CLAS Physics Database

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Measurement E216M872

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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 : 6 — 7 GeV2
W : 2 — 2.05 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 0.431662 0.0433735 0.03638864
27 0.469021 0.025788 0.03569676
45 0.349942 0.016928 0.02693703
63 0.31342 0.0157517 0.02518008
81 0.283198 0.015718 0.02288532
99 0.263731 0.0270123 0.02458661
117 0.249855 0.0185651 0.02063741
135 0.211054 0.0242908 0.03014079
153 0.153872 0.0170878 0.03252193
171 0.166148 0.00017909 0.08740346