CLAS Physics Database

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Measurement E216M909

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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(p))), mcbn/rad
Differential cross section, where cos(θ(p)) is cosine of the azimuthal angle of p 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 : 1.5 — 1.55 GeV

Observable quantity measured (Y axis): dσ/d(−cos(θ(p))), mcbn/rad
Plot measurement data

Parameter (X axis): θ(p), deg

Click here to get data in text file, delimited with tabs.

Measured data:

θ(p),
deg
dσ/d(−cos(θ(p))),
mcbn/rad
Stat. error,
mcbn/rad
Syst. error,
mcbn/rad
9 0.0229669 0.00155267 0.01692773
27 0.0809883 0.0187087 0.0196372
45 0.145053 0.0691843 0.03291211
63 0.0886913 0.0152029 0.01611873
81 0.137889 0.043901 0.01547799
99 0.120218 0.0179595 0.0144137
117 0.122694 0.0169928 0.01557867
135 0.140797 0.0214746 0.01545003
153 0.113903 0.0225029 0.01591819
171 0.165353 0.0584581 0.0377461