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13 papers · 2 filters
Supersymmetry Parameter Analysis: SPA Convention and Project
J. A. Aguilar-Saavedra, A. Ali, B. C. Allanach +122
High-precision analyses of supersymmetry parameters aim at reconstructing the fundamental supersymmetric theory and its breaking mechanism. A well defined theoretical framework is…
Studying the effects of minimal length in large extra dimensional models in the jet + missing energy channels at hadron colliders
Gautam Bhattacharyya, Kumar Rao, K. Sridhar
Theories of quantum gravity suggest the existence of a minimal length scale. We study the consequences of a particular implementation of the idea of a minimal length scale in the m…
Charged Higgs Boson Search at the LHC
D. P. Roy
This review starts with a brief introduction to the charged Higgs boson in the Minimal Supersymmetric Standard Model (MSSM). It then discusses the prospects of a relative…
Bilarge neutrino mixing from supersymmetry with high-scale nonrenormalizable interactions
Biswarup Mukhopadhyaya, Probir Roy, Raghavendra Srikanth
We suggest a supersymmetric (SUSY) explanation of neutrino masses and mixing, where nonrenormalizable interactions in the hidden sector generate lepton number violating Majorana ma…
Phase effects in neutrino conversions during a supernova shock wave
Basudeb Dasgupta, Amol Dighe
Neutrinos escaping from a core collapse supernova a few seconds after bounce pass through the shock wave, where they may encounter one or more resonances corresponding to $Δm^2_{\r…
Looking for a Heavy Higgsino LSP in Collider and Dark Matter Experiments
Utpal Chattopadhyay, Debajyoti Choudhury, Manuel Drees +2
A large part of the mSUGRA parameter space satisfying the WMAP constraint on the dark matter relic density corresponds to a higgsino LSP of mass TeV. We find a promising…
Probing the deviation from maximal mixing of atmospheric neutrinos
Sandhya Choubey, Probir Roy
Pioneering atmospheric muon neutrino experiments have demonstrated the near-maximal magnitude of the flavor mixing angle . But the precise value of the deviation $D \equiv…
Event shape discrimination of supersymmetry from large extra dimensions at a linear collider
Partha Konar, Probir Roy
The production of a charged lepton (e/mu) pair with a large missing energy at a linear collider is discussed as a means of distinguishing the minimal supersymmetry (MSSM) scenario…
NLO-QCD Corrections to Dilepton Production in the Randall-Sundrum Model
Prakash Mathews, V. Ravindran, K. Sridhar
The dilepton production process at hadron colliders in the Randall-Sundrum (RS) model is studied at next-to-leading order in QCD. The NLO-QCD corrections have been computed for the…
Results from Lattice QCD
Rajiv V. Gavai
I present our recent results on the critical end point in the μ_B-T phase diagram of QCD with two flavours of light dynamical quarks and compare them with similar results from othe…
A transport coefficient: the electrical conductivity
Sourendu Gupta
I describe the lattice determination of the electrical conductivity of the quark gluon plasma. Since this is the first extraction of a transport coefficient with a degree of contro…
Quark Number Susceptibilities & The Wroblewski Parameter
Rajiv V. Gavai, Sourendu Gupta
The Wroblewski parameter is a convenient indicator of strangeness production and can be employed to monitor a signal of quark-gluon plasma production : enhancement of strangeness p…
Infrared fixed point of the top Yukawa coupling in split supersymmetry
Katri Huitu, Jari Laamanen, Probir Roy +1
The severe constraints imposed on the parameter space of the minimal split supersymmetry model by the infrared fixed point solution of the top Yukawa coupling are studied in…