CLAS Physics Database

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Measurement E195M34

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′_z 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′_z,
z 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′_z,
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′_z	Stat. error	Syst. error
-0.96	1	0.45826	0.1026
-0.88	-0.14962	0.12682	0.07999
-0.8	-0.1758	0.1088	0.07832
-0.72	0.22724	0.10618	0.07803
-0.64	-0.10077	0.10014	0.07156
-0.56	-0.02482	0.0992	0.06939
-0.48	-0.04719	0.09618	0.06494
-0.4	0.20667	0.09372	0.06094
-0.32	0.19218	0.09041	0.05746
-0.24	-0.12634	0.0881	0.05464
-0.16	0.19022	0.08559	0.05367
-0.08	0.02324	0.08406	0.05407
0	-0.17696	0.08226	0.05391
0.08	0.09356	0.08061	0.05223
0.16	0.19892	0.07952	0.05132
0.24	-0.19062	0.07823	0.04816
0.32	-0.1812	0.07655	0.0435
0.4	-0.21218	0.07396	0.03945
0.48	-0.19936	0.07245	0.03651
0.56	-0.29524	0.07262	0.03488
0.64	-0.10672	0.07342	0.03528
0.72	-0.40674	0.07734	0.03911
0.8	-0.27038	0.08747	0.04434
0.88	-0.61361	0.11654	0.05804
0.96	-0.42142	0.18489	0.08008