Fundamental Research on Matter(The Netherlands)UNSPECIFIED
Research Council of Norway (Norway)UNSPECIFIED
MES (Russia)UNSPECIFIED
Ministerio de Educación y Ciencia (Spain)UNSPECIFIED
Science and Technology Facilities Council (United Kingdom)UNSPECIFIED
Marie Curie European Investment Fund (European Union)UNSPECIFIED
A. P. Sloan FoundationUNSPECIFIED
Classification Code:PACS:1366Bc, 13.25-k, 14.40.Ev
Record Number:CaltechAUTHORS:20100107-101103354
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20100107-101103354
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17089
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:11 Jan 2010 23:27
Last Modified:26 Dec 2012 11:40

Repository Staff Only: item control page