CLAS Physics Database

Measurement E195M16

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+ Λ
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 -0.0009 0.12068
-0.88 0.04131 0.03873
-0.8 -0.01035 0.03147
-0.72 -0.01862 0.03046
-0.64 -0.03102 0.0304
-0.56 -0.06051 0.03102
-0.48 -0.02231 0.03158
-0.4 -0.00328 0.03139
-0.32 -0.02523 0.03132
-0.24 -0.0072 0.03077
-0.16 0.02038 0.02988
-0.08 -0.01688 0.02944
0.0 -0.06884 0.0284
0.08 -0.05705 0.02743
0.16 -0.04053 0.02683
0.24 0.00355 0.02589
0.32 -0.02399 0.02496
0.4 -0.01352 0.02314
0.48 0.00697 0.02172
0.56 -0.05329 0.02016
0.64 0.00332 0.01935
0.72 0.03263 0.01873
0.8 0.01969 0.01877
0.88 0.06314 0.02075
0.96 0.09422 0.02515