Measurement E195M19
| Experiment: | CLAS12 RG-K | |
|---|---|---|
| Year: | 2022 | |
| Spokesperson: | Daniel S. Carman | |
| Reaction: | ep → K+ Λ | |
| Polarization: | final | |
| Quantity: | P′z′ | |
| 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
|
|
| cos(θKc.m.) | P′z′ | uncertainty | syst. uncert. |
|---|---|---|---|
| -0.96 | -0.20036 | 0.11867 | 0.02439 |
| -0.88 | -0.21989 | 0.03912 | 0.02265 |
| -0.8 | -0.1874 | 0.03121 | 0.02008 |
| -0.72 | -0.0963 | 0.02983 | 0.0189 |
| -0.64 | -0.01628 | 0.03028 | 0.01943 |
| -0.56 | -0.01307 | 0.0309 | 0.01973 |
| -0.48 | 0.03665 | 0.03066 | 0.02013 |
| -0.4 | 0.01562 | 0.03089 | 0.02046 |
| -0.32 | 0.02058 | 0.03095 | 0.02071 |
| -0.24 | 0.01854 | 0.03003 | 0.02109 |
| -0.16 | 0.09751 | 0.02894 | 0.02035 |
| -0.08 | 0.0454 | 0.02868 | 0.02172 |
| 0.0 | 0.13863 | 0.02797 | 0.02068 |
| 0.08 | 0.06037 | 0.02664 | 0.01956 |
| 0.16 | 0.133 | 0.0258 | 0.01914 |
| 0.24 | 0.12033 | 0.02484 | 0.01827 |
| 0.32 | 0.13677 | 0.02394 | 0.01776 |
| 0.4 | 0.10679 | 0.02225 | 0.01646 |
| 0.48 | 0.10365 | 0.02084 | 0.01574 |
| 0.56 | 0.13716 | 0.01951 | 0.01544 |
| 0.64 | 0.14995 | 0.01856 | 0.01511 |
| 0.72 | 0.16665 | 0.01801 | 0.01532 |
| 0.8 | 0.18498 | 0.01823 | 0.01537 |
| 0.88 | 0.2246 | 0.02055 | 0.0158 |
| 0.96 | 0.33817 | 0.02675 | 0.01697 |
Measurement comment:
Coordinate system:
(x′,y′,z′), z′ along K+, y′ normal to hadronic plane, x′=y′ x z′