CLAS Physics Database

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Measurement E216M170

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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+πp, polarization: none

Q2 : 2.4 — 3 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 1.69812 0.0862521 0.13771704
27 1.73639 0.0528267 0.13821212
45 1.62057 0.033832 0.12417752
63 1.47169 0.028973 0.11076877
81 1.55851 0.0331593 0.11144895
99 1.54813 0.0382521 0.12474748
117 1.50955 0.0465526 0.20054265
135 1.34418 0.0673569 0.22485478
153 0.885248 0.0422927 0.38296682
171 1.3215 0.0116552 0.7156236