CLAS Physics Database

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Measurement E216M323

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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 : 1.75 — 1.8 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 1.65861 0.0685046 0.12872068
27 1.5524 0.0414428 0.12360655
45 1.77236 0.0379634 0.13646811
63 1.75819 0.0349022 0.12952892
81 1.89705 0.0503058 0.13681575
99 1.90957 0.0419886 0.13772714
117 1.5883 0.0446048 0.14844744
135 1.51471 0.0499714 0.21286535
153 1.11453 0.0457665 0.34631981
171 1.34832 0.0105769 0.76390636