CLAS Physics Database

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Measurement E216M763

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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 : 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 0.134077 0.0444445 0.02960536
27 0.0988536 0.0224079 0.01198878
45 0.139437 0.0264585 0.01801163
63 0.0917023 0.0164785 0.00857243
81 0.10999 0.0171541 0.02031897
99 0.102532 0.0222837 0.01240667
117 0.0768749 0.0114305 0.00982238
135 0.111099 0.0180962 0.01250924
153 0.117908 0.0215597 0.01243064
171 0.0973625 0.0270835 0.01797981