CLAS Physics Database

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Measurement E50M4

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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 :	1.48 — 1.483 GeV²
x_b :	0.2033 — 0.2043

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)
0.1214	279	51.857	23.23	23.32
0.1191	315	28.234	12.65	21.18
0.1746	45	40.687	18.24	3.45
0.1766	81	53.963	19.14	16.82
0.1742	99	37.025	16.6	4.587
0.1728	297	43.075	19.31	7.552
0.245	45	26.229	10.71	13.64
0.2493	63	19.226	8.607	2.673
0.2484	81	23.014	8.71	1.284
0.2481	99	48.456	12.96	7.23
0.2482	243	34.687	13.13	3.384
0.2514	261	33.041	11.7	1.777
0.2476	279	37.882	14.33	2.176
0.2477	297	43.324	12.52	2.246
0.2492	315	30.344	11.48	3.859
0.3518	81	29.427	11.13	0.972
0.3489	99	28.298	11.57	2.389
0.3512	279	25.109	11.24	3.063
0.3503	315	24.218	9.899	2.23
0.4958	45	12.622	5.155	0.573
0.4989	63	10.437	3.951	0.748
0.4989	81	6.7795	3.036	2.007
0.4967	297	17.084	5.699	9.352
0.4946	315	15.942	5.315	3.602
0.7662	45	5.3627	2.402	0.504
0.7671	315	6.2907	2.227	0.818