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Measurement of double charmonium production in e(+)e(-) annihilations at root s=10.6 GeV

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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

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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
Journal or Publication Title: PHYSICAL REVIEW D
Publisher: AMERICAN PHYSICAL SOC
ISSN: 1550-7998
Official Date: August 2005
Dates:
DateEvent
August 2005UNSPECIFIED
Volume: 72
Number: 3
Number of Pages: 7
Page Range: -
DOI: 10.1103/PhysRevD.72.031101
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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