CLAS Physics Database

Measurement E216M409

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/dψ(π)
Q2: 3.5 — 4.2 GeV2
W: 1.55 — 1.6 GeV

Measurement data
ψ(π), [deg] dσ/dψ(π), [μb/rad] uncertainty
18.0 0.218918 0.020155
54.0 0.202443 0.0124147
90.0 0.198916 0.00880134
126.0 0.19317 0.00935989
162.0 0.212298 0.0086868
198.0 0.204156 0.00930427
234.0 0.233816 0.0204265
270.0 0.204043 0.01069
306.0 0.178486 0.0121619
342.0 0.236219 0.0288796