CLAS Physics Database

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Measurement E216M304

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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 : 1.65 — 1.7 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 2.05352 0.122608 0.25759501
27 2.16559 0.148626 0.21366763
45 1.96013 0.103083 0.15834743
63 1.68652 0.115349 0.1855319
81 1.36134 0.0428365 0.1257649
99 1.28866 0.062087 0.11426476
117 1.21298 0.0460545 0.10685389
135 1.19769 0.0768627 0.127632
153 1.49354 0.115142 0.16535257
171 1.60649 0.108793 0.17754934