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Related papers: More about neutron - mirror neutron oscillation

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Selfsimilarity relations for torsional oscillation frequencies of neutron star crust are discussed. For any neutron star model, the frequencies of fundamental torsional oscillations (with no nodes of radial wave function, i.e. at n=0, and…

Solar and Stellar Astrophysics · Physics 2023-01-13 D. G. Yakovlev

We consider an SU(3)'_c\times SU(2)'_L\times U(1)'_Y mirror sector where the field content and dimensionless couplings are a copy of the SU(3)_c\times SU(2)_L\times U(1)_Y ordinary sector. Our model also contains three gauge-singlet…

High Energy Physics - Phenomenology · Physics 2015-06-15 Pei-Hong Gu

This work estimates the probability of $\mu$ to $e$ neutrino oscillation with two sterile neutrinos using a 5x5 U-matrix, an extension of the previous estimate with one sterile neutrino and a 4x4 U-matrix. The sterile neutrino-active…

High Energy Physics - Phenomenology · Physics 2016-06-29 Leonard S. Kisslinger

In a previous paper, we reported simulations of the evolution of the magnetic field in neutron star cores through ambipolar diffusion, taking the neutrons as a motionless uniform background. However, in real neutron stars, neutrons are free…

High Energy Astrophysical Phenomena · Physics 2020-09-02 F. Castillo , A. Reisenegger , J. A. Valdivia

The neutron is electrically neutral, but its substructure consists of charged quarks so it may have an internal charge distribution. In fact it is known to have a negative mean square charge radius (MSCR), the second moment of the radial…

Nuclear Experiment · Physics 2009-11-11 F. E. Wietfeldt , M. Huber , T. C. Black , H. Kaiser , M. Arif , D. L. Jacobson , S. A. Werner

We describe an experimental installation for a new test of the weak equivalence principle for neutron. The device is a sensitive gravitational spectrometer for ultra-cold neutrons allowing to precisely compare the gain in kinetic energy of…

Instrumentation and Detectors · Physics 2015-12-09 G. V. Kulin , A. I. Frank , S. V. Goryunov , D. V. Kustov , P. Geltenbort , M. Jentschel , A. N. Strepetov , V. A. Bushuev

We derive the character of neutrino oscillations that results from a model of equivalence principle violation suggested recently by Damour and Polyakov as a plausible consequence of string theory. In this model neutrino oscillations will…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Halprin , C. N. Leung

The CKM matrix and its unitarity is analyzed by disentangling experimental information obtained from three different particle systems of neutrons, mesons, and nuclei. New physics beyond the Standard Model is supported under the new…

General Physics · Physics 2020-09-04 Wanpeng Tan

Spin-dependent short range interactions of free neutrons with matter may be searched for in various ways. This short note discusses pseudomagnetic precession of trapped ultracold neutrons in vicinity to bulk matter, which should be several…

Nuclear Experiment · Physics 2015-05-13 O. Zimmer

The recent neutrino oscillation experimental results indicate that at least one neutrino has a mass greater than 50 meV. The next generation of double-beta decay experiments will very likely have a sensitivity to an effective Majorana…

Nuclear Experiment · Physics 2011-07-19 Steven R. Elliott

A super-light sterile neutrino was proposed to explain the absence of the expected upturn of the survival probability of low energy solar boron neutrinos. This is because this super-light sterile neutrino can oscillate efficiently with…

High Energy Physics - Phenomenology · Physics 2015-06-19 Wei Liao , Yuchen Luo , Xiao-Hong Wu

We show that the neutrino chirality flip, that can take place in the core of a neutron star at birth, is an efficient process to allow neutrinos to anisotropically escape, thus providing a to induce the neutron star kick velocities. The…

High Energy Astrophysical Phenomena · Physics 2021-06-24 Alejandro Ayala , Santiago Bernal Langarica , S. Hernández-Ortiz , L. A. Hernández , D. Manreza-Paret

The neutron drop is firstly investigated in an axially symmetric harmonic oscillator (ASHO) field, whose potential strengths of different directions can be controlled artificially. The shape of the neutron drop will change from spherical to…

Nuclear Theory · Physics 2021-07-14 Xiaohan Ding , Jinniu Hu , Ying Zhang , Hong Shen

Experimental observation of nucleon instability is one of the missing key components required for the explanation of baryon asymmetry of the universe. Proton decays with the modes and rates predicted by(B-L)-conserving schemes of Grand…

High Energy Physics - Experiment · Physics 2007-05-23 Yuri Kamyshkov

The recent global fit of short baseline neutrino oscillation data favors the presence of one (or more) sterile neutrino state which leads to new mass splitting \Delta m^2 ~1 eV^2. We consider the effect of this new states on the evolution…

High Energy Physics - Phenomenology · Physics 2012-07-02 Arman Esmaili , Orlando L. G. Peres

This paper is the first in a series aimed at understanding the long-term evolution of neutron star magnetic fields. We model the stellar matter as an electrically neutral and lightly ionized plasma composed of three moving particle species:…

Astrophysics · Physics 2009-11-13 J. Hoyos , A. Reisenegger , J. A. Valdivia

To determine the frequencies of magnetic oscillations in neutron stars with highly tangled magnetic fields, we derive the perturbation equations. We assume that the field strength of the global magnetic structure is so small that such…

High Energy Astrophysical Phenomena · Physics 2015-11-18 Hajime Sotani

Given the lack of empirical evidence of weakly interacting dark matter, it is reasonable to look to other candidates such as a confining dark sector with a similar number of particles as the standard model. Twin Higgs mirror matter is one…

Gravitational redshifts of neutron stars have a theoretical upper limit of z=0.62. Also, it is generally believed that neutron stars have magnetic fields on the order of ten to the twelfth to ten to the thirteenth G. A previously predicted…

General Relativity and Quantum Cosmology · Physics 2007-05-23 David Apsel

Based on a newly proposed mirror-matter model of neutron-mirror neutron ($n-n'$) oscillations, the puzzles related to ultrahigh-energy cosmic rays (UHECRs) are explained. In particular, the phenomena around the Greisen-Zatsepin-Kuzmin (GZK)…

High Energy Astrophysical Phenomena · Physics 2020-06-23 Wanpeng Tan