CLAS Physics Database

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Measurement E216M376

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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 — 3.5 GeV2
W : 2.05 — 2.1 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 3.01399 0.170109 0.28979122
27 2.35179 0.086266 0.19170879
45 1.64506 0.0658274 0.12298144
63 1.45915 0.0430218 0.10578673
81 1.31979 0.0381289 0.09932296
99 1.12166 0.0342371 0.08103341
117 0.974532 0.0270764 0.07693133
135 0.980823 0.0451104 0.0774125
153 1.08088 0.046829 0.12064489
171 1.56556 0.117842 0.27879538