CLAS Physics Database

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Measurement E216M989

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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 : 7 — 8 GeV2
W : 1.95 — 2 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 0.458527 0.0674801 0.04269171
27 0.309255 0.0260157 0.0296869
45 0.25802 0.0318686 0.02665975
63 0.253106 0.0196215 0.0243201
81 0.249471 0.0185713 0.02886976
99 0.224287 0.0228467 0.0215845
117 0.147186 0.0266351 0.02070292
135 0.17131 0.0411904 0.02235799
153 0.0930312 0.0129305 0.02632687
171 0.125959 0.00012124 0.06529072