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Measurement E213M1270

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Experiment: E1-6, 2025, 2001

Spokespersons: R.W. Gothe, A. Trivedi

Experiment comment: Experiment year: 2001—2002

Measurement comment: The angle ψ is the angle between the plane defined by the three-momenta of the hadron (in parentheses) and the target proton, and the plane defined by the three-momenta of the other two final-state hadrons

No publications available for this experiment

Quantity measured: dσ/dψ(π), mcb/rad
Differential cross section, where ψ(π) is out-of-plane angle of p and π+ in CMS.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: π+πp, polarization: none

Q2 : 4.2 — 5 GeV2
W : 1.6 — 1.625 GeV
Ebeam : 5.754 GeV

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

Parameter (X axis): ψ(π), deg

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

Measured data:

ψ(π),
deg
dσ/dψ(π),
mcb/rad
Stat. error,
mcb/rad
Syst. error,
mcb/rad
Total error,
mcb/rad
18 0.1425 0.03 0.035 0.0495
54 0.1634 0.0216 0.0284 0.0357
90 0.1667 0.0193 0.0291 0.0349
126 0.177 0.0197 0.0301 0.0359
162 0.2434 0.0281 0.0365 0.0513
198 0.1694 0.0183 0.0277 0.0389
234 0.2025 0.0236 0.0332 0.0408
270 0.1697 0.0213 0.0291 0.0361
306 0.1549 0.021 0.0278 0.0349
342 0.1205 0.0161 0.033 0.046