CLAS Physics Database

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Measurement E216M655

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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 : 1.5 — 1.55 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 0.426608 0.087325 0.06809749
27 0.371518 0.0329831 0.03691289
45 0.277774 0.0212208 0.0273832
63 0.291896 0.0221352 0.02552707
81 0.204418 0.0149467 0.01817427
99 0.32275 0.0829118 0.0781397
117 0.229514 0.0197879 0.02413039
135 0.322331 0.0310488 0.05619085
153 0.281451 0.055472 0.04490755
171 0.309499 0.0417474 0.02993819