CLAS Physics Database

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Measurement E216M296

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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 — 3.5 GeV2
W : 1.6 — 1.65 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 1.09031 0.0828718 0.09779257
27 1.10963 0.045297 0.0878242
45 1.10512 0.0308779 0.0876859
63 1.02769 0.0278886 0.0779372
81 1.13988 0.0312175 0.08336767
99 1.03836 0.0379275 0.07823889
117 1.13419 0.0509204 0.12340846
135 1.25179 0.278432 0.2473084
153 0.740028 0.0337774 0.31260505
171 1.00009 0.00860872 0.54300288