CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E195M172

You are not logged in.

Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: Coordinate system:
    (x,y,z), z along virtual photon direction, y normal to electron scattering plane, x=y x z
Q2 bin: [1:0.4] GeV^2
cos(θKc.m.) bin: [0.5:1.0]

Publication:

Quantity measured: P′z,
z projection of beam-recoil transferred polarization P′ in (x,y,z) system
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: K+ Σ0, polarization: polarized

Q2 : 0.4 — 1 GeV2
W : 1.6 — 2.4 GeV
Ebeam : 7.546 GeV

Observable quantity measured (Y axis): P′z,
Plot measurement data

Parameter (X axis): W, GeV

Click here to get data in text file, delimited with tabs.

Measured data:

W,
GeV
P′z Data errors Systematic errors
1.64 0 0 0
1.72 0.1424 0.6205 0.13872
1.8 -0.2673 0.25987 0.07015
1.88 0.0089 0.21574 0.05738
1.96 -0.05692 0.22878 0.06508
2.04 -0.32135 0.22124 0.06801
2.12 -0.18662 0.21081 0.06058
2.2 -0.45073 0.19806 0.05554
2.28 0.38072 0.19082 0.05353
2.36 -0.05216 0.18722 0.05263