CLAS Physics Database

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Measurement E216M548

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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 : 4.2 — 5 GeV2
W : 1.6 — 1.65 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 0.571885 0.0526458 0.0463425
27 0.579525 0.0287025 0.04432667
45 0.539211 0.0226629 0.04171713
63 0.510042 0.0200653 0.03899335
81 0.553156 0.0209057 0.0405599
99 0.565908 0.0289769 0.04213233
117 0.502726 0.0231747 0.04365762
135 0.554638 0.0736697 0.09534792
153 0.359875 0.0201911 0.14173148
171 0.506349 0.00120374 0.25672565