CLAS Physics Database

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Measurement E216M224

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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 : 1.9 — 1.95 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 2.90546 0.0919933 0.28804655
27 2.55549 0.0538555 0.24341742
45 2.24554 0.0372306 0.201175
63 2.18467 0.0459983 0.18087444
81 2.31026 0.0555437 0.17457506
99 2.42828 0.036651 0.17925596
117 2.24704 0.0378752 0.1891313
135 2.01874 0.0472428 0.19573619
153 1.88601 0.0872385 0.31402099
171 1.44363 0.0127475 0.8588833