CLAS Physics Database

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Measurement E216M179

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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 : 1.65 — 1.7 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 2.27984 0.0883055 0.1760787
27 2.23582 0.0520964 0.17887461
45 2.21334 0.0430108 0.1749488
63 2.16229 0.068544 0.16520304
81 2.25787 0.0419686 0.17101973
99 2.20408 0.041792 0.18762204
117 2.11033 0.0669603 0.28247935
135 1.85216 0.0819831 0.31294146
153 1.44775 0.0626495 0.53130575
171 1.86639 0.0161299 1.04541085