Search for a light Higgs resonance in radiative decays of the Y(1S) with a charm tag

J P Lees,V Poireau,V Tisserand,E Grauges,A Palano,G Eigen, B Stugu,D N Brown,L T Kerth,Yu G Kolomensky,M J Lee,G Lynch, H Koch,T Schroeder, C Hearty,T S Mattison, J A Mckenna,R Y So, A Khan,V E Blinov,A R Buzykaev,V P Druzhinin,V B Golubev,E A Kravchenko,A P Onuchin,S I Serednyakov,Yu I Skovpen,E P Solodov,K Yu Todyshev,A J Lankford,Bimalangshu R Dey,J W Gary,O Long,M Franco Sevilla, T M Hong, D Kovalskyi, J D Richman,C A West,A M Eisner, W S Lockman,W Panduro Vazquez, B A Schumm, A Seiden, D S Chao, C H Cheng, B Echenard,K T Flood,D G Hitlin,T S Miyashita,P Ongmongkolkul, F C Porter, M Rohrken,R Andreassen, Z Huard,B T Meadows,B G Pushpawela, M D Sokoloff, L Sun,P C Bloom, W T Ford,A Gaz,J G Smith, S R Wagner,R Ayad,W H Toki,B Spaan, D Bernard,M Verderi,S Playfer,D Bettoni, C Bozzi,R Calabrese,G Cibinetto,E Fioravanti, I Garzia,E Luppi,L Piemontese,V Santoro,A Calcaterra,R De Sangro,G Finocchiaro,S Martellotti,P Patteri,I M Peruzzi,M Piccolo,M Rama, A Zallo,R Contri,M R Monge, S Passaggio, C Patrignani,B Bhuyan,Vinod K Prasad,A Adametz,U Uwer, H M Lacker,U Mallik,C Chen, J Cochran,S Prell,H Ahmed, A V Gritsan,N Arnaud, M Davier,D Derkach,G Grosdidier,F Le Diberder,A M Lutz, B Malaescu,P Roudeau, A Stocchi,G Wormser,D J Lange,D M Wright, J P Coleman,J R Fry, E Gabathuler,D E Hutchcroft,D J Payne, C Touramanis, A J Bevan,F Di Lodovico,R Sacco,Glen Cowan, C L Davis, A G Denig,M Fritsch,W Gradl, K Griessinger,A Hafner,K R Schubert, R J Barlow,G D Lafferty,R Cenci,B Hamilton, A Jawahery,D A Roberts, R Cheaib,P M Patel,S H Robertson, N Neri,F Palombo, L Cremaldi,R Godang, D J Summers,M Simard,P Taras,G De Nardo,G Onorato,C Sciacca,G Raven, C P Jessop,J M Losecco,K Honscheid, R Kass, M Margoni,M Morandin,M Posocco,Michael F Rotondo,G Simi, F Simonetto,R Stroili,S Akar,E Benhaim,M Bomben,G R Bonneaud,H Briand, G Calderini,J Chauveau,Ph Leruste, G Marchiori, J Ocariz, M Biasini,E Manoni, A M Rossi,C Angelini,G Batignani,S Bettarini,M Carpinelli,G Casarosa, M Chrzaszcz, F Forti,M A Giorgi,A Lusiani, B Oberhof,E Paoloni,G Rizzo, J Walsh,D Lopes Pegna,John C Olsen,A J S Smith, F Anulli,R Faccini,F Ferrarotto,F Ferroni,M Gaspero,A Pilloni,G Piredda, C Bunger, S Dittrich, O Grunberg,M Hess,T Leddig,C Vos,R Waldi, T Adye, E O Olaiya, F F Wilson,S Emery, G Vasseur,D Aston,D J Bard,C Cartaro,M R Convery, J Dorfan,G P Duboisfelsmann,W Dunwoodie,M Ebert,R C Field,B G Fulsom,M T Graham, C Hast,W R Innes, P Kim, D W G S Leith,D Lindemann,S Luitz, V Luth,H L Lynch,D B Macfarlane,D R Muller, H A Neal,M Perl,T Pulliam,B N Ratcliff, A Roodman, R H Schindler,A Snyder, D Su,M K Sullivan, J Va Vra,W J Wisniewski,H W Wulsin, M V Purohit, J R Wilson, A Randleconde, S J Sekula,M Bellis,P R Burchat,E M T Puccio,M S Alam,J Ernst, R Gorodeisky, N Guttman, D R Peimer, A Soffer,S M Spanier,J L Ritchie,R F Schwitters,J M Izen,X C Lou,F Bianchi,F De Mori,A Filippi,D Gamba,L Lanceri,L Vitale,F Martinezvidal,A Oyanguren, P Villanuevaperez, J Albert,Sw Banerjee,A Beaulieu,F U Bernlochner,H H F Choi,G J King, R Kowalewski,M J Lewczuk,T Lueck, I M Nugent, J M Roney, R Sobie,N Tasneem, T Gershon, P F Harrison,T E Latham, H R Band, S Dasu, Y Pan,R Prepost,S L Wu,R Cowan

PHYSICAL REVIEW D（2015）

引用 17|浏览454

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摘要

A search is presented for the decay Upsilon(1S) -> gamma A(0), A(0) -> c (c) over barc, where A(0) is a candidate for the CP-odd Higgs boson of the next-to-minimal supersymmetric standard model. The search is based on data collected with the BABAR detector at the Upsilon(2S) resonance. A sample of Upsilon(1S) mesons is selected via the decay Upsilon(2S) -> pi(+)pi(-)Upsilon(1S) . The A(0) -> c (c) over bar decay is identified through the reconstruction of hadronic D-0, D+,and D-0 (2010)(+) meson decays. No significant signal is observed. The measured 90% confidence-level upper limits on the product branching fraction beta(Upsilon(1S) -> gamma A(0)) x beta(A(0) -> (c) over barc range from 7.4 x 10(-5) to 2.4 x 10(-3) for A(0) masses from 4.00 to 8.95 GeV/c(2) and 9.10 to 9.25 GeV/c(2), where the region between 8.95 and 9.10 GeV/c(2) is excluded because of background from Upsilon(2S) -> gamma chi(bJ)(1P), chi(bJ)(1P) -> gamma Upsilon(1S) decays.

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关键词

supersymmetry,neutral particle,higgs particle,branching ratio,background

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