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Measurement E213M1004

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Experiment: E1-6, 2025, 2001

Spokespersons: R.W. Gothe, A. Trivedi

Experiment comment: Experiment year: 2001—2002

No publications available for this experiment

Quantity measured: dσ/d(−cos(θ(π+))), mcb/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 : 3.5 — 4.2 GeV2
W : 1.575 — 1.6 GeV
Ebeam : 5.754 GeV

Observable quantity measured (Y axis): dσ/d(−cos(θ(π+))), mcb/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+))),
mcb/rad
Stat. error,
mcb/rad
Syst. error,
mcb/rad
Total error,
mcb/rad
9 0.9014 0.1109 0.1084 0.1624
27 0.8477 0.0631 0.0971 0.1416
45 0.8477 0.0985 0.1003 0.1552
63 0.6478 0.0468 0.0796 0.0923
81 0.7058 0.0423 0.0841 0.0941
99 0.6319 0.0554 0.0769 0.0948
117 0.7372 0.0443 0.0871 0.0977
135 0.5763 0.0461 0.0782 0.1163
153 0.5974 0.0644 0.2756 0.396
171 0.6783 0.0023 0.4053 0.571