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Measurement of double charmonium production in e(+)e(-) annihilations at root s=10.6 GeV
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BABAR Collaboration (Including: UNSPECIFIED). (2005) Measurement of double charmonium production in e(+)e(-) annihilations at root s=10.6 GeV. PHYSICAL REVIEW D, 72 (3). -. doi:10.1103/PhysRevD.72.031101
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Official URL: http://dx.doi.org/10.1103/PhysRevD.72,031101
Abstract
We study e(+)e(-)-> J/psi c ($) over bar by measuring the invariant mass distribution recoiling against fully reconstructed J/psi decays, using 124 fb(-1) of data collected at a center-of-mass energy of 10.6 GeV with the BABAR detector. We observe signals for eta(c)(1S), chi(c0), and eta(c)(2S) in the recoil mass distribution, thus confirming previous measurements. We measure sigma(e(+)e(-)-> J/psi+c (c) over bar )B(c (c) over bar ->> 2 charged) to be 17.6 +/- 2.8(stat)(-2.1)(+1.5)(syst) fb, 10.3 +/- 2.5(stat)(-1.8)(+1.4)(syst) fb, and 16.4 +/- 3.7(stat)(-3.0)(+2.4)(syst) fb with c (c) over bar=eta(c)(1S), chi(c0), and eta(c)(2S), respectively.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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| Journal or Publication Title: | PHYSICAL REVIEW D | ||||
| Publisher: | AMERICAN PHYSICAL SOC | ||||
| ISSN: | 1550-7998 | ||||
| Official Date: | August 2005 | ||||
| Dates: |
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| Volume: | 72 | ||||
| Number: | 3 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | - | ||||
| DOI: | 10.1103/PhysRevD.72.031101 | ||||
| Publication Status: | Published |
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