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14 papers · 2 filters
QCD Critical Point: Synergy of Lattice & Experiments
Rajiv V. Gavai
The freeze-out curve, which describes a vast amount of precise experimental data in heavy ion collisions, provides a relation between the colliding energy and the thermodynamical p…
A composite light scalar, electro-weak symmetry breaking and the recent LHC searches
Daniel Elander, Maurizio Piai
We construct a model in which electro-weak symmetry breaking is induced by a strongly coupled sector, which is described in terms of a five-dimensional model in the spirit of the b…
Optimization of the baseline and the parent muon energy for a low energy neutrino factory
Amol Dighe, Srubabati Goswami, Shamayita Ray
We discuss the optimal setup for a low energy neutrino factory in order to achieve a 5σ-discovery of a nonzero mixing angle θ_{13}, a nonzero CP phase δ_{CP}, and the mass hierarch…
Probing a Mixed Neutralino Dark Matter Model at the 7 TeV LHC
Monoranjan Guchait, D. P. Roy, Dipan Sengupta
We have analyzed the prospect of probing a non-universal gaugino mass model of mixed bino-higgsino dark matter at the current 7 TeV run of LHC. It provides cosmologically compatibl…
Thermodynamics of the Lee-Wick partners: An alternative approach
Kaushik Bhattacharya, Suratna Das
It was pointed out some time ago that there can be two variations in which the divergences of a quantum field theory can be tamed using the ideas presented by Lee and Wick. In one…
Linearized flavor-stability analysis of dense neutrino streams
Arka Banerjee, Amol Dighe, Georg Raffelt
Neutrino-neutrino interactions in dense neutrino streams, like those emitted by a core-collapse supernova, can lead to self-induced neutrino flavor conversions. While this is a non…
Scale for the Phase Diagram of Quantum Chromodynamics
Sourendu Gupta, Xiaofeng Luo, Bedangadas Mohanty +2
Matter described by Quantum Chromodynamics (QCD), the theory of strong interactions, may undergo phase transitions when its temperature and the chemical potentials are varied. QCD…
Reconciling anomalous measurements in mixing: the role of CPT-conserving and CPT-violating new physics
Amol Dighe, Diptimoy Ghosh, Anirban Kundu +1
Recently observed anomalies in the decay and the like-sign dimuon asymmetry hint at possible new physics (NP) in the $\bsbsbar$ mixing. We parameterize th…
Revealing the footprints of squark gluino production through Higgs search experiments at the Large Hadron Collider at 7 TeV and 14 TeV
Biplob Bhattacherjee, Amitava Datta
The invariant mass distribution of the di-photons from the decay of the lighter scalar Higgs boson(h) to be carefully measured by dedicated h search experiments at the LHC may be d…
Exploring New Physics in the C7-C7' plane
Sebastien Descotes-Genon, Diptimoy Ghosh, Joaquim Matias +1
The Wilson coefficient C7 governing the radiative electromagnetic decays of B meson has been calculated to a very high accuracy in the Standard Model, but experimental bounds on ei…
Top quark forward-backward asymmetry at Tevatron and its implications at the LHC
Biplob Bhattacherjee, Sudhansu S. Biswal, Diptimoy Ghosh
The measurement of forward-backward asymmetry in the top and anti-top quark () production has been recently reconfirmed by the CDF Collaboration and shows a more than $3…
New Physics in b -> s mu+ mu-: CP-Violating Observables
Ashutosh Kumar Alok, Alakabha Datta, Amol Dighe +3
We perform a comprehensive study of the impact of new-physics operators with different Lorentz structures on CP-violating observables involving the b -> s mu+ mu- transition. We ex…
Event-shape selection cuts for supersymmetry searches at the LHC with 7 TeV energy
Monoranjan Guchait, Dipan Sengupta
We investigate the prospects of supersymmetry searches at the LHC with 7 TeV energy. A new set of selection cuts is proposed based on event shapes to control backgrounds. Our preli…
Can Flavor Physics Hint at Distinctive Signals for R-parity Violation at the LHC?
Biplob Bhattacherjee, Gautam Bhattacharyya, Sreerup Raychaudhuri
Observation of some low-energy processes in the flavor physics regime may require the existence of supersymmetry with two relatively large R-parity-violating couplings of the LQD-t…