CLAS Physics Database

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Measurement E216M242

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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 — 2.05 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 3.03823 0.0733973 0.27988009
27 2.48569 0.045842 0.21984544
45 2.08878 0.0343391 0.16993532
63 1.87847 0.0383385 0.15177366
81 1.89992 0.0475921 0.14443872
99 1.8843 0.0323218 0.13961101
117 1.88432 0.0338504 0.15320372
135 1.71994 0.0411551 0.1508042
153 1.8778 0.0747796 0.21123719
171 1.26839 0.0138244 0.73483213