CLAS Physics Database

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Measurement E216M637

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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 : 5 — 6 GeV2
W : 1.4 — 1.45 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 0.382478 0.0801608 0.05664162
27 0.22489 0.0347813 0.03212418
45 0.169016 0.0222202 0.02606235
63 0.158673 0.026261 0.02983386
81 0.1677 0.030047 0.03297655
99 0.164495 0.0167225 0.01735651
117 0.223485 0.0711049 0.05909421
135 0.225513 0.0315851 0.02747469
153 0.211799 0.0275193 0.0258886
171 0.321815 0.0557526 0.03639076