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Measurement E213M1139

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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 : 1.95 — 1.975 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 1.7329 0.1392 0.2818 0.3143
27 1.6613 0.1473 0.2771 0.3139
45 1.2212 0.1108 0.2641 0.2864
63 1.2435 0.1005 0.246 0.2657
81 1.3562 0.1185 0.2508 0.2774
99 1.0899 0.0667 0.2041 0.2148
117 1.0892 0.1004 0.1991 0.223
135 0.792 0.0612 0.1739 0.1843
153 0.811 0.1 0.3071 0.323
171 1.1047 0.0029 0.6937 0.6937