CLAS Physics Database

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Measurement E195M35

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′_z 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′_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): Q², GeV²

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

Measured data:

Q², GeV²	P′_z	Stat. error	Syst. error
0.35	-0.01922	0.04299	0.05068
0.45	-0.06373	0.04461	0.04823
0.55	-0.03503	0.05062	0.04927
0.65	-0.15643	0.05678	0.04988
0.75	-0.00208	0.06336	0.05196
0.85	0.01644	0.07001	0.05361
0.95	-0.15668	0.07752	0.05603
1.05	0.04075	0.08572	0.05753
1.15	0.00557	0.09489	0.05795
1.25	-0.22602	0.10449	0.05927
1.35	-0.50709	0.1152	0.05993
1.45	-0.3256	0.12616	0.06157
1.6	-0.41596	0.10129	0.06107
1.8	-0.10709	0.12163	0.06226
2	-0.38599	0.14381	0.05876
2.2	-0.34611	0.17037	0.06086
2.4	-0.57164	0.19805	0.06114
2.65	-0.53061	0.19716	0.06203
2.95	-0.39062	0.24494	0.06452
3.3	-0.55088	0.29016	0.07561