Measurement E213M1360

Experiment:	E1-6, 2025
Year:	2001	Measurement comment: The angle ψ is the angle between the plane defined by the three-momenta of the hadron (in parentheses) and the target proton, and the plane defined by the three-momenta of the other two final-state hadrons Experiment comment: Experiment year: 2001—2002
Spokespersons:	R.W. Gothe, A. Trivedi
Reaction:	ep → π⁺π⁻p
Polarization:	none
Quantity:	dσ/dψ(π⁻)
Q²:	4.2 — 5.0 GeV²
W:	1.85 — 1.875 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.203	0.0229	0.0492	0.0542
54.0	0.2395	0.0297	0.0425	0.0519
90.0	0.2561	0.0274	0.0474	0.0547
126.0	0.2674	0.0253	0.0518	0.0576
162.0	0.3806	0.0375	0.0629	0.0732
198.0	0.2638	0.0296	0.0505	0.0585
234.0	0.274	0.0269	0.0519	0.0584
270.0	0.227	0.022	0.0441	0.0493
306.0	0.2205	0.0234	0.0405	0.0468
342.0	0.1835	0.0177	0.0471	0.0504

CLAS Physics Database