CLAS Physics Database

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Measurement E216M251

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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 : 2.4 — 3 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 3.06202 0.126871 0.28754793
27 2.51935 0.0571861 0.20968885
45 2.06854 0.0325263 0.16842075
63 1.73267 0.0395191 0.14116889
81 1.69304 0.0343713 0.12313868
99 1.80929 0.0571155 0.12970245
117 1.77133 0.0719157 0.15444169
135 1.61004 0.0467467 0.13933447
153 1.92717 0.0861981 0.22174078
171 1.19045 0.0436632 0.63052319