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Black Holes with Electroweak Hair.
Phys Rev Lett
October 2024
Institut Denis Poisson, UMR-CNRS 7013, Université de Tours, Parc de Grandmont, 37200 Tours, France.
We construct static and axially symmetric magnetically charged hairy black holes in the gravity-coupled Weinberg-Salam theory. Large black holes merge with the Reissner-Nordström (RN) family, while the small ones are extremal and support a hair in the form of a ring-shaped electroweak condensate carrying superconducting W currents and up to 22% of the total magnetic charge. The extremal solutions are asymptotically RN with a mass below the total charge, M<|Q|, due to the negative Zeeman energy of the condensate interacting with the black hole magnetic field.
View Article and Find Full Text PDFPhase Structure of Electroweak Vacuum in a Strong Magnetic Field: The Lattice Results.
Phys Rev Lett
March 2023
Pacific Quantum Center, Far Eastern Federal University, 690950 Vladivostok, Russia.
Using first-principle lattice simulations, we demonstrate that in the background of a strong magnetic field (around 10^{20} T), the electroweak sector of the vacuum experiences two consecutive crossover transitions associated with dramatic changes in the zero-temperature dynamics of the vector W bosons and the scalar Higgs particles, respectively. Above the first crossover, we observe the appearance of large, inhomogeneous structures consistent with a classical picture of the formation of W and Z condensates pierced by vortices. The presence of the W and Z condensates supports the emergence of the exotic superconducting and superfluid properties induced by a strong magnetic field in the vacuum.
View Article and Find Full Text PDFCorrelating gravitational waves with W-boson mass, FIMP dark matter, and Majorana seesaw mechanism.
Sci Bull (Beijing)
July 2022
Department of Physics, Yantai University, Yantai 264005, China. Electronic address:
We study a minimal extension of the standard model by introducing three right-handed neutrinos and a new scotogenic scalar doublet, in which the mass splittings between neutral and charged components are responsible for the W-boson mass newly measured by the CDF Collaboration. This model can not only generate non-vanishing Majorana neutrino masses via the interaction of right-handed neutrinos and scotogenic scalars, but also explain the Universe's missing matter in the form of FIMP dark matter. We also study the influence of the mass splitting on the first order electroweak phase transition, and find that it can further enhance the transition strength and thus induce gravitational waves during the phase transition, which may be detected in the forthcoming detectors such as U-DECIGO.
View Article and Find Full Text PDFDetermination of the ^{27}Al Neutron Distribution Radius from a Parity-Violating Electron Scattering Measurement.
Phys Rev Lett
April 2022
Indiana University, Bloomington, Indiana 47405, USA.
We report the first measurement of the parity-violating elastic electron scattering asymmetry on ^{27}Al. The ^{27}Al elastic asymmetry is A_{PV}=2.16±0.
View Article and Find Full Text PDFSU(2/1) superchiral self-duality: a new quantum, algebraic and geometric paradigm to describe the electroweak interactions.
J High Energy Phys
April 2021
School of Natural Sciences (Mathematics and Physics), University of Tasmania, Private Bag 37, Hobart, Tasmania 7001, Australia.
We propose an extension of the Yang-Mills paradigm from Lie algebras to internal chiral superalgebras. We replace the Lie algebra-valued connection one-form , by a superalgebra-valued polyform mixing exterior-forms of all degrees and satisfying the chiral self-duality condition , where denotes the superalgebra grading operator. This superconnection contains Yang-Mills vectors valued in the even Lie subalgebra, together with scalars and self-dual tensors valued in the odd module, all coupling only to the charge parity CP-positive Fermions.
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