CLAS Physics Database

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Measurement E50M20

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Experiment: e1-dvcs run CLAS data, 2012

Spokespersons: V. Burket, L. Elouadrhiri, M. Garson, S. Stepanyan

Publication:

I. Bedlinskiy, V. Kubarovsky, S. Niccolai, P. Stoler, and CLAS Collaboration Measurement of Exclusive π⁰ Electroproduction Structure Functions and their Relationship to Transverse Generalized Parton Distributions // PRL 109, 112001 (2012)

Quantity measured: d⁴σ/dQ² dx_b dt dφ, nb/(rad*GeV^4)
Four folded differential cross section.
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: none
Final state: π⁰p, polarization: none

Q² :	3.741 — 3.759 GeV²
x_b :	0.5085 — 0.5143

Select data slice:
-t = GeV^2

Observable quantity measured (Y axis): d⁴σ/dQ² dx_b dt dφ, nb/(rad*GeV^4)
Plot measurement data

Parameter (X axis): φ, degrees

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Measured data:

-t, GeV^2	φ, degrees	d⁴σ/dQ² dx_b dt dφ, nb/(rad*GeV^4)	Data errors, nb/(rad*GeV^4)	Systematic errors, nb/(rad*GeV^4)
0.5065	9	5.7914	1.094	1.268
0.5075	27	10.151	1.333	0.313
0.509	45	11.052	1.547	1.303
0.5098	63	10.334	1.887	0.708
0.5102	81	9.2338	2.468	1.506
0.5081	99	7.9172	3.234	0.234
0.5093	261	7.5017	3.357	0.874
0.5068	279	10.921	1.962	0.149
0.5106	297	8.8083	1.429	2.047
0.5079	315	12.41	1.83	0.126
0.5079	333	9.554	1.615	0.169
0.5096	351	10.154	1.626	1.023
0.7875	9	8.0808	1.386	1.462
0.7898	27	7.4226	1.01	0.603
0.7938	45	10.336	1.044	0.805
0.7925	63	10.376	1.042	0.835
0.7936	81	7.7578	1.351	0.226
0.7936	99	8.2695	2.757	1.724
0.7926	117	12.036	4.91	1.642
0.7911	243	8.0065	3.026	1.702
0.7962	261	15.491	4	2.587
0.7938	279	8.2248	1.239	0.521
0.7908	297	9.6683	0.838	0.127
0.7933	315	8.9734	0.962	0.399
0.7896	333	9.8357	1.391	0.432
0.7888	351	10.569	1.762	1.276
1.227	27	5.3284	1.686	0.479
1.231	45	6.197	0.8	0.302
1.234	63	5.9284	0.74	0.131
1.234	81	6.5698	1.549	0.928
1.232	99	7.9335	2.2	1.611
1.235	117	6.1797	1.863	1.804
1.231	135	5.4689	2.233	1.087
1.228	225	6.1517	1.644	0.409
1.237	243	5.4184	1.243	0.082
1.236	261	6.8122	2.576	1.052
1.236	279	5.0684	1.267	1.246
1.235	297	6.0507	0.648	0.819
1.23	315	5.863	0.805	0.36
1.232	333	4.6016	1.878	0.628
1.728	27	3.9571	0.761	0.233
1.729	45	3.0065	0.463	0.236
1.731	63	2.9392	0.657	0.199
1.736	81	4.7838	1.235	0.492
1.735	99	3.9567	1.057	1.149
1.734	117	2.7993	0.748	0.343
1.726	243	2.2821	0.721	0.869
1.731	261	4.2874	1.292	0.71
1.735	279	2.7934	0.987	0.416
1.732	297	2.7512	0.561	0.284
1.736	315	3.777	0.523	0.087
1.73	333	1.0282	0.459	0.554