Conveners
BSM VI
- Brian Shuve (Harvey Mudd College)
A minimal model of $SU(5)$ Grand Unification is proposed. The model is entirely built out of the first five lowest dimensional $SU(5)$ representations. Charged and neutral fermion mass generation mechanisms are non-trivially linked together. The main predictions of the model are that $(i)$ the neutrinos are Majorana particles, $(ii)$ one neutrino is massless, $(iii)$ the neutrinos have normal...
Several theories Beyond the Standard Model (BSM) have been proposed so far to address the shortcomings of the Standard Model. Such theories predict various resonances with different spins. In a 2 → 2 pair-production, spins of the scattered states determine the nature of differential angular distribution of the scattered pair in the rest frame of interaction. However, the Large Hadron
Collider...
Supermassive black hole binaries generate a gravitational wave background that will soon be measured by pulsar timing arrays. While the amplitude of this background is uncertain, the shape of its spectrum is a robust prediction of general relativity. We show that the effects of new forces beyond the Standard Model can modify this prediction and introduce unique features into the spectral...
A 10 dimensional model with $\mathcal{N}=1$ SUSY and $E_8$ as a gauge group will be presented. It will be shown that through the orbifold $T^6/(Z_3 \times Z_3)$, only the Standard Model remains after compactification, with feasible Yukawa couplings. Gauge coupling unification can be achieved at $M_{GUT}=10^7 GeV$ with a viable proton lifetime. Therefore the highly predictive extra dimensional...
Parity solutions to the strong CP problem are a compelling alternative to approaches based on Peccei-Quinn symmetry, particularly given the expected violation of global symmetries in a theory of quantum gravity. The most natural of these solutions break parity at a low scale, giving rise to a host of experimentally accessible signals. In this talk, we give an overview of this class of...
This talk discuss the general method for obtaining full positivity bounds on multi-field effective filed theories (EFTs), from analyticity and unitarity requirements on the UV theory. We then identify the allowed parameter space as the dual to a spectrahedron, constructed from crossing symmetries of the amplitude, and show that finding the optimal bounds for a given number of modes is...
Lepton number violation (LNV) is a very attractive research topic for theoretical and experimental physicists due to its implications beyond the Standard Model. It provides feasible theoretical explanations to several open questions in particle physics (e.g., the origin of neutrino mass) and also has a rich phenomenology at different energy scales. We explore the underlying connections between...
Searches for SUSY in hadronic final states with the CMS experiment
