162 citations · 1.2k across the 52 of their papers we have counts for
7 papers · 1 filter
Gravitational wave emission from metastable current-carrying strings in
Adeela Afzal, Qaisar Shafi, Amit Tiwari
We discuss based extensions of the Standard Model (SM) containing two varieties of superheavy metastable cosmic strings (CSs) that respectively have neutral and electrically…
Muon and dark matter in Supersymmetric
Qaisar Shafi, Amit Tiwari, Cem Salih Un
The latest FermiLab muon result shows a discrepancy with a ``widely advertised" Standard Model prediction. We consider a supersymmetric $SU(4)_c \times SU(2)_L \times SU…
Inflation, superheavy metastable strings and gravitational waves in non-supersymmetric flipped SU(5)
George Lazarides, Rinku Maji, Ahmad Moursy +1
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 string…
Standard Model Higgs inflation supplemented by minimal dark matter
Shinsuke Kawai, Nobuchika Okada, Qaisar Shafi
Renormalisation group analysis with the present measurements of the top quark mass GeV indicates that the Standard Model (SM) Higgs potential becomes unstabl…
Gravitational waves from walls bounded by strings in model of pseudo-Goldstone dark matter
Rinku Maji, Wan-Il Park, Qaisar Shafi
We explore the gravitational wave spectrum generated by string-wall structures in an () based scenario of pseudo-Goldstone boson dark matter (pGDM) particle. Thi…
Third family quasi-Yukawa unification: Higgsino dark matter, NLSP gluino and all that
Qaisar Shafi, Amit Tiwari, Cem Salih Un
We explore the implications of third family () quasi-Yukawa unification (QYU) for collider and dark matter (DM) searches within the framework of a supersymmetric $SU(4)_c \t…
Composite Topological Structures in SO(10)
George Lazarides, Qaisar Shafi, Amit Tiwari
We explore a variety of composite topological structures that arise from the spontaneous breaking of to via one of its maximal subgroups $SU(5)…