22nd Conference on Flavor Physics and CP Violation (FPCP 2024)

Session

Parallel - 5

28 May 2024, 14:00

Chulalongkorn University

Conveners

Parallel - 5

• NAPAT POOVUTTIKUL

58. Exploring Constraints on Simplified Dark Matter Model Through Flavor and Electroweak Observables

Ms Lipika Kolay (IIT Guwahati)

28/05/2024, 14:00

Flavor and Dark Sector

Parallel session

We have considered a simplified dark matter model featuring a spin-0 mediator that contributes to Flavor Changing Charge Current (FCCC) and Neutral Current (FCNC) processes, as well as electroweak observables at the one-loop level. Through a combined fit incorporating all flavor observables of FCNC, FCCC, and EW observables, we constrain the parameter space. This model adequately describes...

91. Exploring Flavor Anomalies and Dark Matter in $U(1)_{L_e-L_\mu}$ model with a scalar leptoquark

Manas Mohapatra (University of Hyderabad)

28/05/2024, 14:15

Flavor and Dark Sector

Parallel session

We explore $U(1)_{L_e-L_\mu}$ gauge extension of the Standard model with particle content enlarged by three neutral fermions, of which the lightest one contributes to dark matter content of the Universe. The scalar sector is enriched with a $\tilde{R}_2$ scalar leptoquark doublet to investigate flavor anomalies in $B$-meson sector, an additional inert scalar doublet to realize neutrino mass at...

100. Asymmetric Self-interacting Dark matter via Dirac Leptogenesis

Dr Manoranjan Dutta (North Lakhimpur University)

28/05/2024, 14:30

Flavor and Dark Sector

Parallel session

The nature of neutrinos, whether Dirac or Majorana, is hitherto not known. Assuming that the neutrinos are Dirac, which needs $B-L$ to be an exact symmetry, we attempt to explain the observed proportionality between the relic densities of dark matter (DM) and baryonic matter in the present Universe ${\it i.e.,}\,\, \Omega_{\rm DM} \approx 5\, \Omega_{\rm B}$. We extend the Standard Model (SM)...

102. Role of Right-handed Neutrinos in $B_{c}^{+} \to B_{s} \bar{\mu} \nu$

Ms Priyanka Boora (Malaviya National Institute of Technology Jaipur)

28/05/2024, 14:45

Flavor and Dark Sector

Parallel session

We perform a model-independent study of $c \to s \mu \nu$ mediated transitions to analyze the new physics effects in the presence of right-handed neutrinos. We have adopted the effective field theory approach and write the low-energy effective Hamiltonian including all possible dimension-six operators. The Wilson coefficients introduced through low energy effective Hamiltonian encode all NP...

103. Lepton flavour violating Σ_b→Σl_1 l_2 decays in Z^’ model

Ms Swagata Biswas (National Institute of Technology Durgapur)

28/05/2024, 15:00

Flavor and Dark Sector

Parallel session

Inspired by the various LHCb results of lepton flavour violation on b→s transition we will study the lepton flavour violating b→l1l2 decays in terms of transversity amplitudes in non-universal Z’ model. These LFV
processes are extremely suppressed in the Standard Model (SM) because the expected levels at the SM lie far below current experimental sensitivities. In particular the branching...

80. Searching new physics in $c→ul^+ l^-$ decays with non-universal Z' model

Ms Mansi Mandal (National Institute of Technology Durgapur)

28/05/2024, 15:15

Rare decays of hadrons and leptons

Parallel session

Charm decays have immense potential to probe physics beyond the standard model [1, 2]. The charm sector has shown some interesting phenomena, for instance, $D^0-\bar{D^0}$ mixing and CP violation [3, 4]. The experimental upper bounds for the branching fractions are constrained at $7.9×10^{-8}$ for $D^0→e^+ e^-$[5] and $6.2×10^{-9}$ for $D^0→μ^+ μ^-$[6]. Recent results from the LHCb have...