CLAS Physics Database

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Measurement E216M206

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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+πp, polarization: none

Q2 : 2.4 — 3 GeV2
W : 1.8 — 1.85 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 2.13207 0.190334 0.24260725
27 2.15898 0.0718081 0.21056458
45 2.3128 0.040284 0.2000104
63 2.2876 0.0400809 0.19072282
81 2.55948 0.0683751 0.21943961
99 2.53514 0.0457733 0.20782259
117 2.39479 0.0722033 0.24231687
135 2.32337 0.110926 0.28757039
153 1.75989 0.0744123 0.40086093
171 1.74137 0.0158798 0.99115182