Observation of the chi(c2)(2P) meson in the reaction gamma gamma -> D(D)over-bar at BABAR RID C-5223-2009

Aubert, B; Karyotakis, Y; Lees, Jp; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V; Tico, Jg; Grauges, E; Martinelli, M; Palano, A; Pappagallo, M; Eigen, G; Stugu, B; Sun, L; Battaglia, M; Brown, Dn; Hooberman, B; Kerth, Lt; Kolomensky, Yg; Lynch, G; Osipenkov, Il; Tackmann, K; Tanabe, T; Hawkes, Cm; Soni, N; Watson, At; Koch, H; Schroeder, T; Asgeirsson, Dj; Hearty, C; Mattison, Ts; McKenna, Ja; Barrett, M; Khan, A; Randle Conde, A; Blinov, Ve; Bukin, Ad; Buzykaev, Ar; Druzhinin, Vp; Golubev, Vb; Onuchin, Ap; Serednyakov, Si; Skovpen, Yi; Solodov, Ep; Todyshev, Ky; Bondioli, M; Curry, S; Eschrich, I; Kirkby, D; Lankford, Aj; Lund, P; Mandelkern, M; Martin, Ec; Stoker, Dp; Atmacan, H; Gary, Jw; Liu, F; Long, O; Vitug, Gm; Yasin, Z; Sharma, V; Campagnari, C; Hong, Tm; Kovalskyi, D; Mazur, Ma; Richman, Jd; Beck, Tw; Eisner, Am; Heusch, Ca; Kroseberg, J; Lockman, Ws; Martinez, Aj; Schalk, T; Schumm, Ba; Seiden, A; Winstrom, Lo; Cheng, Ch; Doll, Da; Echenard, B; Fang, F; Hitlin, Dg; Narsky, I; 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Kroeger, R; Sonnek, P; Summers, Dj; Zhao, Hw; Nguyen, X; Simard, M; Taras, P; Nicholson, H; De Nardo, G; Lista, L; Monorchio, D; Onorato, G; Sciacca, C; Raven, G; Snoek, Hl; Jessop, Cp; Knoepfel, Kj; LoSecco, Jm; Wang, Wf; Corwin, La; Honscheid, K; Kagan, H; Kass, R; Morris, Jp; Rahimi, Am; Sekula, Sj; Blount, Nl; Brau, J; Frey, R; Igonkina, O; Kolb, Ja; Lu, M; Rahmat, R; Sinev, Nb; Strom, D; Strube, J; Torrence, E; Castelli, G; Gagliardi, N; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simonetto, F; Stroili, R; Voci, C; Sanchez, Pd; Ben Haim, E; Bonneaud, Gr; Briand, H; Chauveau, J; Hamon, O; Leruste, P; Marchiori, G; Ocariz, J; Perez, A; Prendki, J; Sitt, S; Gladney, L; Biasini, M; Manoni, E; Angelini, C; Batignani, G; Bettarini, S; Calderini, G; Carpinelli, M; Cervelli, A; Forti, F; Giorgi, Ma; Lusiani, Alberto; Morganti, M; Neri, N; Paoloni, E; Rizzo, G; Walsh, Jj; Pegna, Dl; Lu, C; Olsen, J; Smith, Ajs; Telnov, Av; Anulli, F; Baracchini, E; Cavoto, G; Faccini, R; Ferrarotto, F; 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doi:10.1103/PhysRevD.81.092003

A search for the Z(3930) resonance in gamma gamma production of the D (D) over bar system has been performed using a data sample corresponding to an integrated luminosity of 384 fb(-1) recorded by the BABAR experiment at the PEP-II asymmetric-energy electron-positron collider. The D (D) over bar invariant mass distribution shows clear evidence of the Z(3930) state with a significance of 5.8 sigma. We determine mass and width values of (3926.7 +/- 2.7 +/- 1.1) MeV/c(2) and (21.3 +/- 6.8 +/- 3.6) MeV, respectively. A decay angular analysis provides evidence that the Z(3930) is a tensor state with positive parity and C parity (J(PC) = 2(++)); therefore we identify the Z(3930) state as the chi(c2)(2P) meson. The value of the partial width Gamma(gamma gamma) x B(Z(3930) -> D (D) over bar) is found to be (0.24 +/- 0.05 +/- 0.04) keV.

Titolo:	Observation of the chi(c2)(2P) meson in the reaction gamma gamma -> D(D)over-bar at BABAR RID C-5223-2009
Autori:	Aubert B Karyotakis Y Lees JP Poireau V Prencipe E Prudent X Tisserand V Tico JG Grauges E Martinelli M Palano A Pappagallo M Eigen G Stugu B Sun L Battaglia M Brown DN Hooberman B Kerth LT Kolomensky YG Lynch G Osipenkov IL Tackmann K Tanabe T Hawkes CM Soni N Watson AT Koch H Schroeder T Asgeirsson DJ Hearty C Mattison TS McKenna JA Barrett M Khan A Randle Conde A Blinov VE Bukin AD Buzykaev AR Druzhinin VP Golubev VB Onuchin AP Serednyakov SI Skovpen YI Solodov EP Todyshev KY Bondioli M Curry S Eschrich I Kirkby D Lankford AJ Lund P Mandelkern M Martin EC Stoker DP Atmacan H Gary JW Liu F Long O Vitug GM Yasin Z Sharma V Campagnari C Hong TM Kovalskyi D Mazur MA Richman JD Beck TW Eisner AM Heusch CA Kroseberg J Lockman WS Martinez AJ Schalk T Schumm BA Seiden A Winstrom LO Cheng CH Doll DA Echenard B Fang F Hitlin DG Narsky I Ongmongkolkul P Piatenko T Porter FC Andreassen R Dubrovin MS Mancinelli G Meadows BT Mishra K Sokoloff MD Bloom PC Ford WT Gaz A Hirschauer JF Nagel M Nauenberg U Smith JG Wagner SR Ayad R Toki WH Feltresi E Hauke A Jasper H Karbach TM Merkel J Petzold A Spaan B Wacker K Kobel MJ Schubert KR Schwierz R Bernard D Latour E Verderi M Clark PJ Playfer S Watson JE Andreotti M Bettoni D Bozzi C Calabrese R Cecchi A Cibinetto G Fioravanti E Franchini P Luppi E Munerato M Negrini M Petrella A Piemontese L Santoro V Baldini Ferroli R Calcaterra A de Sangro R Finocchiaro G Pacetti S Patteri P Peruzzi IM Piccolo M Rama M Zallo A Contri R Guido E Lo Vetere M Monge MR Passaggio S Patrignani C Robutti E Tosi S Morii M Adametz A Marks J Schenk S Uwer U Bernlochner FU Lacker HM Lueck T Volk A Dauncey PD Tibbetts M Behera PK Charles MJ Mallik U Chen C Cochran J Crawley HB Dong L Eyges V Meyer WT Prell S Rosenberg EI Rubin AE Gao YY Gritsan AV Guo ZJ Arnaud N Davier M Derkach D da Costa JF Grosdidier G Le Diberder F Lepeltier V Lutz AM Malaescu B Roudeau P Schune MH Serrano J Sordini V Stocchi A Wormser G Lange DJ Wright DM Bingham I Burke JP Chavez CA Fry JR Gabathuler E Gamet R Hutchcroft DE Payne DJ Touramanis C Bevan AJ Clarke CK Di Lodovico F Sacco R Sigamani M Cowan G Paramesvaran S Wren AC Brown DN Davis CL Denig AG Fritsch M Gradl W Hafner A Alwyn KE Bailey D Barlow RJ Jackson G Lafferty GD West TJ Yi JI Anderson J Jawahery A Roberts DA Simi G Tuggle JM Dallapiccola C Salvati E Cowan R Dujmic D Fisher PH Henderson SW Sciolla G Spitznagel M Yamamoto RK Zhao M Patel PM Robertson SH Schram M Biassoni P Lazzaro A Lombardo V Palombo F Stracka S Cremaldi L Godang R Kroeger R Sonnek P Summers DJ Zhao HW Nguyen X Simard M Taras P Nicholson H De Nardo G Lista L Monorchio D Onorato G Sciacca C Raven G Snoek HL Jessop CP Knoepfel KJ LoSecco JM Wang WF Corwin LA Honscheid K Kagan H Kass R Morris JP Rahimi AM Sekula SJ Blount NL Brau J Frey R Igonkina O Kolb JA Lu M Rahmat R Sinev NB Strom D Strube J Torrence E Castelli G Gagliardi N Margoni M Morandin M Posocco M Rotondo M Simonetto F Stroili R Voci C Sanchez PD Ben Haim E Bonneaud GR Briand H Chauveau J Hamon O Leruste P Marchiori G Ocariz J Perez A Prendki J Sitt S Gladney L Biasini M Manoni E Angelini C Batignani G Bettarini S Calderini G Carpinelli M Cervelli A Forti F Giorgi MA LUSIANI, Alberto Morganti M Neri N Paoloni E Rizzo G Walsh JJ Pegna DL Lu C Olsen J Smith AJS Telnov AV Anulli F Baracchini E Cavoto G Faccini R Ferrarotto F Ferroni F Gaspero M Jackson PD Gioi LL Mazzoni MA Morganti S Piredda G Renga F Voena C Ebert M Hartmann T Schroder H Waldi R Adye T Franek B Olaiya EO Wilson FF Emery S Esteve L de Monchenault GH Kozanecki W Vasseur G Yeche C Zito M Allen MT Aston D Bard DJ Bartoldus R Benitez JF Cenci R Coleman JP Convery MR Dingfelder JC Dorfan J Dubois Felsmann GP Dunwoodie W Field RC Sevilla MF Fulsom BG Gabareen AM Graham MT Grenier P Hast C Innes WR Kaminski J Kelsey MH Kim H Kim P Kocian ML Leith DWGS Li S Lindquist B Luitz S Luth V Lynch HL MacFarlane DB Marsiske H Messner R Muller DR Neal H Nelson S O'Grady CP Ofte I Perl M Ratcliff BN Roodman A Salnikov AA Schindler RH Schwiening J Snyder A Su D Sullivan MK Suzuki K Swain SK Thompson JM Va'vra J Wagner AP Weaver M West CA Wisniewski WJ Wittgen M Wright DH Wulsin HW Yarritu AK Young CC Ziegler V Chen XR Liu H Park W Purohit MV White RM Wilson JR Bellis M Burchat PR Edwards AJ Miyashita TS Ahmed S Alam MS Ernst JA Pan B Saeed MA Zain SB Soffer A Spanier SM Wogsland BJ Eckmann R Ritchie JL Ruland AM Schilling CJ Schwitters RF Wray BC Drummond BW Izen JM Lou XC Bianchi F Gamba D Pelliccioni M Bomben M Bosisio L Cartaro C Della Ricca G Lanceri L Vitale L Azzolini V Lopez March N Martinez Vidal F Milanes DA Oyanguren A Albert J Banerjee S Bhuyan B Choi HHF Hamano K King GJ Kowalewski R Lewczuk MJ Nugent IM Roney JM Sobie RJ Gershon TJ Harrison PF Ilic J Latham TE Mohanty GB Puccio EMT Band HR Chen X Dasu S Flood KT Pan Y Prepost R Vuosalo CO Wu SL mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2010
Rivista:	PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevD.81.092003
Handle:	http://hdl.handle.net/11384/5301
Appare nelle tipologie:	1.1 Articolo in rivista

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