A Search for Invisible Decays of the Upsilon(1S)

The BaBar Collaboration; Philip Clark

doi:10.1103/PhysRevLett.103.251801

A Search for Invisible Decays of the Upsilon(1S)

The BaBar Collaboration, Philip Clark

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10^{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 BR(Upsilon(1S) -> invisible)

Original language	English
Journal	Physical Review Letters
DOIs	https://doi.org/10.1103/PhysRevLett.103.251801
Publication status	Published - 20 Aug 2009

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hep-ex

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10.1103/PhysRevLett.103.251801

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title = "A Search for Invisible Decays of the Upsilon(1S)",

abstract = "We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10^{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 BR(Upsilon(1S) -> invisible)",

keywords = "hep-ex",

author = "B. Aubert and Stephen Playfer and {The BaBar Collaboration} and Philip Clark",

note = "7 pages, 3 postscript figures, submitted to Physical Review Letters",

year = "2009",

month = aug,

day = "20",

doi = "10.1103/PhysRevLett.103.251801",

language = "English",

journal = "Physical Review Letters",

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T1 - A Search for Invisible Decays of the Upsilon(1S)

AU - Aubert, B.

AU - Playfer, Stephen

AU - The BaBar Collaboration

AU - Clark, Philip

N1 - 7 pages, 3 postscript figures, submitted to Physical Review Letters

PY - 2009/8/20

Y1 - 2009/8/20

N2 - We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10^{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 BR(Upsilon(1S) -> invisible)

AB - We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10^{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 BR(Upsilon(1S) -> invisible)

KW - hep-ex

UR - http://www.scopus.com/inward/record.url?scp=72649102962&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.103.251801

DO - 10.1103/PhysRevLett.103.251801

M3 - Article

SN - 1079-7114

JO - Physical Review Letters

JF - Physical Review Letters

ER -

A Search for Invisible Decays of the Upsilon(1S)

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