CLAS Physics Database

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Measurement E101M109

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Experiment: g2a run CLAS data, 1999

Spokespersons: N/A

Experiment comment: Results are presented for 8 different binnings (4 E_γ binnings x 2 cos(θ)_{d_cm} binnings). Lower and upper limits of the E_γ and cos(θ)_{d_cm} bins are shown. Centroids of the E_γ bins are also shown.

Measurement comment: 0.75 < cos(θ)_dcm < 0.85

Publication:

Y. Ilieva, B. L. Berman, A. E. Kudryavtsev, I. I. Strakovsky, V. E. Tarasov, for the CLAS Collaboration Evidence of a backward peak in the γ + d → π⁰ + d cross section near the η threshold // Eur. Phys. J. A43, 261 (2010)

Quantity measured: dσ/dΩ, mcb/sr
Differential cross section.
Beam: γ, polarization: circular
Target: d (Z=1, A=2), polarization: none
Final state: π⁰d, polarization: none

E_γ :	0.5 — 1.15 GeV

Observable quantity measured (Y axis): dσ/dΩ, mcb/sr
Plot measurement data

Parameter (X axis): E_γ, GeV

Click here to get data in text file, delimited with tabs.

Measured data:

E_γ, GeV	dσ/dΩ, mcb/sr	Stat. error, mcb/sr	Syst. error, mcb/sr	Total error, mcb/sr
0.52803	0.054217	0.004026	0.000267	0.004035
0.57673	0.036205	0.002444	0.00024	0.002456
0.62254	0.032979	0.002008	0.000182	0.002016
0.66946	0.031648	0.002411	0.000151	0.002416
0.7245	0.0277	0.002113	9.7e-05	0.002115
0.77803	0.020985	0.001947	6.7e-05	0.001949
0.83525	0.012682	0.00117	6.2e-05	0.001172
0.87509	0.009037	0.00071	4e-05	0.000711
0.9215	0.007595	0.000657	3e-05	0.000658
0.97571	0.004925	0.000482	4e-05	0.000484
1.0204	0.003432	0.000477	3.6e-05	0.000479
1.07684	0.002511	0.000386	3.5e-05	0.000387
1.11947	0.001585	0.000279	2.5e-05	0.00028
1.17191	0.00122	0.000333	0.000118	0.000353