Search for Invisible Decays of the UPSILON(1S)

Journal Article · Fri Dec 18 00:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.251801· OSTI ID:21370907

Aubert, B; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Tico, J Garra; Grauges, E ^[2]; Martinelli, M; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Battaglia, M; Brown, D N; Hooberman, B; Kerth, L T; Kolomensky, Yu G ^[5]

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1. Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Universite de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. INFN Sezione di Bari, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

We search for invisible decays of the UPSILON(1S) meson using a sample of 91.4x10{sup 6} UPSILON(3S) mesons collected at the BABAR/PEP-II B factory. We select events containing the decay UPSILON(3S)->pi{sup +}pi{sup -}UPSILON(1S) and search for evidence of an undetectable UPSILON(1S) decay recoiling against the dipion system. We set an upper limit on the branching fraction B(UPSILON(1S)->invisible)<3.0x10{sup -4} at the 90% confidence level.

• OSTI ID: 21370907
• Journal Information: Physical Review Letters, Vol. 103, Issue 25; Other Information: DOI: 10.1103/PhysRevLett.103.251801; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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