CLAS Physics Database

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Measurement E101M103

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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: 0.15 < cos(θ)_dcm < 0.25

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 — 1.45 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
0.52803	0.167724	0.006295	0.000286	0.006302
0.57673	0.093814	0.003515	0.000312	0.003529
0.62254	0.05776	0.002181	0.000152	0.002186
0.66946	0.041968	0.002237	0.000113	0.00224
0.7245	0.031821	0.001871	0.000124	0.001875
0.77803	0.030184	0.002017	8.4e-05	0.002019
0.83525	0.024655	0.001536	4.6e-05	0.001537
0.87509	0.020461	0.00101	6.4e-05	0.001012
0.9215	0.01711	0.000942	4.6e-05	0.000944
0.97571	0.013208	0.000784	5.7e-05	0.000786
1.0204	0.010662	0.000824	4e-05	0.000825
1.07684	0.008414	0.000717	5.9e-05	0.000719
1.11947	0.00656	0.000564	2.5e-05	0.000564
1.17191	0.005124	0.000654	2.6e-05	0.000654
1.2231	0.002617	0.000453	3e-06	0.000453
1.27455	0.002084	0.000344	2e-06	0.000344
1.32347	0.001819	0.000362	2e-06	0.000362
1.37426	0.001424	0.000258	1e-05	0.000259
1.42506	0.000838	0.000207	1e-06	0.000207
1.47411	0.000816	0.000214	2.3e-05	0.000215