CLAS Physics Database

Measurement E195M46

Experiment: CLAS12 RG-K
Year: 2022

Measurement comment:

P′z vs. cos(θKc.m.) (integrated over Q2, W)
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
cos(θKc.m.) P′z uncertainty syst. uncert.
-0.96 0.21821 0.67833 0.09139
-0.88 -0.17305 0.20685 0.07859
-0.8 0.14231 0.17094 0.07087
-0.72 -0.17572 0.17061 0.07327
-0.64 0.08413 0.17031 0.07309
-0.56 -0.06617 0.16256 0.06828
-0.48 -0.07289 0.15534 0.06297
-0.4 0.08873 0.15091 0.05836
-0.32 0.14551 0.14631 0.05777
-0.24 -0.11425 0.14389 0.05846
-0.16 0.17688 0.14229 0.05839
-0.08 0.13443 0.13381 0.05609
0.0 0.20238 0.13384 0.05593
0.08 0.19826 0.13293 0.05716
0.16 0.22376 0.13132 0.05493
0.24 -0.14322 0.12922 0.05288
0.32 -0.27764 0.12884 0.05246
0.4 -0.25003 0.12483 0.04822
0.48 -0.18885 0.12007 0.04424
0.56 -0.2026 0.11887 0.04244
0.64 -0.07197 0.11745 0.04265
0.72 -0.45589 0.11796 0.04527
0.8 0.20167 0.13223 0.05384
0.88 -0.02664 0.16563 0.06548
0.96 -0.90669 0.25302 0.08806