CLAS Physics Database

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Measurement E216M305

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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 : 1.65 — 1.7 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 1.58402 0.0909494 0.12738087
27 1.5271 0.0496335 0.11912058
45 1.45532 0.0362227 0.11647866
63 1.46283 0.0362317 0.10966906
81 1.52474 0.0362036 0.1153562
99 1.53941 0.0365466 0.11795052
117 1.57026 0.0473543 0.18532002
135 1.26349 0.061672 0.42756036
153 0.98586 0.0400122 0.4015855
171 1.31041 0.0116025 0.72818687