Search for production of invisible final states in single-photon decays of Upsilon(1S).

We search for single-photon decays of the Upsilon(1S) resonance Upsilon gamma + invisible where the invisible state is either a particle of definite mass such as a light Higgs boson A⁰ or a pair of dark matter particles chichi. Both A⁰ and chi are assumed to have zero spin. We tag Upsilon(1S) decays with a dipion transition Upsilon(2S) pi⁺pi⁻Upsilon(1S) and look for events with a single energetic photon and significant missing energy. We find no evidence for such processes in the mass range m(A⁰) ≤ 9.2 GeV and m(chi) ≤ 4.5 GeV in the sample of 98 * 10⁶ Upsilon(2S) decays collected with the BABAR detector and set stringent limits on new physics models that contain light dark matter states.

Data di pubblicazione: 2011
Titolo: Search for production of invisible final states in single-photon decays of Upsilon(1S).
Autori: Del Amo Sanchez P; Lees J P; Poireau V; Prencipe E; Tisserand V; Garra Tico J; Grauges E; Martinelli M; Milanes D A; Palano A; Pappagallo M; Eigen G; Stugu B; Sun L; Brown D N; Chistiakova M V; Jensen F; Kerth L T; Kolomensky Yu G; Lynch G; Osipenkov I L; Koch H; Schroeder T; Asgeirsson D J; Hearty C; Mattison T S; McKenna J A; Khan A; Randle-Conde A; Blinov V E; Buzykaev A R; Druzhinin V P; Golubev V B; Kravchenko E A; Onuchin A P; Serednyakov S I; Skovpen Yu I; Solodov E P; Todyshev K Yu; Yushkov A N; Bondioli M; Curry S; Kirkby D; Lankford A J; Mandelkern M; Martin E C; Stoker D P; Atmacan H; Gary J W; Liu F; Long O; Vitug G M; Campagnari C; Hong T M; Kovalskyi D; Richman J D; West C; Eisner A M; Heusch C A; Kroseberg J; Lockman W S; Martinez A J; Schalk T; Schumm B A; Seiden A; Winstrom L O; Cheng C H; Doll D A; Echenard B; Hitlin D G; Ongmongkolkul P; Porter F C; Rakitin A Y; Andreassen R; Dubrovin M S; Mancinelli G; Meadows B T; Sokoloff M D; Bloom P C; Ford W T; Gaz A; Nagel M; Nauenberg U; Smith J G; Wagner S R; Ayad R; Toki W H; Jasper H; Karbach T M; Petzold A; Spaan B; Kobel M J; Schubert K R; Schwierz R; Bernard D; Verderi M; Clark P J; Playfer S; Watson J E; Andreotti M; Bettoni D; Bozzi C; Calabrese R; Cecchi A; Cibinetto G; Fioravanti E; Franchini P; Garzia I; Luppi E; Munerato M; Negrini M; Petrella A; Piemontese L; Baldini-Ferroli R; Calcaterra A; de Sangro R; Finocchiaro G; Nicolaci M; Pacetti S; Patteri P; Peruzzi I M; Piccolo M; Rama M; Zallo A; Contri R; Guido E; Lo Vetere M; Monge M R; Passaggio S; Patrignani C; Robutti E; Tosi S; Bhuyan B; Prasad V; Lee C L; Morii M; Adametz A; Marks J; Uwer U; Bernlochner F U; Ebert M; Lacker H M; Lueck T; Volk A; Dauncey P D; Tibbetts M; Behera P K; Mallik U; Chen C; Cochran J; Crawley H B; Dong L; Meyer W T; Prell S; Rosenberg E I; Rubin A E; Gritsan A V; Guo Z J; Arnaud N; Davier M; Derkach D; Firmino da Costa J; Grosdidier G; Le Diberder F; Lutz A M; Malaescu B; Perez A; Roudeau P; Schune M H; Serrano J; Sordini V; Stocchi A; Wang L; Wormser G; Lange D J; Wright D M; Bingham I; Chavez C A; Coleman J P; Fry J R; Gabathuler E; Gamet R; Hutchcroft D E; Payne D J; Touramanis C; Bevan A J; Di Lodovico F; Sacco R; Sigamani M; Cowan G; Paramesvaran S; Wren A C; Brown D N; Davis C L; Denig A G; Fritsch M; Gradl W; Hafner A; Alwyn K E; Bailey D; Barlow R J; Jackson G; Lafferty G D; Anderson J; Cenci R; Jawahery A; Roberts D A; Simi G; Tuggle J M; Dallapiccola C; Salvati E; Cowan R; Dujmic D; Sciolla G; Zhao M; Lindemann D; Patel P M; Robertson S H; Schram M; Biassoni P; Lazzaro A; Lombardo V; Palombo F; Stracka S; Cremaldi L; Godang R; Kroeger R; Sonnek P; Summers D J; Nguyen X; Simard M; Taras P; De Nardo G; Monorchio D; Onorato G; Sciacca C; Raven G; Snoek H L; Jessop C P; Knoepfel K J; LoSecco J M; Wang W F; Corwin L A; Honscheid K; Kass R; Morris J P; Blount N L; Brau J; Frey R; Igonkina O; Kolb J A; Rahmat R; Sinev N B; Strom D; Strube J; Torrence E; Castelli G; Feltresi E; Gagliardi N; Margoni M; Morandin M; Posocco M; Rotondo M; Simonetto F; Stroili R; Ben-Haim E; Bonneaud G R; Briand H; Calderini G; Chauveau J; Hamon O; Leruste Ph; Marchiori G; Ocariz J; Prendki J; Sitt S; Biasini M; Manoni E; Rossi A; Angelini C; Batignani G; Bettarini S; Carpinelli M; Casarosa G; Cervelli A; Forti F; Giorgi M A; Lusiani A; Neri N; Paoloni E; Rizzo G; Walsh J J; Lopes Pegna D; Lu C; Olsen J; Smith A J S; Telnov A V; Anulli F; Baracchini E; Cavoto G; Faccini R; Ferrarotto F; Ferroni F; Gaspero M; Li Gioi L; Mazzoni M A; Piredda G; Renga F; Hartmann T; Leddig T; Schroder H; Waldi R; Adye T; Franek B; Olaiya E O; Wilson F F; Emery S; Hamel de Monchenault G; Vasseur G; Yeche Ch; Zito M; Allen M T; Aston D; Bard D J; Bartoldus R; Benitez J F; Cartaro C; Convery M R; Dorfan J; Dubois-Felsmann G P; Dunwoodie W; Field R C; Franco Sevilla M; Fulsom B G; Gabareen A M; Graham M T; Grenier P; Hast C; Innes W R; Kelsey M H; Kim H; Kim P; Kocian M L; Leith D W G S; Li S; Lindquist B; Luitz S; Luth V; Lynch H L; MacFarlane D B; Marsiske H; Muller D R; Neal H; Nelson S; O'Grady C P; Ofte I; Perl M; Pulliam T; Ratcliff B N; Roodman A; Salnikov A A; Santoro V; Schindler R H; Schwiening J; Snyder A; Su D; Sullivan M K; Sun S; Suzuki K; Thompson J M; Va'vra J; Wagner A P; Weaver M; Wisniewski W J; Wittgen M; Wright D H; Wulsin H W; Yarritu A K; Young C C; Ziegler V; Chen X R; Park W; Purohit M V; White R M; Wilson J R; Sekula S J; Bellis M; Burchat P R; Edwards A J; Miyashita T S; Ahmed S; Alam M S; Ernst J A; Pan B; Saeed M A; Zain S B; Guttman N; Soffer A; Lund P; Spanier S M; Eckmann R; Ritchie J L; Ruland A M; Schilling C J; Schwitters R F; Wray B C; Izen J M; Lou X C; Bianchi F; Gamba D; Pelliccioni M; Bomben M; Lanceri L; Vitale L; Lopez-March N; Martinez-Vidal F; Oyanguren A; Albert J; Banerjee Sw; Choi H H F; Hamano K; King G J; Kowalewski R; Lewczuk M J; Lindsay C; Nugent I M; Roney J M; Sobie R J; Gershon T J; Harrison P F; Latham T E; Puccio E M T; Band H R; Dasu S; Flood K T; Pan Y; Prepost R; Vuosalo C O; Wu S L
Rivista: PHYSICAL REVIEW LETTERS
Parole Chiave: single-photon decays of Upsilon(1S)
Abstract: We search for single-photon decays of the Upsilon(1S) resonance Upsilon gamma + invisible where the invisible state is either a particle of definite mass such as a light Higgs boson A⁰ or a pair of dark matter particles chichi. Both A⁰ and chi are assumed to have zero spin. We tag Upsilon(1S) decays with a dipion transition Upsilon(2S) pi⁺pi⁻Upsilon(1S) and look for events with a single energetic photon and significant missing energy. We find no evidence for such processes in the mass range m(A⁰) ≤ 9.2 GeV and m(chi) ≤ 4.5 GeV in the sample of 98 * 10⁶ Upsilon(2S) decays collected with the BABAR detector and set stringent limits on new physics models that contain light dark matter states.
Digital Object Identifier (DOI): 10.1103/PhysRevLett.107.021804
Handle: http://hdl.handle.net/11392/1548410
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