CLAS Physics Database

Measurement E195M40

Experiment: CLAS12 RG-K
Year: 2022

Measurement comment:

P′x 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′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
cos(θKc.m.) P′x uncertainty
-0.96 -1.0 0.67491
-0.88 0.51112 0.20349
-0.8 0.17853 0.16582
-0.72 0.11886 0.16626
-0.64 0.01441 0.16527
-0.56 0.04648 0.15939
-0.48 0.14439 0.15064
-0.4 0.36568 0.14591
-0.32 -0.01977 0.14177
-0.24 0.22843 0.13863
-0.16 -0.00592 0.1366
-0.08 0.09129 0.12971
0.0 -0.13397 0.12859
0.08 0.25043 0.1292
0.16 -0.07236 0.12617
0.24 -0.16616 0.12356
0.32 0.13516 0.12372
0.4 -0.01143 0.11909
0.48 -0.18373 0.11567
0.56 0.0644 0.1114
0.64 0.03494 0.11142
0.72 0.10361 0.11146
0.8 -0.06787 0.12048
0.88 0.34747 0.14264
0.96 0.29938 0.199