CLAS Physics Database

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Measurement E101M47

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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 — 1.125 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	Data errors, mcb/sr	Systematic errors, mcb/sr	Full errors, mcb/sr
0.5219	0.068106	0.007602	0.00036	0.00761
0.53089	0.04852	0.004492	0.000317	0.004503
0.56565	0.039474	0.003827	0.000386	0.003846
0.58468	0.03509	0.002978	8.6e-05	0.002979
0.61007	0.035721	0.002687	0.000128	0.00269
0.63879	0.029829	0.002598	0.00029	0.002614
0.6605	0.029184	0.002906	8.9e-05	0.002908
0.68451	0.036324	0.003895	0.000126	0.003897
0.71006	0.028543	0.003094	0.000264	0.003105
0.73639	0.027187	0.002692	0.000217	0.002701
0.7631	0.028541	0.004004	0.000145	0.004006
0.78531	0.017481	0.002075	6.3e-05	0.002076
0.80893	0.020468	0.005238	0.000288	0.005246
0.83751	0.012262	0.001197	7.7e-05	0.001199
0.86174	0.01034	0.001082	4.3e-05	0.001083
0.88706	0.007895	0.000864	7.1e-05	0.000867
0.91207	0.008324	0.000894	4e-05	0.000895
0.93544	0.006779	0.000909	6.9e-05	0.000911
0.96238	0.00598	0.000728	4.3e-05	0.000729
0.99083	0.003895	0.000599	6.9e-05	0.000603
1.0154	0.003762	0.000586	6e-05	0.000589
1.03365	0.00286	0.000806	9.9e-05	0.000812
1.06555	0.002506	0.000578	4.7e-05	0.00058
1.08628	0.002391	0.000495	0.000102	0.000506
1.11228	0.001825	0.000364	4.1e-05	0.000367