CLAS Physics Database

Measurement E216M530

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 4.2 — 5.0 GeV2
W: 1.5 — 1.55 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.620832 0.0737255
27.0 0.609125 0.0365186
45.0 0.517397 0.0277214
63.0 0.447571 0.0213671
81.0 0.426066 0.0210761
99.0 0.423067 0.0284751
117.0 0.34912 0.0639248
135.0 0.389413 0.022464
153.0 0.341917 0.0132896
171.0 0.520852 0.0005225