CLAS Physics Database

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Measurement E216M161

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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 : 1.55 — 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 1.5134 0.115097 0.17787229
27 1.46417 0.0453628 0.11496527
45 1.28266 0.0355651 0.10301158
63 1.27795 0.0272424 0.0961603
81 1.36527 0.0342776 0.1027164
99 1.28369 0.0434797 0.10800453
117 1.25259 0.0293003 0.18159467
135 1.1138 0.0472083 0.23785022
153 0.932329 0.0464236 0.41913806
171 1.48219 0.0117409 0.78277325