CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E216M350

You are not logged in.

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 : 1.9 — 1.95 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 1.94478 0.0902433 0.21264365
27 1.87178 0.0454558 0.16216194
45 1.6891 0.0326449 0.1373973
63 1.6785 0.0380945 0.13503423
81 1.86562 0.0533676 0.137059
99 1.72212 0.0508649 0.12437841
117 1.65556 0.0404389 0.13416767
135 1.42355 0.0778463 0.14141957
153 1.24416 0.0639447 0.21723765
171 0.99626 0.00975524 0.59838156