CLAS Physics Database

Measurement E195M41

Experiment: CLAS12 RG-K
Year: 2022

Measurement comment:

P′x vs. Q2 (integrated over W, cos(θKc.m.))
Coordinate system:
    (x,y,z), z along virtual photon direction, y normal to electron scattering plane, x=y x z
Spokesperson: Daniel S. Carman
Reaction: ep → K+ Σ0
Polarization: final
Quantity: P′x
Q2: 0.4 — 4.5 GeV2
W: 1.6 — 2.4 GeV
Ebeam: 7.546 GeV
Publication:
D. S. Carman et al. (CLAS Collaboration) Beam-recoil transferred polarization in K + Y electroproduction in the nucleon resonance region with CLAS12 // https://journals.aps.org/prc/abstract/10.1103/PhysRevC.105.065201

Measurement data
Q2, [GeV2] P′x uncertainty syst. uncert.
0.45 -0.03943 0.0813 0.05613
0.55 -0.01167 0.07117 0.04833
0.65 0.09866 0.08001 0.05267
0.75 0.19599 0.08598 0.05208
0.85 0.0321 0.09458 0.05467
0.95 0.26875 0.10487 0.05764
1.05 -0.19726 0.11231 0.05717
1.15 0.22825 0.12462 0.05988
1.25 -0.13839 0.1356 0.0594
1.35 0.15206 0.14927 0.06399
1.45 0.07164 0.16333 0.06304
1.6 0.40813 0.13431 0.06869
1.8 -0.00382 0.1536 0.06806
2.0 0.18029 0.18812 0.07012
2.2 -0.16159 0.21951 0.07302
2.4 0.05908 0.25056 0.07068
2.65 0.21976 0.24612 0.06998
2.95 -0.08758 0.29447 0.06528
3.3 0.2625 0.33532 0.07052
4.0 0.05292 0.32426 0.07259