Observation of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) and pi(+)pi(-)Upsilon(2S) RID A-8798-2012 RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 RID A-2675-2009

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doi:10.1103/PhysRevLett.96.232001

We present the first measurement of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) and pi(+)pi(-)Upsilon(2S) based on a sample of 230x10(6)Upsilon(4S) mesons collected with the BABAR detector. We measure the product branching fractions B(Upsilon(4S)->pi(+)pi(-)Upsilon(1S))xB(Upsilon(1S)->mu(+)mu(-))=(2.23 +/- 0.25(stat)+/- 0.27(syst))x10(-6) and B(Upsilon(4S)->pi(+)pi(-)Upsilon(2S))xB(Upsilon(2S)->mu(+)mu(-))=(1.69 +/- 0.26(stat)+/- 0.20(syst))x10(-6), from which we derive the partial widths Gamma(Upsilon(4S)->pi(+)pi(-)Upsilon(1S))=(1.8 +/- 0.4) keV and Gamma(Upsilon(4S)->pi(+)pi(-)Upsilon(2S))=(2.7 +/- 0.8) keV.

Titolo:	Observation of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) and pi(+)pi(-)Upsilon(2S) RID A-8798-2012 RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 RID A-2675-2009
Autori:	Aubert B Barate R Bona M Boutigny D Couderc F Karyotakis Y Lees JP Poireau V Tisserand V Zghiche A Grauges E Palano A Chen JC Qi ND Rong G Wang P Zhu YS Eigen G Ofte I Stugu B Abrams GS Battaglia M Brown DN Button Shafer J Cahn RN Charles E Gill MS Groysman Y Jacobsen RG Kadyk JA Kerth LT Kolomensky YG Kukartsev G Lynch G Mir LM Oddone PJ Orimoto TJ Pripstein M Roe NA Ronan MT Wenzel WA Barrett M Ford KE Harrison TJ Hart AJ Hawkes CM Morgan SE Watson AT Goetzen K Held T Koch H Lewandowski B Pelizaeus M Peters K Schroeder T Steinke M Boyd JT Burke JP Cottingham WN Walker D Cuhadar Donszelmann T Fulsom BG Hearty C Knecht NS Mattison TS McKenna JA Khan A Kyberd P Saleem M Teodorescu L Blinov VE Bukin AD Druzhinin VP Golubev VB Onuchin AP Serednyakov SI Skovpen YI Solodov EP Todyshev KY Best DS Bondioli M Bruinsma M Chao M Curry S Eschrich I Kirkby D Lankford AJ Lund P Mandelkern M Mommsen RK Roethel W Stoker DP Abachi S Buchanan C Foulkes SD Gary JW Long O Shen BC Wang K Zhang L Hadavand HK Hill EJ Paar HP Rahatlou S Sharma V Berryhill JW Campagnari C Cunha A Dahmes B Hong TM Kovalskyi D Richman JD Beck TW Eisner AM Flacco CJ Heusch CA Kroseberg J Lockman WS Nesom G Schalk T Schumm BA Seiden A Spradlin P Williams DC Wilson MG Albert J Chen E Dvoretskii A Hitlin DG Narsky I Piatenko T Porter FC Ryd A Samuel A Andreassen R Mancinelli G Meadows BT Sokoloff MD Blanc F Bloom PC Chen S Ford WT Hirschauer JF Kreisel A Nauenberg U Olivas A Ruddick WO Smith JG Ulmer KA Wagner SR Zhang J Chen A Eckhart EA Soffer A Toki WH Wilson RJ Winklmeier F Zeng Q Altenburg DD Feltresi E Hauke A Jasper H Spaan B Brandt T Klose V Lacker HM Mader WF Nogowski R Petzold A Schubert J Schubert KR Schwierz R Sundermann JE Volk A Bernard D Bonneaud GR Grenier P Latour E Thiebaux C Verderi M Bard DJ Clark PJ Gradl W Muheim F Playfer S Robertson AI Xie Y Andreotti M Bettoni D Bozzi C Calabrese R Cibinetto G Luppi E Negrini M Petrella A Piemontese L Prencipe E Anulli F Baldini Ferroli R Calcaterra A de Sangro R Finocchiaro G Pacetti S Patteri P Peruzzi IM Piccolo M Rama M Zallo A Buzzo A Capra R Contri R Lo Vetere M Macri MM Monge MR Passaggio S Patrignani C Robutti E Santroni A Tosi S Brandenburg G Chaisanguanthum KS Morii M Wu J Dubitzky RS Marks J Schenk S Uwer U Bhimji W Bowerman DA Dauncey PD Egede U Flack RL Gaillard JR Nash JA Nikolich MB Vazquez WP Chai X Charles MJ Mallik U Meyer NT Ziegler V Cochran J Crawley HB Dong L Eyges V Meyer WT Prell S Rosenberg EI Rubin AE Gritsan AV Fritsch M Schott G Arnaud N Davier M Grosdidier G Hocker A Le Diberder F Lepeltier V Lutz AM Oyanguren A Pruvot S Rodier S Roudeau P Schune MH Stocchi A Wang WF Wormser G Cheng CH Lange DJ Wright DM Chavez CA Forster IJ Fry JR Gabathuler E Gamet R George KA Hutchcroft DE Payne DJ Schofield KC Touramanis C Bevan AJ Di Lodovico F Menges W Sacco R Brown CL Cowan G Flaecher HU Hopkins DA Jackson PS McMahon TR Ricciardi S Salvatore F Brown DN Davis CL Allison J Barlow NR Barlow RJ Chia YM Edgar CL Kelly MP Lafferty GD Naisbit MT Williams JC Yi JI Chen C Hulsbergen WD Jawahery A Lae CK Roberts DA Simi G Blaylock G Dallapiccola C Hertzbach SS Li X Moore TB Saremi S Staengle H Willocq SY Cowan R Koeneke K Sciolla G Sekula SJ Spitznagel M Taylor F Yamamoto RK Kim H Patel PM Robertson SH Lazzaro A Lombardo V Palombo F Bauer JM Cremaldi L Eschenburg V Godang R Kroeger R Reidy J Sanders DA Summers DJ Zhao HW Brunet S Cote D Taras P Viaud FB Nicholson H Cavallo N De Nardo G del Re D Fabozzi F Gatto C Lista L Monorchio D Paolucci P Piccolo D Sciacca C Baak M Bulten H Raven G Snoek HL Jessop CP LoSecco JM Allmendinger T Benelli G Gan KK Honscheid K Hufnagel D Jackson PD Kagan H Kass R Pulliam T Rahimi AM Ter Antonyan R Wong QK Blount NL Brau J Frey R Igonkina O Lu M Potter CT Rahmat R Sinev NB Strom D Strube J Torrence E Galeazzi F Gaz A Margoni M Morandin M Pompili A Posocco M Rotondo M Simonetto F Stroili R Voci C Benayoun M Chauveau J David P Del Buono L de la Vaissiere C Hamon O Hartfiel BL John MJJ Malcles J Ocariz J Roos L Therin G Behera PK Gladney L Panetta J Biasini M Covarelli R Pioppi M Angelini C Batignani G Bettarini S Bucci F Calderini G Carpinelli M Cenci R Forti F Giorgi MA LUSIANI, Alberto Marchiori G Mazur MA Morganti M Neri N Rizzo G Walsh J Haire M Judd D Wagoner DE Biesiada J Danielson N Elmer P Lau YP Lu C Olsen J Smith AJS Telnov AV Bellini F Cavoto G D'Orazio A Di Marco E Faccini R Ferrarotto F Ferroni F Gaspero M Li Gioi L Mazzoni MA Morganti S Piredda G Polci F Tehrani FS Voena C Ebert M Schroder H Waldi R Adye T De Groot N Franek B Olaiya EO Wilson FF Emery S Gaidot A Ganzhur SF de Monchenault GH Kozanecki W Legendre M Vasseur G Yeche C Zito M Park W Purohit MV Wilson JR Allen MT Aston D Bartoldus R Bechtle P Berger N Boyarski AM Claus R Coleman JP Convery MR Cristinziani M Dingfelder JC Dong D Dorfan J Dubois Felsmann GP Dujmic D Dunwoodie W Field RC Glanzman T Gowdy SJ Graham MT Halyo V Hast C Hryn'ova T Innes WR Kelsey MH Kim P Kocian ML Leith DWGS Li S Libby J Luitz S Luth V Lynch HL MacFarlane DB Marsiske H Messner R Muller DR O'Grady CP Ozcan VE Perl M Perazzo A Ratcliff BN Roodman A Salnikov AA Schindler RH Schwiening J Snyder A Stelzer J Su D Sullivan MK Suzuki K Swain SK Thompson JM Va'vra J Van Bakel N Weaver M Weinstein AJR Wisniewski WJ Wittgen M Wright DH Yarritu AK Yi K Young CC Burchat PR Edwards AJ Majewski SA Petersen BA Roat C Wilden L Ahmed S Alam MS Bula R Ernst JA Jain V Pan B Saeed MA Wappler FR Zain SB Bugg W Krishnamurthy M Spanier SM Eckmann R Ritchie JL Satpathy A Schilling CJ Schwitters RF Izen JM Kitayama I Lou XC Ye S Bianchi F Gallo F Gamba D Bomben M Bosisio L Cartaro C Cossutti F Della Ricca G Dittongo S Grancagnolo S Lanceri L Vitale L Azzolini V Martinez Vidal F Banerjee S Bhuyan B Brown CM Fortin D Hamano K Kowalewski R Nugent IM Roney JM Sobie RJ Back JJ Harrison PF Latham TE Mohanty GB Pappagallo M Band HR Chen X Cheng B Dasu S Datta M Eichenbaum AM Flood KT Hollar JJ Kutter PE Li H Liu R Mellado B Mihalyi A Mohapatra AK Pan Y Pierini M Prepost R Tan P Wu SL Yu Z Neal H. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2006
Rivista:	PHYSICAL REVIEW LETTERS
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevLett.96.232001
Appare nelle tipologie:	1.1 Articolo in rivista

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