CLAS Physics Database

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Measurement E216M143

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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 : 1.45 — 1.5 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 1.62793 0.171086 0.18617082
27 1.45252 0.0607115 0.11877346
45 1.26369 0.0417005 0.09835991
63 1.17751 0.0339294 0.09119855
81 1.07907 0.0317808 0.08946143
99 1.06744 0.033297 0.12278024
117 1.12063 0.0261754 0.25853761
135 0.933708 0.0372123 0.31332061
153 1.12724 0.0604322 0.60238259
171 1.63693 0.0080302 0.92221054