CLAS Physics Database

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Measurement E216M314

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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 : 1.7 — 1.75 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 1.97204 0.0862792 0.1584883
27 1.79001 0.0530772 0.13857545
45 1.93667 0.040327 0.14848145
63 1.90166 0.039264 0.13748481
81 2.01662 0.0703503 0.15010655
99 1.97545 0.047356 0.14491282
117 1.94204 0.0506824 0.23100472
135 1.95336 0.12315 0.3112634
153 1.19152 0.0814271 0.47659808
171 1.69117 0.0142596 1.00114373