CLAS Physics Database

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Measurement E216M880

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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 : 6 — 7 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 0.613248 0.0716182 0.11919977
27 0.381286 0.0374416 0.03993105
45 0.347988 0.0260288 0.03018087
63 0.291871 0.0200106 0.02675304
81 0.23659 0.024932 0.02382226
99 0.220068 0.0190414 0.02348582
117 0.194591 0.0122262 0.0204914
135 0.184258 0.0146153 0.01849802
153 0.181685 0.0135302 0.02157253
171 0.23853 0.0262574 0.03115075