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Observation of a charmed baryon decaying to D(0)p at a mass near 2.94 GeV/c(2)
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BaBar Collaboration (Including: Back, J. J., Harrison, P. F., Latham, Thomas and Mohanty, G. B.). (2007) Observation of a charmed baryon decaying to D(0)p at a mass near 2.94 GeV/c(2). Physical Review Letters, Vol.98 (No.1). doi:10.1103/PhysRevLett.98.012001 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.98.012001
Abstract
A search for charmed baryons decaying to D(0)p reveals two states: the Lambda(c)(2880)(+) baryon and a previously unobserved state at a mass of [2939.8 +/- 1.3(stat)+/- 1.0(syst)] MeV/c(2) and with an intrinsic width of [17.5 +/- 5.2(stat)+/- 5.9(syst)] MeV. Consistent and significant signals are observed for the K-pi(+) and K-pi(+)pi(-)pi(+) decay modes of the D-0 in 287 fb(-1) annihilation data recorded by the BABAR detector at a center-of-mass energy of 10.58 GeV. There is no evidence in the D(+)p spectrum of doubly charged partners. The mass and intrinsic width of the Lambda(c)(2880)(+) baryon and relative yield of the two baryons are also measured.
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: | 5 January 2007 | ||||
Dates: |
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Volume: | Vol.98 | ||||
Number: | No.1 | ||||
Number of Pages: | 7 | ||||
DOI: | 10.1103/PhysRevLett.98.012001 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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