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Measurement of the eta and eta(') transition form factors at q(2)=112 GeV2
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BaBar Collaborat (Including:
). (2006) Measurement of the eta and eta(') transition form factors at q(2)=112 GeV2. PHYSICAL REVIEW D, 74 (1). -. doi:10.1103/PhysRevD.74.012002 ISSN 1550-7998.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.74.012002
Abstract
We report a study of the processes e(+)e(-)->eta gamma and e(+)e(-)->eta(')gamma at a center-of-mass energy of 10.58 GeV, using a 232 fb(-1) data sample collected with the BABAR detector at the PEP-II collider at SLAC. We observe 20(-5)(+6)eta gamma and 50(-7)(+8)eta(')gamma events over small backgrounds, and measure the cross sections sigma(e(+)e(-)->eta gamma)=4.5(-1.1)(+1.2)+/- 0.3 fb and sigma(e(+)e(-)->eta(')gamma)=5.4 +/- 0.8 +/- 0.3 fb. The corresponding transition form factors at q(2)=112 GeV2 are q(2)vertical bar F-eta(q(2))vertical bar=0.229 +/- 0.030 +/- 0.008 GeV, and q(2)vertical bar F-eta(')(q(2))vertical bar=0.251 +/- 0.019 +/- 0.008 GeV, respectively.
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: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 1550-7998 | ||||
Official Date: | July 2006 | ||||
Dates: |
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Volume: | 74 | ||||
Number: | 1 | ||||
Number of Pages: | 14 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevD.74.012002 | ||||
Publication Status: | Published |
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