CLAS Physics Database

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Measurement E216M331

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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 : 1.8 — 1.85 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 1.76093 0.104501 0.1986933
27 1.80661 0.107991 0.19218589
45 1.69895 0.057389 0.14523107
63 1.76853 0.046131 0.23569895
81 1.66317 0.0623283 0.1429607
99 1.53742 0.0508945 0.17062345
117 1.35003 0.0464168 0.11611304
135 1.26918 0.0372114 0.13066335
153 1.33184 0.0547199 0.13411602
171 1.83408 0.105529 0.25516011