CLAS Physics Database

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Measurement E216M233

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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 : 2.4 — 3 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 3.13781 0.0834971 0.28438322
27 2.59869 0.0446291 0.23211354
45 2.14847 0.0390178 0.18428782
63 2.01274 0.0394981 0.1635718
81 2.06898 0.0355152 0.15033172
99 2.13117 0.036456 0.15618922
117 1.98487 0.040405 0.16920138
135 1.85809 0.0396001 0.17790537
153 1.8564 0.110303 0.24840907
171 1.39141 0.0144674 0.79688137