Radiative gluon effects in massive quark-antiquark production in collisions of positrons and polarized electrons at theZ0resonance

1995 ◽  
Vol 52 (3) ◽  
pp. 1359-1368 ◽  
Author(s):  
John B. Stav ◽  
Haakon A. Olsen
Keyword(s):  
Massive Quark ◽  
Polarized Electrons

SURFACE AND THIN FILM MAGNETISM WITH SPIN POLARIZED ELECTRONS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-9-C8-16 ◽  
Author(s):  
H. C. Siegmann ◽  
D. Mauri ◽  
D. Scholl ◽  
E. Kay
Keyword(s):  
Thin Film ◽  
Polarized Electrons ◽  
Spin Polarized ◽  
Thin Film Magnetism

Spin dependence in compton scattering by polarized electrons

1970 ◽  
Vol 4 (12) ◽  
pp. 525-528 ◽  
Author(s):  
P. Christillin ◽  
E. Remiddi
Keyword(s):  
Compton Scattering ◽  
Spin Dependence ◽  
Polarized Electrons

scholarly journals Ultrafast non-excitonic valley Hall effect in MoS2/WTe2 heterobilayers

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jekwan Lee ◽  
Wonhyeok Heo ◽  
Myungjun Cha ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantitative Information ◽  
Exciton Energy ◽  
Electron Hole ◽  
Kerr Rotation ◽  
Polarized Electrons ◽  
Spatially Resolved ◽  
Long Valley ◽  
Bound Electron ◽  
Valley Hall Effect

AbstractThe valley Hall effect (VHE) in two-dimensional (2D) van der Waals (vdW) crystals is a promising approach to study the valley pseudospin. Most experiments so far have used bound electron-hole pairs (excitons) through local photoexcitation. However, the valley depolarization of such excitons is fast, so that several challenges remain to be resolved. We address this issue by exploiting a unipolar VHE using a heterobilayer made of monolayer MoS2/WTe2 to exhibit a long valley-polarized lifetime due to the absence of electron-hole exchange interaction. The unipolar VHE is manifested by reduced photoluminescence at the MoS2 A exciton energy. Furthermore, we provide quantitative information on the time-dependent valley Hall dynamics by performing the spatially-resolved ultrafast Kerr-rotation microscopy; we find that the valley-polarized electrons persist for more than 4 nanoseconds and the valley Hall mobility exceeds 4.49 × 103 cm2/Vs, which is orders of magnitude larger than previous reports.

scholarly journals Searching for Z′ bosons at the P2 experiment

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
P. S. Bhupal Dev ◽  
Werner Rodejohann ◽  
Xun-Jie Xu ◽  
Yongchao Zhang
Keyword(s):  
Parity Violation ◽  
Z Bosons ◽  
Gauge Coupling ◽  
New Physics ◽  
Polarized Electrons ◽  
Mixing Angles ◽  
Charge Assignment ◽  
Wide Range ◽  
Discovery Potential ◽  
Left And Right

Abstract The P2 experiment aims at high-precision measurements of the parity-violating asymmetry in elastic electron-proton and electron-12C scatterings with longitudinally polarized electrons. We discuss here the sensitivity of P2 to new physics mediated by an additional neutral gauge boson Z′ of a new U(1)′ gauge symmetry. If the charge assignment of the U(1)′ is chiral, i.e., left- and right-handed fermions have different charges under U(1)′, additional parity-violation is induced directly. On the other hand, if the U(1)′ has a non-chiral charge assignment, additional parity-violation can be induced via mass or kinetic Z-Z′ mixing. By comparing the P2 sensitivity to existing constraints, we show that in both cases P2 has discovery potential over a wide range of Z′ mass. In particular, for chiral models, the P2 experiment can probe gauge couplings at the order of 10−5 when the Z′ boson is light, and heavy Z′ bosons up to 79 (90) TeV in the proton (12C) mode. For non-chiral models with mass mixing, the P2 experiment is sensitive to mass mixing angles smaller than roughly 10−4, depending on model details and gauge coupling magnitude.

scholarly journals Spin-Polarized Electrons from Autoionizing Transitions in Thallium

1975 ◽  
Vol 34 (11) ◽  
pp. 710-710 ◽  
Author(s):  
U. Heinzmann ◽  
H. Heuer ◽  
J. Kessler
Keyword(s):  
Polarized Electrons ◽  
Spin Polarized

Left-right asymmetry in superelastic collisions of polarized electrons with unpolarized laser-excited sodium atoms

1990 ◽  
Vol 16 (4) ◽  
pp. 261-269 ◽  
Author(s):  
V. Nickich ◽  
T. Hegemann ◽  
M. Bartsch ◽  
G. F. Hanne
Keyword(s):  
Polarized Electrons ◽  
Sodium Atoms ◽  
Left Right Asymmetry
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