CLAS Physics Database

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Measurement E216M638

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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 : 5 — 6 GeV2
W : 1.4 — 1.45 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 0.18705 0.0511702 0.02487625
27 0.182361 0.0234233 0.02285684
45 0.189848 0.0189581 0.01742834
63 0.228921 0.0200537 0.01846601
81 0.169331 0.0152691 0.01931418
99 0.161351 0.0230639 0.01635845
117 0.136144 0.0170242 0.02238219
135 0.184091 0.0228158 0.05586275
153 0.200823 0.00081147 0.11830398
171 0.250637 0.00020888 0.1453381