In the present analysis, I have constructed the CP odd weak basis invariants (WB) at low energies, for Majorana neutrino mass matrix having a condition of two zeros and an equality between arbitrary non-zero elements in the flavor basis, where charged lepton mass matrix is diagonal. This particular form of neutrino mass matrix, also known as hybrid texture, is found to be viable with the...

We have witnessed a persistent puzzling anomaly in the muon magnetic moment that cannot be accounted for in the Standard Model even considering the existing large hadronic uncertainties. A new measurement is forthcoming, and it might give rise to a 5 σ claim for physics beyond the Standard Model. Motivated by it, we explore the implications of this new result to five models based on the...

Search for charged lepton flavor violation (CLFV) is one of the core elements to discover new physics beyond the SM. In this talk, I will perform a comprehensive and systematic analysis of the CLFV sensitivity at the EIC, LHC and low energy data in the framework of the SMEFT.

The Large Hadron-electron Collider (LHeC) is a proposed upgrade of the LHC at CERN. It consists of an ERL providing electrons to collide with the HL-LHC, HE-LHC and the FCC-hh proton beams achieving centre-of-mass energies 1.3-3.5 TeV and luminosities $\sim 10^{34}$ cm$^{−2}$ s$^{−1}$, respectively. These large energies and luminosities lead to charged current Higgs production cross sections...

In view of the current and possible future measurements of (g-2)_mu we investigate several SUSY scenarios. In all cases the (g-2)_mu measurements set upper limits on SUSY particle masses and several light EW particles are guaranteed. These predictions are analyzed in view of future collider searches (pp and e+e-).

Many Beyond Standard Model (BSM) physics scenarios contain new long-lived particles (LLPs), leading to interesting experimental signatures such as e.g. highly-displaced decay signatures. Examples of such minimal models are so-called portals which include coupling of New Physics particle to SM particles through a renormalizable interaction. Going beyond such simple realisations of BSM physics,...

We construct the zero temperature (no compact dimensions) effective action for an SU(2) Yang-Mills theory in five dimensions, with boundary conditions that reduce the symmetry on the four-dimensional boundary located at the origin to a U(1)-complex scalar system. In order to be sensitive to the Higgs phase, we need to include higher dimensional operators in the effective action, which can be...

In this talk, we study some of the consequence of one example of a beyond the Standard Model theory. Namely, we discuss a model based on a spontaneously broken $B-L$ gauge symmetry. It can explain the light neutrino masses via a Type-I seesaw mechanism with heavy neutrinos. From the limits on the light neutrinos masses due to double beta decay experiments and cosmological observations together...

Cascade of particles injected due to the decay and annihilation of dark matter (DM) particles and Primordial black hole (PBH), which has gained increasing interests as an alternative candidate for DM, can potentially change the cosmic recombination history by ionizing and heating the intergalactic medium, which results in altering the anisotropy spectra of the Cosmic Microwave Background...

To achieve the physical goals in the future circular collider, the high resolution tracker for the particle track reconstruction and particle identification are demanded. Time Projection Chamber(TPC) is one of the main concept proposal of the central tracker detector, it has an excellent performance on the moment measurement, $dE/dx$ measurement and the spation resolution.

Based on the...

Based on a number of features from proton-proton collisions taken during Run 1 data taking period at the LHC, a boson with a mass around the Electro-Weak scale was postulated such that a significant fraction of its decays would comprise the Standard Model (SM) Higgs boson and an additional scalar, S. One of the phenomenological implications of a simplified model, where S is treated a SM Higgs...

Abstract: A light CP-even scalar $S$ with mass below GeV-scale exists in may beyond standard model (SM) scenarios. Such a light particle can be produced abundantly in the stars, such as the Sun, red giants, white dwarfs, horizontal-branch stars, neutron star mergers, and supernovae. In this talk I will show the state-of-art stellar limits on $S$. Assuming the couplings of $S$ to the SM...

We investigate simplified models involving an inert scalar triplet and vector-like leptons that can account for the muon g−2 anomaly. These simplified scenarios are embedded in a model that features W' and Z' bosons, which are subject to stringent collider bounds. The constraints coming from the muon g−2 anomaly are put into perspective with collider bounds, as well as bounds coming from...