scholarly journals Relaxing atomic parity violation constraints on new physics

1998 ◽  
Vol 57 (7) ◽  
pp. R3833-R3836 ◽  
Author(s):  
V. Barger ◽  
Kingman Cheung ◽  
D. P. Roy ◽  
D. Zeppenfeld
Keyword(s):  
Parity Violation ◽  
New Physics ◽  
Atomic Parity Violation

scholarly journals New physics constraints from atomic parity violation in Cs133

2021 ◽  
Vol 103 (11) ◽  
Author(s):  
B. K. Sahoo ◽  
B. P. Das ◽  
H. Spiesberger
Keyword(s):  
Parity Violation ◽  
New Physics ◽  
Atomic Parity Violation

Atomic parity violation as a probe of new physics

1990 ◽  
Vol 65 (24) ◽  
pp. 2963-2966 ◽  
Author(s):  
William J. Marciano ◽  
Jonathan L. Rosner
Keyword(s):  
Parity Violation ◽  
New Physics ◽  
Atomic Parity Violation

scholarly journals ATOMIC PARITY VIOLATION: PRINCIPLES, RECENT RESULTS, PRESENT MOTIVATIONS

2005 ◽  
Vol 20 (06) ◽  
pp. 375-389 ◽  
Author(s):  
J. GUÉNA ◽  
M. LINTZ ◽  
M.-A. BOUCHIAT
Keyword(s):  
Parity Violation ◽  
Precision Measurement ◽  
Calibration Procedure ◽  
New Physics ◽  
Stimulated Emission ◽  
Atomic Parity Violation ◽  
Weak Charge ◽  
The Status ◽  
Left Right Asymmetry

We review the progress made in the determination of the weak charge, QW, of the cesium nucleus which raises the status of Atomic Parity Violation measurements to that of a precision electroweak test. Not only is it necessary to have a precision measurement of the electroweak asymmetry in the highly forbidden 6S–7S transition, but one also needs a precise calibration procedure. The 1999 precision measurement by the Boulder group implied a 2.5 σ deviation of QW from the theoretical prediction. This triggered many particle physicist suggestions as well as examination by atomic theoretical physicists of several sources of corrections. After about three years, the disagreement was removed without appealing to "New Physics". Concurrently, an original experimental approach was developed in our group for more than a decade. It is based on detection by stimulated emission with amplification of the left–right asymmetry. We present our decisive, recent progress together with our latest results. We emphasize the important impact for electroweak theory, of future measurements in cesium possibly pushed to the 0.1% level. Other possible approaches are currently explored in several atoms.

scholarly journals New physics probes: Atomic parity violation, polarized electron scattering and neutrino-nucleus coherent scattering

2020 ◽  
Vol 959 ◽  
pp. 115158 ◽  
Author(s):  
Giorgio Arcadi ◽  
Manfred Lindner ◽  
Jessica Martins ◽  
Farinaldo S. Queiroz
Keyword(s):  
Electron Scattering ◽  
Parity Violation ◽  
Coherent Scattering ◽  
New Physics ◽  
Atomic Parity Violation

scholarly journals Dependence of atomic parity-violation effects on neutron skins and new physics

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
A. V. Viatkina ◽  
D. Antypas ◽  
M. G. Kozlov ◽  
D. Budker ◽  
V. V. Flambaum
Keyword(s):  
Parity Violation ◽  
New Physics ◽  
Atomic Parity Violation

Atomic Parity Violation as a Probe of New Physics

1992 ◽  
Vol 68 (6) ◽  
pp. 898-898 ◽  
Author(s):  
William J. Marciano ◽  
Jonathan L. Rosner
Keyword(s):  
Parity Violation ◽  
New Physics ◽  
Atomic Parity Violation

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.

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