Search for a low-mass higgs boson in Upsilon(3S)-->gammaA(0), A(0)-->tau(+)tau(-) at BABAR

We search for a light Higgs boson A0 in the radiative decay Upsilon(3S)-->gammaA(0), A(0)-->tau+tau-, tau+-->e+nu(e)nu(tau), or tau+-->mu+nu(mu)nu(tau). The data sample contains 122x10(6) Upsilon(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in t...

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Veröffentlicht in:	Physical review letters 2009-10, Vol.103 (18), p.181801-181801
Hauptverfasser:	Aubert, B, Karyotakis, Y, Lees, J P, Poireau, V, Prencipe, E, Prudent, X, Tisserand, V, Tico, J Garra, Grauges, E, Martinelli, M, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Battaglia, M, Brown, D N, Kerth, L T, Kolomensky, Yu G, Lynch, G, Osipenkov, I L, Tackmann, K, Tanabe, T, Hawkes, C M, Soni, N, Watson, A T, Koch, H, Schroeder, T, Asgeirsson, D J, Fulsom, B G, Hearty, C, Mattison, T S, McKenna, J A, Barrett, M, Khan, A, Randle-Conde, A, Blinov, V E, Bukin, A D, Buzykaev, A R, Druzhinin, V P, Golubev, V B, Onuchin, A P, Serednyakov, S I, Skovpen, Yu I, Solodov, E P, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, A J, Lund, P, Mandelkern, M, Martin, E C, Stoker, D P, Atmacan, H, Gary, J W, Liu, F, Long, O, Vitug, G M, Yasin, Z, Sharma, V, Campagnari, C, Hong, T M, Kovalskyi, D, Mazur, M A, Richman, J D, Beck, T W, Eisner, A M, Heusch, C A, Kroseberg, J, Lockman, W S, Martinez, A J, Schalk, T, Schumm, B A, Seiden, A, Wang, L, Winstrom, L O, Cheng, C H, Doll, D A, Echenard, B, Fang, F, Hitlin, D G, Narsky, I, Ongmongkolkul, P, Piatenko, T, Porter, F C, Andreassen, R, Mancinelli, G, Meadows, B T, Mishra, K, Sokoloff, M D, Bloom, P C, Ford, W T, Gaz, A, Hirschauer, J F, Nagel, M, Nauenberg, U, Smith, J G, Wagner, S R
Format:	Artikel
Sprache:	eng
Schlagworte:	ANTILEPTONS ANTIMATTER ANTIPARTICLES BOSONS BRANCHING RATIO DECAY DIMENSIONLESS NUMBERS ELECTRON NEUTRINOS ELEMENTARY PARTICLES ENERGY RANGE FERMIONS GEV RANGE GEV RANGE 10-100 HEAVY LEPTONS HIGGS BOSONS LEPTONS MASS MASSLESS PARTICLES MATTER MUON NEUTRINOS MUONS MUONS PLUS NEUTRINOS PARTICLE DECAY PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSITRONS POSTULATED PARTICLES RADIATIVE DECAY TAU NEUTRINOS TAU PARTICLES
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Zusammenfassung:	We search for a light Higgs boson A0 in the radiative decay Upsilon(3S)-->gammaA(0), A(0)-->tau+tau-, tau+-->e+nu(e)nu(tau), or tau+-->mu+nu(mu)nu(tau). The data sample contains 122x10(6) Upsilon(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in the studied tau+tau- invariant mass region of 4.03tau+tau-)>(1.5-16)x10(-5) across the m(tau+tau-) range. We also set a 90% C.L. upper limit on the tau+tau- decay of the eta(b) at B(eta(b)-->tau+tau-)
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PHYSREVLETT.103.181801