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    Higgs phenomenology and Dark Matter prospects in MSSM, NMSSM and U(1) extended SM

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    Author
    Barman, Rahool Kumar
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    Abstract
    Particle physics today is at a juncture where all particles predicted within Standard Model (SM) have been discovered at the particle colliders while no particles from the realm of physics beyond the Standard Model (BSM) have been observed yet. The discovery of the 125 GeV Higgs particle using the Run-I data collected at the Large Hadron Collider (LHC), by the ATLAS and CMS collaborations, has initiated a new era in particle physics. Comprehensive studies to investigate the spin and parity quantum number of the observed resonance prefer its scalar nature and numerous investigations find the properties of the observed resonance to be in good accordance with the predictions from SM. However, the possibility of the observed resonance to be a part of an extended Higgs sector is not ruled out by the current LHC data. Furthermore, the SM does not provide an explanation for various experimentally observed phenomena viz the existence of dark matter (SM), the neutrino masses, the baryon asymmetry. Several BSM theories have been proposed to address these shortcomings in SM, many of which also contain an extended Higgs sector
    URI
    https://etd.iisc.ac.in/handle/2005/4962
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