A5040952537- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Scientific Measurement and Uncertainty Evaluation
- Advanced NMR Techniques and Applications
- Fault Detection and Control Systems
- Sensor Technology and Measurement Systems
- Neutrino Physics Research
- Quantum Chromodynamics and Particle Interactions
- Crystallography and Radiation Phenomena
- Black Holes and Theoretical Physics
- Nuclear Physics and Applications
- History and advancements in chemistry
- Electron and X-Ray Spectroscopy Techniques
- Atomic and Molecular Physics
- Particle Accelerators and Free-Electron Lasers
Weizmann Institute of Science
1956-2023
Massachusetts Institute of Technology
1961
A bstract We discuss models of ultralight scalar Dark Matter (DM) with linear and quadratic couplings to the Standard Model (SM). In addition studying phenomenology interactions separately, we examine their interplay. review different experiments that can probe such present current expected future bounds on parameter space. particular, field solution presented in [A. Hees, O. Minazzoli, E. Savalle, Y. V. Stadnik P. Wolf, Phys.Rev.D 98 (2018) 6, 064051], extend it theories capture both...
The features of inelastic scattering leading to two-phonon nuclear surface vibrations have been examined in Born approximation. Comparison is made with recent experimental results alpha-particle experiments on spherical nuclei. Good agreement found between parameters derived from these and Coulomb excitation. This not surprising since the comparisons carried out a relatively model-independent way.
We present a mechanism that addresses the electroweak, strong CP, and flavor hierarchies of Standard Model (including neutrino masses) in unified way. The naturalness electroweak scale is solved together with CP problem by Nelson-Barr relaxion: relaxion field identified pseudo-Nambu-Goldstone boson an abelian symmetry no QCD anomaly. sector generates "rolling" potential vacuum expectation value at stopping point mapped to Cabibbo-Kobayashi-Maskawa phase. An accounts for Model's mass textures...
Cosmological relaxation models in which the relaxion is identified with QCD axion, generically fail to account for smallness of strong $CP$ phase. We present a simple alternative solution this ``relaxion problem'' based on Nelson-Barr mechanism. take be symmetry UV theory, and have no anomalous coupling QCD. The nonzero vacuum expectation value breaks spontaneously, resulting phase mapped Cabibbo-Kobayashi-Maskawa Standard Model. extended quark sector generates ``rolling'' potential...
A bstract We discuss composite UV completions of the Nelson-Barr(NB) solution to strong CP problem. In our construction, symmetry is broken spontaneously by dynamics a hidden QCD at θ = π . focus on minimal implementation NB where visible sector contains one extra pair vector-like up/down quarks. show that theory suffers from quality problem and how may resolve it. present simple calculable scheme, free problem, dynamical violation in mediated through scalar portal sector, which successfully...
We discuss models of ultralight scalar Dark Matter (DM) with linear and quadratic couplings to the Standard Model (SM). In addition studying phenomenology interactions separately, we examine their interplay. review different experiments that can probe such present current expected future bounds on parameter space. particular, field solution presented in [A. Hees, O. Minazzoli, E. Savalle, Y. V. Stadnik P. Wolf, Phys.Rev.D 98 (2018) 6, 064051], extend it theories capture both DM SM....