Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate.

Author	: B Aubert R Barate D Boutigny JM Gaillard A Hicheur Y Karyotakis JP Lees P Robbe Tisserand V A Zghiche A Palano A Pompili JC Chen ND Qi G Rong P Wang YS Zhu G Eigen I Ofte B Stugu GS Abrams AW Borgland AB Breon DN Brown J Button-Shafer RN Cahn E Charles CT Day MS Gill AV Gritsan Y Groysman RG Jacobsen RW Kadel J Kadyk LT Kerth YG Kolomensky JF Kral G Kukartsev C LeClerc ME Levi G Lynch LM Mir PJ Oddone TJ Orimoto M Pripstein NA Roe A Romosan MT Ronan VG Shelkov AV Telnov WA Wenzel K Ford TJ Harrison CM Hawkes DJ Knowles SE Morgan RC Penny AT Watson NK Watson T Deppermann K Goetzen H Koch B Lewandowski M Pelizaeus K Peters H Schmuecker M Steinke NR Barlow JT Boyd N Chevalier WN Cottingham MP Kelly TE Latham C Mackay FF Wilson K Abe T Cuhadar-Donszelmann C Hearty TS Mattison JA McKenna D Thiessen P Kyberd AK McKemey VE Blinov AD Bukin VB Golubev VN Ivanchenko EA Kravchenko AP Onuchin SI Serednyakov YI Skovpen EP Solodov AN Yushkov D Best M Bruinsma M Chao D Kirkby AJ Lankford M Mandelkern RK Mommsen W Roethel DP Stoker C Buchanan BL Hartfiel BC Shen D Del Re HK Hadavand EJ Hill DB MacFarlane HP Paar Sh Rahatlou U Schwanke Sharma V JW Berryhill C Campagnari B Dahmes N Kuznetsova SL Levy O Long A Lu MA Mazur JD Richman W Verkerke TW Beck J Beringer AM Eisner CA Heusch WS Lockman T Schalk RE Schmitz BA Schumm A Seiden M Turri W Walkowiak DC Williams MG Wilson J Albert E Chen GP Dubois-Felsmann A Dvoretskii DG Hitlin I Narsky FC Porter A Ryd A Samuel S Yang S Jayatilleke G Mancinelli BT Meadows MD Sokoloff T Abe F Blanc P Bloom S Chen PJ Clark WT Ford U Nauenberg A Olivas P Rankin J Roy JG Smith WC Van Hoek L Zhang JL Harton T Hu A Soffer WH Toki RJ Wilson J Zhang D Altenburg T Brandt J Brose T Colberg M Dickopp RS Dubitzky A Hauke HM Lacker E Maly R Müller-Pfefferkorn R Nogowski S Otto J Schubert KR Schubert R Schwierz B Spaan L Wilden D Bernard GR Bonneaud F Brochard J Cohen-Tanugi P Grenier Ch Thiebaux G Vasileiadis M Verderi A Khan D Lavin F Muheim S Playfer JE Swain J Tinslay M Andreotti Azzolini V D Bettoni C Bozzi R Calabrese G Cibinetto E Luppi M Negrini L Piemontese A Sarti E Treadwell F Anulli R Baldini-Ferroli M Biasini A Calcaterra R de Sangro D Falciai G Finocchiaro P Patteri IM Peruzzi M Piccolo M Pioppi A Zallo A Buzzo R Capra R Contri G Crosetti Lo Vetere M Macri MR Monge S Passaggio C Patrignani E Robutti A Santroni S Tosi S Bailey M Morii E Won W Bhimji DA Bowerman PD Dauncey U Egede I Eschrich Gaillard JR GW Morton JA Nash P Sanders GP Taylor GJ Grenier SJ Lee U Mallik J Cochran HB Crawley J Lamsa WT Meyer S Prell EI Rosenberg J Yi M Davier G Grosdidier A Höcker S Laplace F Le Diberder Lepeltier V AM Lutz TC Petersen S Plaszczynski MH Schune L Tantot G Wormser Brigljević V CH Cheng DJ Lange DM Wright AJ Bevan JP Coleman Fry JR E Gabathuler R Gamet M Kay RJ Parry DJ Payne RJ Sloane C Touramanis JJ Back PF Harrison HW Shorthouse P Strother PB Vidal CL Brown G Cowan RL Flack HU Flaecher S George MG Green A Kurup CE Marker TR McMahon S Ricciardi F Salvatore G Vaitsas MA Winter D Brown CL Davis J Allison RJ Barlow AC Forti PA Hart F Jackson GD Lafferty AJ Lyon JH Weatherall JC Williams A Farbin A Jawahery D Kovalskyi CK Lae Lillard V DA Roberts G Blaylock C Dallapiccola KT Flood SS Hertzbach R Kofler VB Koptchev TB Moore S Saremi H Staengle S Willocq R Cowan G Sciolla F Taylor RK Yamamoto DJ Mangeol M Milek PM Patel A Lazzaro F Palombo JM Bauer L Cremaldi Eschenburg V R Godang R Kroeger J Reidy DA Sanders DJ Summers HW Zhao S Brunet D Cote-Ahern C Hast P Taras H Nicholson C Cartaro N Cavallo G De Nardo F Fabozzi C Gatto L Lista P Paolucci D Piccolo C Sciacca MA Baak G Raven JM LoSecco TA Gabriel B Brau KK Gan K Honscheid D Hufnagel H Kagan R Kass T Pulliam QK Wong J Brau R Frey CT Potter NB Sinev D Strom E Torrence F Colecchia A Dorigo F Galeazzi M Margoni M Morandin M Posocco M Rotondo F Simonetto R Stroili G Tiozzo C Voci M Benayoun H Briand J Chauveau P David Ch de la Vaissière L Del Buono O Hamon MJ John P Leruste J Ocariz M Pivk L Roos J Stark S T'jampens G Therin PF Manfredi Re V PK Behera L Gladney QH Guo J Panetta C Angelini G Batignani S Bettarini M Bondioli F Bucci G Calderini M Carpinelli F Forti MA Giorgi A Lusiani G Marchiori F Martinez-Vidal M Morganti N Neri E Paoloni M Rama G Rizzo F Sandrelli J Walsh M Haire D Judd K Paick DE Wagoner N Danielson P Elmer C Lu Miftakov V J Olsen AJ Smith HA Tanaka EW Varnes F Bellini G Cavoto R Faccini F Ferrarotto F Ferroni M Gaspero MA Mazzoni S Morganti M Pierini G Piredda Safai Tehrani C Voena S Christ G Wagner R Waldi T Adye N De Groot B Franek NI Geddes GP Gopal EO Olaiya SM Xella R Aleksan S Emery A Gaidot SF Ganzhur PF Giraud Hamel de Monchenault W Kozanecki M Langer M Legendre GW London B Mayer G Schott G Vasseur Ch Yeche M Zito MV Purohit AW Weidemann FX Yumiceva D Aston R Bartoldus N Berger AM Boyarski OL Buchmueller MR Convery DP Coupal D Dong J Dorfan D Dujmic W Dunwoodie RC Field T Glanzman SJ Gowdy E Grauges-Pous T Hadig Halyo V T Hryn'ova WR Innes CP Jessop MH Kelsey P Kim ML Kocian U Langenegger DW Leith S Luitz Luth V HL Lynch H Marsiske R Messner DR Muller CP O'Grady VE Ozcan A Perazzo M Perl S Petrak BN Ratcliff SH Robertson A Roodman AA Salnikov RH Schindler J Schwiening G Simi A Snyder A Soha J Stelzer D Su MK Sullivan J Va'vra Wagner SR M Weaver AJ Weinstein WJ Wisniewski DH Wright CC Young PR Burchat AJ Edwards TI Meyer BA Petersen C Roat S Ahmed MS Alam JA Ernst M Saleem FR Wappler W Bugg M Krishnamurthy SM Spanier R Eckmann H Kim JL Ritchie RF Schwitters JM Izen I Kitayama XC Lou S Ye F Bianchi M Bona F Gallo D Gamba C Borean L Bosisio Della Ricca S Dittongo S Grancagnolo L Lanceri P Poropat L Vitale G Vuagnin RS Panvini S Banerjee CM Brown D Fortin PD Jackson R Kowalewski JM Roney HR Band S Dasu M Datta AM Eichenbaum Johnson JR PE Kutter H Li R Liu F Di Lodovico A Mihalyi AK Mohapatra Y Pan R Prepost SJ Sekula JH von Wimmersperg-Toeller J Wu SL Wu Z Yu H Neal Collaboration BABAR
Abstract	: The mass m(eta(c)) and total width Gamma(eta(c))(tot) of the eta(c) meson have been measured in two-photon interactions at the SLAC e(+)e(-) asymmetric B Factory with the BABAR detector. With a sample of approximately 2500 reconstructed eta(c)-->K(0)(S)K+/-pi(-/+) decays in 88 fb(-1) of data, the results are m(eta(c))=2982.5+/-1.1(stat)+/-0.9(syst) MeV/c(2) and Gamma(eta(c))(tot)=34.3+/-2.3(stat)+/-0.9(syst) MeV/c(2). Using the same decay mode, a second resonance with 112+/-24 events is observed with a mass of 3630.8+/-3.4(stat)+/-1.0(syst) MeV/c(2) and width of 17.0+/-8.3(stat)+/-2.5(syst) MeV/c(2). This observation is consistent with expectations for the eta(c)(2S) state.
Year of Publication	: 2004
Journal	: Physical review letters
Volume	: 92
Issue	: 14
Number of Pages	: 142002
Date Published	: 2004
ISSN Number	: 0031-9007
URL	: http://link.aps.org/abstract/PRL/v92/p142002
Short Title	: Phys Rev Lett
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