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2009-12-16

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/150580

Search for Invisible Decays of the Υ(1S)

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https://doi.org/10.1103/PhysRevLett.103.251801

Abstract

We search for invisible decays of the Υ ( 1 S ) meson using a sample of 91.4 × 10 6 Υ ( 3 S ) mesons collected at the BABAR/PEP-II B factory. We select events containing the decay Υ ( 3 S ) → π + π − Υ ( 1 S ) and search for evidence of an undetectable Υ ( 1 S ) decay recoiling against the dipion system. We set an upper limit on the branching fraction B ( Υ ( 1 S ) → invisible ) < 3.0 × 10 − 4 at the 90% confidence level.

Subject

Física de partícules, Experiments

Subject (English)

Particle physics, Experiments

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Search for Invisible Decays of the Υ(1S). Physical Review Letters. 2009. Vol. 103, num. 25, pags. 251801. ISSN 0031-9007. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/150580

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