CLAS Physics Database

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Measurement E216M404

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Experiment: CLAS12 Run Group A, 2018

Spokespersons: Krishna Chandra

No publications available for this experiment

Quantity measured: dσ/d(−cos(θ(π+))), mcbn/rad
Differential cross section, where cos(θ(π+) is cosine of the azimuthal angle of π+ in CMS.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: π+π−p, polarization: none

Q2 : 3.5 — 4.2 GeV2
W : 1.5 — 1.55 GeV

Observable quantity measured (Y axis): dσ/d(−cos(θ(π+))), mcbn/rad
Plot measurement data

Parameter (X axis): θ(π+), deg

Click here to get data in text file, delimited with tabs.

Measured data:

θ(π+),
deg
dσ/d(−cos(θ(π+))),
mcbn/rad
Stat. error,
mcbn/rad
Syst. error,
mcbn/rad
9 0.660768 0.0592484 0.06260848
27 0.689552 0.0404065 0.05344577
45 0.691549 0.0316098 0.06269368
63 0.651491 0.0241824 0.04927682
81 0.703326 0.031411 0.0518824
99 0.584633 0.0437157 0.05888268
117 0.617879 0.0327622 0.08991619
135 0.605933 0.0232348 0.15563694
153 0.598253 0.0164483 0.32215899
171 0.93739 0.00137793 0.50926367