DSpace

Digital.CSIC > Ciencia y Tecnologías Físicas > Instituto de Física Corpuscular (IFIC) > (IFIC) Artículos >

Share

EndNote

Impact

Open Access item Search for Invisible Decays of the Upsilon(1S)

Authors:Babar Collaboration
Azzolini, Virginia
López-March, Neus
Martínez-Vidal, Fernando
Milanés, Diego A.
Oyanguren, Arantza
Aubert, B.
Issue Date:18-Dec-2009
Publisher:American Physical Society
Citation:Physical Review Letters 103 (25): 251801 (2009)
Abstract:We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4x10(6) Upsilon(3S) mesons collected at the BABAR/PEP-II B factory. We select events containing the decay Upsilon(3S)->pi(+)pi(-)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(-4) at the 90% confidence level.
Publisher version (URL):http://dx.doi.org/ 10.1103/PhysRevLett.103.251801
URI:http://hdl.handle.net/10261/22019
ISSN:0031-9007
???metadata.dc.identifier.doi???:10.1103/PhysRevLett.103.251801
Appears in Collections:(IFIC) Artículos

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.