CLAS Physics Database

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Measurement E216M468

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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(p))), mcbn/rad
Differential cross section, where cos(θ(p)) is cosine of the azimuthal angle of p 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 : 1.85 — 1.9 GeV

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

Parameter (X axis): θ(p), deg

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

Measured data:

θ(p),
deg
dσ/d(−cos(θ(p))),
mcbn/rad
Stat. error,
mcbn/rad
Syst. error,
mcbn/rad
9 1.047 0.0566152 0.17656702
27 0.951377 0.0533542 0.11830362
45 0.76158 0.0403945 0.08757444
63 0.85147 0.0347321 0.09550226
81 1.041 0.0307985 0.09342716
99 1.31692 0.0496813 0.10997078
117 1.36188 0.0433469 0.12284165
135 1.32566 0.0591841 0.11601
153 1.47976 0.0451917 0.1150147
171 1.62091 0.0747445 0.14694971