CLAS Physics Database

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Measurement E216M287

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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 : 3 — 3.5 GeV2
W : 1.55 — 1.6 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 1.03587 0.0797336 0.08438548
27 1.02647 0.0459516 0.08278136
45 0.909746 0.0305975 0.07132967
63 0.861221 0.0281281 0.07120551
81 0.866299 0.0307958 0.06853839
99 0.942439 0.0360254 0.07475975
117 0.915514 0.0432368 0.11591277
135 0.849856 0.0451493 0.18578292
153 0.734515 0.0419695 0.30261719
171 1.05144 0.00801357 0.55122139