121 citations · 637 across the 24 of their papers we have counts for
25 papers
Xenon Isotope Filtering at the Kinematic Edge of Inelastic Dark Matter
Waqas Ahmed, Ammara Ahmad, Mansoor Ur Rehman
Motivated by high-energy xenon recoil searches, we study isotope-dependent endothermic dark-matter scattering near the upper speed boundary of a truncated Galactic halo. Small diff…
Magnetic Monopole Phenomenology at Future Hadron Colliders
Ijaz Ahmed, Sidra Swalheen, Mansoor Ur Rehman +1
In the grand tapestry of Physics, the magnetic monopole is a holy grail. Therefore, numerous efforts are underway in search of this hypothetical particle at CMS, ATLAS and MoEDAL e…
Inflation, Proton Decay and Gravitational Waves from Metastable Strings in Model
Waqas Ahmed, Maria Mehmood, Mansoor Ur Rehman +1
We present a realistic supersymmetric -hybrid inflation model within the framework of gauge symmetry, wherein the symmetry breaking $SU(4)…
Exploring primordial black holes and gravitational waves with R-symmetric GUT Higgs inflation
Nadir Ijaz, Mansoor Ur Rehman
This study investigates the realization of R-symmetric Higgs inflation within the framework of no-scale-like supergravity, aiming to elucidate the formation of primordial black hol…
New Inflation in Waterfall Region
Niamat Ullah Khan, Nadir Ijaz, Mansoor Ur Rehman
We introduce a class of new inflation models within the waterfall region of a generalized hybrid inflation framework. The initial conditions are generated in the valley of hybrid p…
Probing Stochastic Gravitational Wave Background from Strings in Light of NANOGrav 15-Year Data
Waqas Ahmed, Mansoor Ur Rehman, Umer Zubair
A realistic model of , embedded in supersymmetric grand unified theory, is investigated for the emergence of a metastable cosmic string network. This…
The Stochastic Gravitational-Wave Background from Primordial Black Holes in R-Symmetric Inflation
Nadir Ijaz, Maria Mehmood, Mansoor Ur Rehman
This study explores the realization of nonminimally coupled Higgs inflation in the context of no-scale supergravity, investigates the formation of primordial black holes, and exami…
Supersymmetric hybrid inflation and current-carrying metastable cosmic strings in
Adeela Afzal, Maria Mehmood, Mansoor Ur Rehman +1
We construct a realistic supersymmetric model for superheavy metastable cosmic strings (CSs) that can be investigated in the current pulsar timing array (PTA) experiments. It is ba…
Observable proton decay and gauge coupling unification in the improved missing doublet SU(5) model
Maria Mehmood, Mansoor Ur Rehman
We investigate the possibility of observable proton decay within the improved missing doublet model (IMDM75), which utilizes a Higgs in 75 representation for gauge symmetry…
-hybrid Inflation, Gravitino Dark Matter and Stochastic Gravitational Wave Background from Cosmic Strings
Adeela Afzal, Waqas Ahmed, Mansoor Ur Rehman +1
We present a successful realization of supersymmetric -hybrid inflation model based on a gauged extension of the minimal supersymmetric standard model, with the sof…
Sneutrino Tribrid Inflation, Metastable Cosmic Strings and Gravitational Waves
Muhammad Atif Masoud, Mansoor Ur Rehman, Qaisar Shafi
We present a successful realization of sneutrino tribrid inflation model based on a gauged extension of Minimal Supersymmetric Standard Model (MSSM). A single interact…
-Hybrid Inflation with Low Reheat Temperature and Observable Gravity Waves
Mansoor Ur Rehman, Qaisar Shafi, Fariha K. Vardag
In -hybrid inflation a nonzero inflaton vacuum expectation value induced by supersymmetry breaking is proportional to the gravitino mass , which can be exploited to res…
Quantum Smearing in Hybrid Inflation with Chaotic Potentials
Waqas Ahmed, Ommair Ishaque, Mansoor Ur Rehman
We study the impact of one-loop radiative corrections in a non-supersymmetric model of hybrid inflation with chaotic (polynomial-like) potential, . These corrections…
Simplified Smooth Hybrid Inflation in Supersymmetric SU(5)
Mansoor Ur Rehman, Umer Zubair
A scheme of simplified smooth hybrid inflation is realized in the framework of supersymmetric . The smooth model of hybrid inflation provides a natural solution to the monop…
-Symmetry Breaking in Supersymmetric Hybrid Inflation
Matthew Civiletti, Mansoor Ur Rehman, Eric Sabo +2
We consider a supersymmetric hybrid inflation scenario in which the U(1) -symmetry is explicitly broken by Planck scale suppressed operators in the superpotential. We provide an…
Pseudosmooth Tribrid Inflation
Stefan Antusch, David Nolde, Mansoor Ur Rehman
We explore a new class of supersymmetric models of inflation where the inflaton is realised as a combination of a Higgs field and (gauge non-singlet) matter fields, using a "tribri…
Simplified Smooth Inflation with Observable Gravity Waves
Mansoor Ur Rehman, Qaisar Shafi
We consider a simplified version of supersymmetric smooth hybrid inflation which contains a single ultraviolet cutoff m_P = 2.4 x 10^{18} GeV, instead of the two cutoffs m_P and M_…
Red Spectral Tilt and Observable Gravity Waves in Shifted Hybrid Inflation
Matthew Civiletti, Mansoor Ur Rehman, Qaisar Shafi +1
We consider supersymmetric shifted hybrid inflation models with a red tilted scalar spectral index n_s in agreement with the WMAP 7-yr central value. If non-minimal supergravity co…
Non-Minimal B-L Inflation with Observable Gravity Waves
Nobuchika Okada, Mansoor Ur Rehman, Qaisar Shafi
We consider non-minimal λϕ^4 inflation in a gauged non-supersymmetric U(1)_{B-L} model containing the gravitational coupling ξ\mathcal{R} Φ^\dagger Φ, where \mathcal{R} denotes the…
Tensor to Scalar Ratio in Non-Minimal Inflation
Nobuchika Okada, Mansoor Ur Rehman, Qaisar Shafi
We reconsider non-minimal λϕ^4 chaotic inflation which includes the gravitational coupling term ξ\mathcal{R} ϕ^2, where ϕdenotes a gauge singlet inflaton field and \mathcal{R} is t…
Higgs Inflation, Quantum Smearing and the Tensor to Scalar Ratio
Mansoor Ur Rehman, Qaisar Shafi
In cosmic inflation driven by a scalar gauge singlet field with a tree level Higgs potential, the scalar to tensor ratio r is estimated to be larger than 0.036, provided the scalar…
Minimal Supersymmetric Hybrid Inflation, Flipped SU(5) and Proton Decay
Mansoor Ur Rehman, Qaisar Shafi, Joshua R. Wickman
Minimal supersymmetric hybrid inflation utilizes a canonical Kahler potential and a renormalizable superpotential which is uniquely determined by imposing a U(1) R-symmetry. In com…
Running Standard Model Inflation And Type I Seesaw
Nobuchika Okada, Mansoor Ur Rehman, Qaisar Shafi
Several authors have recently argued that a satisfactory inflationary scenario can be implemented in the Standard Model (SM) by introducing a strong non-minimal coupling of the Hig…
Supersymmetric Hybrid Inflation Redux
Mansoor Ur Rehman, Qaisar Shafi, Joshua R. Wickman
We discuss the important role played during inflation by one of the soft supersymmetry breaking terms in the inflationary potential of supersymmetric hybrid inflation models. With…