International Conference on Recent Issues in Nuclear and Particle Physics (RINP2)

Session

Parallel Session Paticle Physics

5 Feb 2019, 14:00

Lipika Auditorium, Visva-Bharati, Santiniketan

12. Stability in the Minimal Type-III Seesaw Model

Najimuddin Khan (Indian Institute of Technology Indore)

05/02/2019, 14:00

We study the minimal type-III seesaw model to explain the origin of the
non-zero neutrino masses and mixing. We show that the naturalness arguments
and the bounds from lepton flavor violating decay (μ → eγ) provide very
stringent bounds on the model along with the constraints on the stability
of the electroweak vacuum up to High energy scale. We perform a detailed
analysis of the model...

33. Two component WIMP–FImP dark matter model with singlet fermion, scalar and pseudo scalar

Ms Madhurima Pandey (Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Kolkata 700064, India)

05/02/2019, 14:25

We explore a two component dark matter model with a fermion and a scalar. In this scenario the Standard Model (SM) is extended by a fermion, a scalar and an additional pseudo scalar. The fermionic component is assumed to have a global U(1)$_{\rm DM}$ and interacts with the pseudo scalar via Yukawa interaction while a $ℤ_2$ symmetry is imposed on the other component – the scalar. These...

25. Lepton polarization asymmetry in excited b-mesons

Mrs PRIYA MAJI (NATIONAL INSTITUTE OF TECHNOLOGY DURGAPUR)

05/02/2019, 14:50

Recently, some unexpected phenomena in various B meson decays are being observed in several experiments. Few of the observables are branching ratio of $B_s→φμ^+ μ^-$ decay, angular observable $P_5$' in $B→K^* μ^+ μ^-$ decay, lepton flavour non-universality parameters $R_{K(^*)}$,$R_{D(^*)}$ etc. The fact that these observables show significant deviation around 3σ from their standard model...

15. A theoretical study of shape shifters on forth generation flavour - sterile neutrino

Ms Janani M R (Jain University, Bangalore, India)

05/02/2019, 15:10

Interpretation of data from MiniBooNE experiment at Fermilab and liquid scintillator neutrino detector (LSND) with a two-neutrino oscillation model, i.e, muon neutrino to electron neutrino, shows that, MiniBooNE experiment confirms the fourth neutrino flavour. These flavour’s properties and behaviours raise a lot of opportunities and challenges to understand the universe. In this present work,...

4. Model-independent Astrophysical Constraints on Leptophilic Dark Matter in the Framework of Tsallis Statistics

Mr Atanu Guha (BITS Pilani Goa Campus)

We derive model-independent astrophysical constraints on leptophilic dark matter (DM), considering its thermal production in a supernova core and taking into account core temperature fluctuations within the framework of $q$-deformed Tsallis statistics. In an effective field theory approach, where the DM fermions interact with the Standard Model via dimension-six operators of either...