Measurement E179M24

Experiment:	SIDIS Dihadron Beam Spin Asymmetry
Year:	2020	Measurement comment: Binning scheme: bins of P_T, for M_h below and above 0.63 GeV Experiment comment: Process: ep→eπ⁺π^-X Data tables have the following columns: mean Q² mean x mean M_h, the dihadron invariant mass mean z, of the pion pair mean P_T, more commonly written P_h^⊥, is the component of the total dihadron momentum, transverse to q A_LU amplitude, for a particular modulation statistical uncertainty systematic uncertainty For each of the 7 asymmetry modulations, there are 4 tables, one for each binning scheme: (1) binned by x, (2) binned by M_h, (3) binned by z and M_h, and (4) binned by P_T and M_h.
Spokespersons:	C. Dilks, T. Hayward, A. Vossen
Reaction:	ep → π π + X
Polarization:	beam (longitudinal)
Quantity:	A_LU^{sin (−φ_h+2φ_R})
Q²:	1.0 — 10.6 GeV²
W:	2.0 — 4.0 GeV
x:	0.06 — 0.77
E_beam:	10.6041 GeV
Publication:	T.B. Hayward, C. Dilks, A. Vossen, H. Avakian Observation of Beam Spin Asymmetries in the Process ep→eπ+π-X with CLAS12 // (submitted to PRL)

Measurement data
Q², [GeV²]	x	M(π⁺,π⁻), [GeV]	z	P_T, [GeV]	A_LU^{sin (−φ_h+2φ_R})	uncertainty
3.534	0.309	0.501	0.591	0.169	0.00739522	0.010429
3.429	0.284	0.493	0.568	0.311	-0.000328767	0.00928622
3.221	0.259	0.481	0.553	0.426	0.00414872	0.00824006
3.123	0.244	0.474	0.541	0.533	0.00898482	0.00763664
3.027	0.231	0.464	0.532	0.653	0.00832568	0.00630234
2.759	0.204	0.454	0.531	0.864	-7e-05	0.00493986
2.897	0.226	0.946	0.56	0.16	-0.00712527	0.0050479
2.865	0.221	0.915	0.566	0.306	-0.0220603	0.0050487
2.837	0.217	0.894	0.57	0.422	-0.0225858	0.00525688
2.752	0.207	0.876	0.57	0.53	-0.0269383	0.00631574
2.677	0.199	0.858	0.574	0.648	-0.0304237	0.00557594
2.528	0.182	0.832	0.586	0.852	-0.0358419	0.00846557

CLAS Physics Database