CLAS Physics Database

Measurement E216M485

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 3.5 — 4.2 GeV2
W: 1.95 — 2.0 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.56686 0.0835181
27.0 1.41028 0.0370227
45.0 1.16974 0.0280616
63.0 1.10556 0.0267904
81.0 1.1779 0.032814
99.0 1.20858 0.0281705
117.0 1.07215 0.024379
135.0 0.917175 0.0674601
153.0 0.873383 0.0428267
171.0 0.802028 0.00223373