61 citations · 471 across the 44 of their papers we have counts for
39 papers · 1 filter
Exploring dark -boson in future Large Hadron-electron collider
Ashok Goyal, Mukesh Kumar, Satendra Kumar +1
The interaction between the dark sector with the visible Standard Model (SM) sector takes place through the kinetic mixing between the dark photon field a…
Neutrino specific spin-3/2 dark matter
Ashok Goyal, Mohammed Omer Khojali, Mukesh Kumar +1
In this paper we consider a spin- dark matter (DM) particle coupled to neutrinos as a viable candidate to produce the observed DM relic density through the thermal fre…
Leptonic anomaly in an extended Higgs sector with vector-like leptons
Hrishabh Bharadwaj, Sukanta Dutta, Ashok Goyal
We address the observed discrepancies in the anomalous magnetic dipole moments (MDM) of the muon and electron by extending the inert two Higgs Doublet Model (2HDM) with SM gauge si…
Measuring nature of coupling at collider
Sukanta Dutta, Ashok Goyal, Mukesh Kumar +1
The proposed future collider provides sufficient energies to produce the Standard Model Higgs Boson () through and -Boson fusion in charged and neutral curren…
Effective Field Theory approach to lepto-philic self conjugate dark matter
Hrishabh Bharadwaj, Ashok Goyal
We study the self conjugate dark matter (DM) particles interacting primarily with the standard model leptons in an effective field theoretical frame work. We consider SM gauge inva…
Connecting the Muon Anomalous Magnetic Moment and the Multi-lepton Anomalies at the LHC
Danielle Sabatta, Alan S. Cornell, Ashok Goyal +3
A number of predictions were made in von Buddenbrock et al (2016 Eur. Phys. J. C 76, 10, 580) pertaining to the anomalous production of multiple leptons at the Large Hadron Collide…
Dark matter in the Randall-Sundrum model
Mukesh Kumar, Ashok Goyal, Rashidul Islam
In Ref. \cite{Goyal:2019vsw}, we had considered simplified dark matter models interacting gravitationally with the Standard Model particles in a Randall-Sundrum frame work where mo…
Dark matter in the Randall-Sundrum model with non-universal coupling
Ashok Goyal, Rashidul Islam, Mukesh Kumar
We consider simplified dark matter models (DM) interacting gravitationally with the standard model (SM) particles in a Randall-Sundrum (RS) framework. In this framework, the DM par…
Lepto-philic 2-HDM + singlet scalar portal induced fermionic dark matter
Sukanta Dutta, Ashok Goyal, Manvinder Pal Singh
We explore the possibility that the discrepancy in the observed anomalous magnetic moment of the muon and the predicted relic abundance of Dark Matter by Planck data, can b…
Spin- portal induced Dark Matter
Sukanta Dutta, Ashok Goyal, Lalit Kumar Saini
Standard model (SM) spin-zero singlets are constrained through their di-Bosonic decay channels via an effective coupling induced by a vector-like quark (VLQ) loop at the LHC for $\…
Spin-3/2 dark matter in a simple -channel model
Mohammed Omer Khojali, Ashok Goyal, Mukesh Kumar +1
We consider a spin-3/2 fermionic dark matter (DM) particle interacting with the Standard Model quarks through the exchange of a charged and coloured scalar or vector mediator in a…
Minimal Spin-3/2 Dark Matter in a simple -channel model
Mohammed Omer Khojali, Ashok Goyal, Mukesh Kumar +1
We consider a spin~-~3/2 fermionic dark matter candidate (DM) interacting with Standard Model fermions through a vector mediator in the -channel. We find that for pure vector co…
Anomalous X-Ray Galactic signal from 7 keV spin- dark matter decay
Sukanta Dutta, Ashok Goyal, Sanjeev Kumar
In order to explain the recently reported peak at keV in the galactic x-ray spectrum, we propose a simple model. In this model, the Standard Model is extended by including a…
Measuring anomalous couplings at collider
Sukanta Dutta, Ashok Goyal, Mukesh Kumar +1
We study the accuracy with which the lowest order conserving anomalous couplings in the single top quark production at the proposed large hadron electron collider (LHeC)…
Top quark physics in the Vector Color-Octet Model
Sukanta Dutta, Ashok Goyal, Mukesh Kumar
We study and constrain the parameter space of the vector color-octet model from observed data at Tevatron by studying top quark pair production and associated observables afbt and…
Neutral Trilinear Gauge Boson Couplings in Little Higgs Models
Sukanta Dutta, Ashok Goyal, Mamta
We compute the one loop new physics effects to the CP even triple neutral gauge boson vertices , , and in the context of…
New Physics Contribution to Neutral Trilinear Gauge Boson Couplings
Sukanta Dutta, Ashok Goyal, Mamta
We study the one loop new physics effects to the CP even triple neutral gauge boson vertices , , and in the context of Little H…
Neutrino, Photon Interaction in Unparticle Physics
Sukanta Dutta, Ashok Goyal
We investigate the impact of unparticle physics on the annihilation of relic neutrinos with the neutrinos identified as primary source of ultra high energy (UHE) cosmic ray events,…
Lepton flavour violation in The Little Higgs model
S. Rai Choudhury, A. S. Cornell, A. Deandrea +2
Little Higgs models with T-parity have a new source of lepton flavour violation. In this paper we consider the anomalous magnetic moment of the muon \gmtwo and the lepton flavour v…
Lepton Flavor Violation in Little Higgs Model with T-Parity
Ashok Goyal
If neutrino mass and mixing consistent with the neutrino oscillation data are the only source of lepton flavor violation (LFV)in nature, the other LFV decays like the radiative and…
Lepton number violation in Little Higgs model
S. Rai Choudhury, Naveen Gaur, Ashok Goyal
In this note we examine the constraints imposed by muon anomalous magnetic moment () and on lepton number violating (LNV) couplings of the triplet Hi…
Neutrino mass and lepton number violation in the Little Higgs model
Ashok Goyal
We study lepton number violation in Little Higgs model and find that the choice of putting triplet Higgs vev equal to zero so as not to have any tree level neutrino Majorana mass i…
mass difference in Little Higgs model
S. Rai Choudhury, Naveen Gaur, Ashok Goyal +1
An alternate solution of hierarchy problem in the Standard Model namely, the Little Higgs model, has been proposed lately. In this work mass difference in the f…
Mixed Phase in Compact Starts : M-R relations and radial oscillations
Ashok Goyal
It is believed that quark stars or neutron stars with mixed phase in the core have smaller radii compared to ordinary compact stars. With the recent observation of several low radi…