CLAS Physics Database

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Measurement E216M377

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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 2.25955 0.091193 0.18642926
27 2.0278 0.0480717 0.16087446
45 1.65326 0.0351281 0.12649426
63 1.38989 0.0337049 0.1060366
81 1.33352 0.033881 0.09457636
99 1.42462 0.038138 0.10154081
117 1.24676 0.0341207 0.09112689
135 1.04617 0.0369432 0.10084569
153 1.0596 0.0836255 0.12382034
171 0.916978 0.172949 0.438624