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Evidence of a broad structure at an invariant mass of 4.32 GeV/c2 in the reaction e+e-→π+π-ψ(2S) measured at BABAR
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Babar Collaboration (Including:
). (2007) Evidence of a broad structure at an invariant mass of 4.32 GeV/c2 in the reaction e+e-→π+π-ψ(2S) measured at BABAR. Physical Review Letters, Vol.98 (No.21). Article: 212001. doi:10.1103/PhysRevLett.98.212001 ISSN 0031-9007.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.98.212001
Abstract
We present a measurement of the cross section of the process e(+)e(-)->pi(+)pi(-)psi(2S) from threshold up to 8 GeV center-of-mass energy using events containing initial-state radiation, produced at the SLAC PEP-II e(+)e(-) storage rings. The study is based on 298 fb(-1) of data recorded with the BABAR detector. A structure is observed in the cross section not far above threshold, near 4.32 GeV. We also investigate the compatibility of this structure with the Y(4260) previously reported by this experiment.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 25 May 2007 | ||||
Dates: |
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Volume: | Vol.98 | ||||
Number: | No.21 | ||||
Number of Pages: | 7 | ||||
Page Range: | Article: 212001 | ||||
DOI: | 10.1103/PhysRevLett.98.212001 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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