CLAS Physics Database

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Measurement E195M28

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′_x vs. cos(θ_K^c.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

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

Quantity measured: P′_x,
x projection of beam-recoil transferred polarization P′ in (x,y,z) system
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: K⁺ Σ⁰, polarization: polarized

Q² :	0.3 — 3.5 GeV²
W :	1.6 — 2.4 GeV
E_beam :	6.535 GeV

Observable quantity measured (Y axis): P′_x,
Plot measurement data

Parameter (X axis): cos(θ_K^c.m.),

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ_K^c.m.)	P′_x	Data errors	Systematic errors
-0.96	1	0.44706	0.1026
-0.88	0.00383	0.12458	0.07999
-0.8	-0.02424	0.10495	0.07832
-0.72	-0.1018	0.10291	0.07803
-0.64	0.06155	0.09788	0.07156
-0.56	0.25855	0.09596	0.06939
-0.48	0.19933	0.09386	0.06494
-0.4	0.056	0.09088	0.06094
-0.32	-0.01394	0.0876	0.05746
-0.24	0.02886	0.08495	0.05464
-0.16	0.0279	0.08245	0.05367
-0.08	-0.22557	0.08063	0.05407
0	-0.02809	0.07923	0.05391
0.08	0.03327	0.07705	0.05223
0.16	0.03891	0.07673	0.05132
0.24	-0.00234	0.07491	0.04816
0.32	0.10879	0.07227	0.0435
0.4	0.12306	0.07021	0.03945
0.48	0.00865	0.06914	0.03651
0.56	0.11166	0.06838	0.03488
0.64	0.01469	0.0689	0.03528
0.72	-0.10934	0.07159	0.03911
0.8	0.18807	0.07925	0.04434
0.88	0.27519	0.10206	0.05804
0.96	0.03745	0.14243	0.08008