CLAS Physics Database

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Measurement E216M359

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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 : 1.95 — 2 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 2.22068 0.086799 0.19514961
27 1.96261 0.0527338 0.16736746
45 1.67867 0.0322018 0.14076108
63 1.59992 0.037924 0.12445173
81 1.64575 0.0370242 0.11902437
99 1.6837 0.0383433 0.1198796
117 1.47376 0.043342 0.1162765
135 1.37351 0.0520442 0.12808218
153 1.22226 0.0570353 0.18381388
171 0.955643 0.0102811 0.55983464