Results 71 to 80 of about 1,091 (122)

Axion framework with color-mediated Dirac neutrino masses

Physics Letters B
We propose a KSVZ-type axion framework in which vector-like quarks (VLQ) and colored scalars generate Dirac neutrino masses radiatively. The global Peccei-Quinn symmetry (under which the exotic fermions are charged) addresses the strong CP problem and ...
A. Batra, H.B. Câmara, F.R. Joaquim, N. Nath, R. Srivastava, J.W.F. Valle   +5 more
doaj   +1 more source

Erratum to: Operation of a ferromagnetic axion haloscope at $${ m}_{a}=58\,\upmu \hbox {eV}$$ ma=58μeV

European Physical Journal C: Particles and Fields, 2018
The original version of this article unfortunately contained a mistake.
N. Crescini, D. Alesini, C. Braggio, G. Carugno, D. Di Gioacchino, C. S. Gallo, U. Gambardella, C. Gatti, G. Iannone, G. Lamanna, C. Ligi, A. Lombardi, A. Ortolan, S. Pagano, R. Pengo, G. Ruoso, C. C. Speake, L. Taffarello   +17 more
doaj   +1 more source

Axion Production from Landau Quantization in the Strong Magnetic Field of Magnetars

, 2017
We utilize an exact quantum calculation to explore axion emission from electrons and protons in the presence of the strong magnetic field of magnetars. The axion is emitted via transitions between the Landau levels generated by the strong magnetic field.
Balantekin, A. Baha, Cheoun, Myung-Ki, Kajino, Toshitaka, Maruyama, Tomoyuki, Mathews, Grant J.   +4 more
core   +1 more source

Resonant Landau-Zener conversion in multi-axion systems

Journal of High Energy Physics
Multiple axions may emerge in the low-energy effective theory of Nature. Generically, the potentials describing these axion fields are non-diagonal, leading to mass mixing between axion states which can be temperature-dependent due to QCD instanton ...
David I. Dunsky, Claudio Andrea Manzari, Pablo Quílez, Maria Ramos, Philip Sørensen   +4 more
doaj   +1 more source

Building instructions for a ferromagnetic axion haloscope

The European Physical Journal Plus, 2022
A ferromagnetic haloscope is a rf spin-magnetometer used for searching Dark Matter in the form of axions. A magnetic material is monitored searching for anomalous magnetization oscillations which can be induced by dark matter axions. To properly devise such instrument one first needs to understand the features of the searched-for signal, namely the ...
openaire   +3 more sources

Axion dark matter searches above 1 μeV

Nuclear Physics B
The particle nature of dark matter is an outstanding mystery at the intersection of particle physics and cosmology. The axion, originally proposed to explain a purely particle physics problem, is one of the most compelling candidates for dark matter.
Gray Rybka
doaj   +1 more source

Light scalars coupled to photons and non-newtonian forces

, 2006
A particle $\phi$ coupling to two photons couples also to charged particles, like protons, through a loop. If the particle is a light scalar this induced coupling to protons leads to non-newtonian forces.
Dupays, Arnaud, Masso', Eduard, Redondo, Javier, Rizzo, Carlo   +3 more
core   +2 more sources

Search for axions in streaming dark matter

, 2017
A new search strategy for the detection of the elusive dark matter (DM) axion is proposed. The idea is based on streaming DM axions, whose flux might get temporally enormously enhanced due to gravitational lensing.
Anastassopoulos, V., Bertolucci, S., Cantatore, G., Cetin, S. A., Fischer, H., Funk, W., Gardikiotis, A., Hoffmann, D. H. H., Hofmann, S., Karuza, M., Maroudas, M., Semertzidis, Y. K., Tkatchev, I., Zioutas, K.   +13 more
core  

Beehive haloscope for high-mass axion dark matter

Physical Review D
We propose a new haloscope geometry that can arbitrarily increase the resonator volume for a given target axion mass. This geometry consists of closely packed, overlapping coaxial cavities operating as a single resonator. While the resonant frequency is still determined by the dimensions of the individual “cells,” the strong interactions between the ...
Matthew O. Withers, Chao-Lin Kuo
openaire   +2 more sources

Approaching the Quantum Limit in Axion Detection at IBS-CAPP and IBS-DMAG

Physical Sciences Forum
We present the development of two complementary amplifier architectures for axion haloscope experiments, based on two types of Josephson Parametric Amplifiers (JPAs).
Sergey V. Uchaikin, Boris I. Ivanov, Arjan F. van Loo, Yasunobu Nakamura, MinSu Ko, Jinmyeong Kim, Saebyeok Ahn, Seonjeong Oh, Yannis K. Semertzidis, SungWoo Youn   +9 more
doaj   +1 more source