CLAS Physics Database

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Measurement E101M36

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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: -0.35 < 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 — 1.825 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
0.63879	0.138026	0.005174	0.002253	0.005643
0.6605	0.134616	0.005668	0.002191	0.006077
0.68451	0.111161	0.00617	0.001834	0.006437
0.71006	0.095763	0.005228	0.001593	0.005466
0.73639	0.075381	0.004096	0.001231	0.004277
0.7631	0.05962	0.005263	0.001062	0.005369
0.78531	0.051721	0.003349	0.000881	0.003463
0.80893	0.055982	0.008089	0.001385	0.008206
0.83751	0.045833	0.002226	0.000778	0.002358
0.86174	0.042035	0.002056	0.000689	0.002169
0.88706	0.042341	0.001958	0.000707	0.002082
0.91207	0.038377	0.001806	0.000627	0.001912
0.93544	0.036494	0.001986	0.000593	0.002073
0.96238	0.03488	0.001673	0.000591	0.001774
0.99083	0.032286	0.001639	0.000527	0.001722
1.0154	0.03241	0.001631	0.000534	0.001716
1.03365	0.030282	0.00236	0.000498	0.002412
1.06555	0.026196	0.001779	0.000446	0.001834
1.08628	0.025784	0.001618	0.000422	0.001673
1.11228	0.022449	0.001247	0.000365	0.001299
1.13585	0.019229	0.001585	0.000317	0.001617
1.16271	0.020073	0.001652	0.000324	0.001684
1.18467	0.016678	0.001725	0.000279	0.001747
1.2086	0.015519	0.001518	0.0003	0.001547
1.23817	0.013845	0.001392	0.000236	0.001412
1.26439	0.011608	0.001072	0.00019	0.001088
1.28714	0.011989	0.001204	0.000196	0.001219
1.31028	0.01172	0.001402	0.00019	0.001415
1.33443	0.009729	0.001092	0.000157	0.001104
1.3617	0.008469	0.000853	0.000139	0.000864
1.38768	0.009301	0.000908	0.000157	0.000921
1.41184	0.006873	0.000829	0.000138	0.00084
1.43719	0.006415	0.000789	0.000106	0.000796
1.4625	0.005238	0.000712	8.5e-05	0.000717
1.4875	0.004227	0.000627	7e-05	0.000631
1.51173	0.003893	0.000555	0.000124	0.000569
1.53857	0.002884	0.000652	4.7e-05	0.000654
1.5624	0.0048	0.000693	7.9e-05	0.000697
1.61091	0.001814	0.00044	2.9e-05	0.000441
1.63789	0.002378	0.000534	3.8e-05	0.000535
1.68716	0.00148	0.000408	2.4e-05	0.000409
1.76404	0.001871	0.000517	3e-05	0.000517
1.7886	0.001796	0.00049	2.9e-05	0.000491
1.8119	0.001711	0.000502	2.8e-05	0.000503