CLAS Physics Database

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Measurement E216M386

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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 : 3.5 — 4.2 GeV2
W : 1.4 — 1.45 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 0.55607 0.111817 0.11028039
27 0.507364 0.0439376 0.05884373
45 0.508227 0.0323538 0.04535898
63 0.410554 0.0309735 0.03808384
81 0.368169 0.025313 0.03273317
99 0.443719 0.0500101 0.0634009
117 0.388645 0.0234366 0.09142518
135 0.337956 0.0219296 0.11566007
153 0.453615 0.0022472 0.25395393
171 0.546492 0.00054127 0.30226475