CLAS Physics Database

Measurement E195M47

Experiment: CLAS12 RG-K
Year: 2022

Measurement comment:

P′z 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′z
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′z uncertainty syst. uncert.
0.45 -0.06958 0.08546 0.05613
0.55 0.06225 0.07449 0.04833
0.65 0.08189 0.08348 0.05267
0.75 -0.09032 0.09041 0.05208
0.85 0.07522 0.0993 0.05467
0.95 -0.18293 0.10997 0.05764
1.05 0.18928 0.11836 0.05717
1.15 -0.17047 0.13251 0.05988
1.25 0.11354 0.14108 0.0594
1.35 0.04411 0.1585 0.06399
1.45 -0.27177 0.1721 0.06304
1.6 -0.2163 0.14162 0.06869
1.8 -0.05496 0.16509 0.06806
2.0 -0.42924 0.19442 0.07012
2.2 -0.47406 0.23122 0.07302
2.4 -0.76334 0.26791 0.07068
2.65 -0.49349 0.27326 0.06998
2.95 -1.0 0.31819 0.06528
3.3 0.59753 0.35675 0.07052
4.0 -0.10874 0.33363 0.07259