CLAS Physics Database

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Measurement E195M29

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′_x vs. Q² (integrated over W, cos(θ_K^c.m.))
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): Q², GeV²

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

Measured data:

Q², GeV²	P′_x	Data errors	Systematic errors
0.35	0.01393	0.04133	0.05068
0.45	-0.04336	0.04265	0.04823
0.55	0.01658	0.04799	0.04927
0.65	0.10915	0.05383	0.04988
0.75	0.01869	0.05962	0.05196
0.85	0.16944	0.06642	0.05361
0.95	0.02201	0.07347	0.05603
1.05	0.00242	0.08186	0.05753
1.15	-0.00061	0.08965	0.05795
1.25	-0.15459	0.09936	0.05927
1.35	0.02588	0.10865	0.05993
1.45	0.00173	0.11923	0.06157
1.6	0.21528	0.09525	0.06107
1.8	-0.05717	0.11485	0.06226
2	0.23916	0.13428	0.05876
2.2	0.43372	0.16018	0.06086
2.4	0.61285	0.18661	0.06114
2.65	0.12555	0.18303	0.06203
2.95	-0.18009	0.22479	0.06452
3.3	0.90306	0.27061	0.07561