CLAS Physics Database

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Measurement E101M93

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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: 0.7 < cos(θ)_dcm < 0.8

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 — 1.3 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	0.061275	0.004122	0.000357	0.004138
0.57673	0.036799	0.002364	0.000159	0.002369
0.62254	0.034283	0.001908	0.000161	0.001914
0.66946	0.031259	0.002295	0.000106	0.002298
0.7245	0.031784	0.002218	0.00012	0.002221
0.77803	0.021811	0.0019	4.5e-05	0.0019
0.83525	0.013405	0.001168	8.7e-05	0.001171
0.87509	0.010376	0.000735	4.8e-05	0.000736
0.9215	0.009035	0.000693	3.6e-05	0.000694
0.97571	0.005595	0.000497	2.8e-05	0.000498
1.0204	0.00454	0.000523	1.7e-05	0.000523
1.07684	0.002604	0.000378	2.3e-05	0.000379
1.11947	0.001815	0.000286	2.6e-05	0.000287
1.17191	0.001162	0.000309	0.000106	0.000326
1.27455	0.001011	0.000248	2.6e-05	0.000249