CLAS Physics Database

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Measurement E216M854

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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 : 6 — 7 GeV2
W : 1.9 — 1.95 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 0.411386 0.0436764 0.03479216
27 0.385358 0.0227623 0.02960814
45 0.394103 0.02132 0.03199935
63 0.30816 0.0161411 0.02593454
81 0.349409 0.019469 0.02836289
99 0.319466 0.0233325 0.02535877
117 0.286185 0.023703 0.02577742
135 0.191608 0.0378424 0.02385186
153 0.129088 0.0347906 0.03522674
171 0.16419 0.00015939 0.08563333