Singling out SO (10) GUT models using recent PTA results
In this work, we construct promising model-building routes towards SO (10) grand unified
theory inflation and examine their ability to explain the recent pulsar timing arrays (PTAs) …
theory inflation and examine their ability to explain the recent pulsar timing arrays (PTAs) …
Superheavy quasistable strings and walls bounded by strings in the light of NANOGrav 15 year data
Composite topological structures such as superheavy “quasistable strings”(QSS) and “walls
bounded by strings”(WBS) arise in realistic extensions of the Standard Model of high energy …
bounded by strings”(WBS) arise in realistic extensions of the Standard Model of high energy …
Gravitational waves from metastable cosmic strings in the Pati-Salam model in light of new pulsar timing array data
A series of pulsar timing arrays (PTAs) recently observed gravitational waves at the
nanohertz frequencies. Motivated by this remarkable result, we present a novel class of Pati …
nanohertz frequencies. Motivated by this remarkable result, we present a novel class of Pati …
Inflation, superheavy metastable strings and gravitational waves in non-supersymmetric flipped SU (5)
Motivated by the NANOGrav 15 year data and other recent investigations of stochastic
gravitational background radiation based on pulsar timing arrays, we show how superheavy …
gravitational background radiation based on pulsar timing arrays, we show how superheavy …
Supersymmetric U (1) BL flat direction and NANOGrav 15 year data
R Maji, W Park - Journal of Cosmology and Astroparticle Physics, 2024 - iopscience.iop.org
We show that, when connected with monopoles, the flat D-flat direction breaking the local U
(1) BL symmetry as an extension of the minimal supersymmetric standard model can be …
(1) BL symmetry as an extension of the minimal supersymmetric standard model can be …
Probing stochastic gravitational wave background from SU (5)× U (1) χ strings in light of NANOGrav 15-year data
A realistic model of SU (5)× U (1) χ, embedded in SO (10) supersymmetric grand unified
theory, is investigated for the emergence of a metastable cosmic string network. This …
theory, is investigated for the emergence of a metastable cosmic string network. This …
PeV-Scale SUSY and Cosmic Strings from F-term Hybrid Inflation
C Pallis - Universe, 2024 - mdpi.com
We consider F-term hybrid inflation (FHI) and SUSY breaking in the context of a B− L
extension of the MSSM that largely respects a global U (1) R symmetry. The hidden sector …
extension of the MSSM that largely respects a global U (1) R symmetry. The hidden sector …
String-wall composites winding around a torus knot vacuum in an axionlike model
We study a simple axionlike model with a charged scalar ϕ and a double-charged scalar ζ of
global U (1) symmetry. A particular feature of our model is that a vacuum manifold is a torus …
global U (1) symmetry. A particular feature of our model is that a vacuum manifold is a torus …
Gravitational waves from domain wall collapses and dark matter in the SM with a complex scalar field
HT Pham, E Senaha - Physical Review D, 2024 - APS
We study a domain wall induced by spontaneously broken Z 2 symmetry and its gravitational
wave signature in the standard model with a complex scalar in connection with dark matter …
wave signature in the standard model with a complex scalar in connection with dark matter …
Kinetic mixing, proton decay and gravitational waves in SO (10)
A bstract We present an SO (10) model in which a dimension five operator induces kinetic
mixing at the GUT scale between the abelian subgroups U (1) B− L and U (1) R. We discuss …
mixing at the GUT scale between the abelian subgroups U (1) B− L and U (1) R. We discuss …