CLAS Physics Database

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Measurement E50M19

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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 :	3.582 — 3.685 GeV²
x_b :	0.4231 — 0.4528

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)
0.2772	27	27.463	12.29	2.214
0.2748	297	47.693	21.36	3.441
0.274	351	44.259	19.82	4.417
0.3532	9	10.133	2.709	1.448
0.3557	27	9.0077	2.601	3.398
0.3534	45	16.361	3.755	0.463
0.3547	63	9.0895	3.438	0.428
0.3538	81	25.515	7.077	6.264
0.3538	99	12.042	5.388	1.19
0.3554	261	17.049	6.962	1.773
0.353	279	15.645	4.183	2.436
0.3546	297	11.556	2.803	1.678
0.3532	315	6.8214	2.275	1.315
0.3539	351	7.6962	2.566	1.216
0.498	9	5.7059	2.017	0.958
0.4972	27	8.8383	1.928	0.459
0.4966	45	11.219	2.015	1.922
0.4978	63	9.799	1.681	0.104
0.4977	81	11.789	1.864	0.514
0.4968	99	12.515	2.179	0.86
0.5	117	10.842	3.131	0.62
0.4989	243	12.667	3.073	2.127
0.4997	261	10.713	2.234	0.989
0.4955	279	13.854	2.021	1.508
0.4972	297	8.0921	1.295	0.828
0.4987	315	10.468	1.85	0.8
0.4966	333	11.982	2.907	1.254
0.4975	351	8.1338	2.452	2.064
0.7895	45	6.0794	2.3	1.396
0.7885	63	6.7948	1.132	1.052
0.79	81	7.9211	1.058	0.447
0.7927	99	11.302	1.598	0.618
0.7879	117	15.29	3.823	0.847
0.7894	243	7.8433	2.481	1.159
0.7934	261	5.6393	1.202	0.799
0.7857	279	8.717	1.134	0.716
0.7915	297	8.4503	1.129	0.309
0.7889	315	8.2492	2.488	0.379
1.228	45	4.4849	1.695	1.005
1.23	63	3.926	0.716	0.324
1.228	81	5.1652	0.913	0.549
1.228	99	3.5962	1.271	0.427
1.226	135	5.8849	2.404	0.651
1.226	225	3.7956	1.697	0.577
1.23	261	9.8695	2.637	0.399
1.229	279	4.3463	0.836	0.157
1.226	297	6.9845	0.909	0.133
1.23	315	3.3751	1.509	0.484
1.726	45	2.9477	0.642	0.196
1.739	63	2.1425	0.519	0.309
1.731	99	4.3734	1.546	0.66
1.731	117	4.2032	1.485	0.122
1.729	189	4.8183	2.155	1.534
1.73	225	2.4561	0.928	0.565
1.731	279	3.2373	1.144	0.172
1.722	297	3.456	0.601	0.404
1.724	315	1.4325	0.431	0.439
1.732	333	2.4957	1.115	0.517