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Study of e(+)e(-)->Lambda(Lambda)over-bar, Lambda(Sigma)over-bar(0), Sigma(0)(Sigma)over-bar(0) using initial state radiation with BABAR
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(2007) Study of e(+)e(-)->Lambda(Lambda)over-bar, Lambda(Sigma)over-bar(0), Sigma(0)(Sigma)over-bar(0) using initial state radiation with BABAR. PHYSICAL REVIEW D, 76 (9). -. doi:10.1103/PhysRevD.76.092006 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.76.092006
Abstract
We study the e(+)e(-)->Lambda(Lambda) over bar gamma, Lambda(Sigma) over bar (0)gamma, Sigma(0)(Sigma) over bar (0)gamma processes using 230 fb(-1) of integrated luminosity collected by the BABAR detector at e(+)e(-) center-of-mass energy of 10.58 GeV. From the analysis of the baryon-antibaryon mass spectra the cross sections for e(+)e(-)->Lambda(Lambda) over bar, Lambda(Sigma) over bar (0), Sigma(0)(Sigma) over bar>(0) are measured in the dibaryon mass range from threshold up to 3 GeV/c(2). The ratio of electric and magnetic form factors, |G(E)/G(M)|, is measured for e(+)e(-)->Lambda(Lambda) over bar, and limits on the relative phase between Lambda form factors are obtained. We also measure the J/psi ->Lambda(Lambda) over bar, Sigma(0)(Sigma) over bar (0), and psi(2S)->Lambda(Lambda) over bar branching fractions.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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Journal or Publication Title: | PHYSICAL REVIEW D | ||||
Publisher: | AMER PHYSICAL SOC | ||||
ISSN: | 1550-7998 | ||||
Official Date: | November 2007 | ||||
Dates: |
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Volume: | 76 | ||||
Number: | 9 | ||||
Number of Pages: | 23 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevD.76.092006 | ||||
Publication Status: | Published |
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