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Direct and Indirect Search for New Physics at Colliders
The Standard Model (SM) of particle physics has been remarkably successful to describe strong, weak and electromagnetic forces of nature, as it has agreed with most of the experiments till date. However, there are still ...
Quantum dynamics of weak measurements: Understanding the Born rule and applying weak error correction
Projective measurement is used as a fundamental axiom in quantum mechanics, even though it is discontinuous and cannot predict which measured operator eigen state will be observed in which experimental run. The probabilistic ...
Understanding Conformal Field Theory in Mellin Space
In the last decade, there has been tremendous progress in understanding conformal eld theories in
more than two space-time dimensions. The numerical bootstrap framework has been pushed to a very
advanced level of ...
Topological Phases, Majorana Modes, Dynamics and Transport in One-Dimensional Systems
This thesis presents work done on topological phases, Majorana modes, dynamics and
transport in various system like the Kitaev models in one and two dimensions and systems
with junctions of a p-wave superconductor and ...
Lessons for Gravity from Entanglement
One of the recent fundamental developments in theoretical high energy physics is the AdS/CFT
correspondence [1, 2, 3, 4] which posits a relationship between Quantum Field Theories (QFT)
in a given dimension and String ...
Heavy flavour and direct photon probes of the gluon Sivers function
Traditionally the production of heavy quarkonia, heavy-flavour mesons as well as of direct photons,
has been used to constrain the gluon density inside the proton. In this thesis, I have assessed
various heavy flavour ...
Searches for Higgs boson pair production in bbbb and bbgammagamma final states at Compact Muon Solenoid detector
The discovery of the Higgs boson makes the Standard Model (SM) a promising theory to understand fundamental physics. Despite its progress, the theory does not explain many observed phenomena such as dark matter and hierarchy ...
Search for dark matter produced in association with b-jets in proton-proton collisions at √s = 13 TeV with the CMS detector using full Run2 data
A search for dark matter particles in the events containing large missing transverse energy accompanied by b-quarks has been performed. The data collected by the Compact Muon Solenoid detector at the Large Hadron Collider ...
Phenomenological Explorations in Dark Matter
The previous decade has seen an explosive increase in explorations into the nature of dark matter (DM) encompassing astrophysical, particle and cosmological probes. We face today a large body of gravitational evidences ...
Chiral Phase Transition Temperature in 3-flavor QCD
The nature of the chiral phase transition in QCD with three massless
flavors of quarks remains unresolved despite being studied for nearly four decades. This
Ph.D. thesis is a study using Lattice QCD to determine the ...