CLAS Physics Database

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Measurement E216M438

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Experiment: CLAS12 Run Group A, 2018

Spokespersons: Krishna Chandra

No publications available for this experiment

Quantity measured: dσ/dψ(p), mcbn/rad
Differential cross section, where ψ(p) is out-of-plane angle of π+ and 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 : 1.7 — 1.75 GeV

Observable quantity measured (Y axis): dσ/dψ(p), mcbn/rad
Plot measurement data

Parameter (X axis): ψ(p), deg

Click here to get data in text file, delimited with tabs.

Measured data:

ψ(p),
deg
dσ/dψ(p),
mcbn/rad
Stat. error,
mcbn/rad
Syst. error,
mcbn/rad
18 0.517197 0.0341278 0.0871247
54 0.469847 0.0312381 0.05588273
90 0.427078 0.0149681 0.03394194
126 0.430318 0.0116231 0.03235567
162 0.439346 0.0110246 0.0329483
198 0.410721 0.0152615 0.0322872
234 0.386697 0.0111953 0.031649
270 0.417692 0.0137614 0.03347701
306 0.429977 0.015931 0.04653983
342 0.425852 0.0361988 0.08273352