CLAS Physics Database

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Measurement E216M1007

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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 : 2.05 — 2.1 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 0.36673 0.0527953 0.03591392
27 0.403584 0.0329285 0.0497093
45 0.330371 0.0249039 0.04369468
63 0.306224 0.0261828 0.02870495
81 0.221625 0.0240479 0.02614221
99 0.253603 0.0294493 0.02901968
117 0.198914 0.0234195 0.05491494
135 0.140956 0.0212459 0.02226113
153 0.0757476 0.0213657 0.02755011
171 0.138697 0.00015056 0.07064258