Conveners
WG8 - Quark and Lepton Flavour Physics: D1-S1 - Parallel - 4
- Soumitra Nandi (IIT Guwahati)
- Saurabh Sandilya (Indian Institute of Technology Hyderabad)
- Dr. Rukmani Mohanta
- Dinesh Kumar (University of Rajasthan , Jaipur)
WG8 - Quark and Lepton Flavour Physics: D2-S1 - Parallel - 5
- Dr. Rukmani Mohanta
- Saurabh Sandilya (Indian Institute of Technology Hyderabad)
- Dinesh Kumar (University of Rajasthan , Jaipur)
- Soumitra Nandi (IIT Guwahati)
WG8 - Quark and Lepton Flavour Physics: D4 - S8 - Parallel - 2
- Soumitra Nandi (IIT Guwahati)
- Rukmani Mohanta (University of Hyderabad)
- Saurabh Sandilya (IIT (Hyderbad))
- Dinesh Kumar (University of Rajasthan , Jaipur)
Charged lepton flavor violation has long been recognized as an unambiguous signature of New Physics. Here, we describe the physics capabilities and discovery potential of New Physics models with charged lepton flavor violation in the tau sector as its experimental signature. Current experimental status from the B-Factory experiments BaBar, Belle and Belle II, and future prospects at Super Tau...
Several indications of lepton non-universality observables have been perceived in semileptonic $B$ meson decay processes, both in the neutral-current ($b \to s ll $) and charged-current ($b \to c l \bar \nu_l$) transitions, recently. Influenced by these fascinating quotients, we examine the semileptonic decays involving the $b \to c l \bar \nu_l$ quark level transitions. We execute it...
The hierarchical structure of fermion masses and mixings is a major unsolved problem in the Standard model. Fermion masses as radiative corrections emerge as one of the reliable explanations for this problem. We propose a framework based on a class of abelian gauge symmetries in which the masses of only the third generation quarks and leptons arise at the tree level, and the lighter...
The measurement of CP violating weak phase $\phi_s$ is achieved using the data collected by the CMS experiment at $\sqrt{s}=13$ TeV in the sample of 48500 reconstructed $B^0_s\rightarrow J/\psi \phi \rightarrow \mu^+\mu^-K^+K^-$ events corresponding to an integrated luminosity of 96.4fb$^{-1}$. The parameters are extracted by performing a time-dependent and flavor-tagged angular analysis of...
Several extensions of the standard model (SM) predict the existence of heavy particles that undergo lepton flavor violating (LFV) decays, thereby motivating searches to look for deviations from the SM in the dilepton final states. This talk will present the recent results on the search for such heavy resonances and quantum black holes in the eμ, eτ, and μτ mass spectra using the proton-proton...
The distribution amplitudes (DAs) for a heavy quark system are not known well and are very challenging. One tries to model them using heavy quark effective field theory. However, there is a free parameter involved which is related to the inverse moments of DAs. Its value needs to be fixed using some experimental data. For the case of B-meson, it is done using the information on the $B \to...
Decays mediated by the flavour-changing neutral current transition $b\to s\ell^{+}\ell^{-}$ are not allowed at tree level in the standard model (SM) and can only proceed via higher-order loop diagrams. Such suppressed decays provide an excellent avenue to search for physics beyond the SM. The $B\to K\ell^{+}\ell^{-}$ ($ell = e, \mu$) decays have recently sparked a lot of interest in a...
We measure the strong-phase difference between $D^{0}$ and $\bar{D_{0}}\to K_{S}^{0}K^{+}K^{-}$ using a data sample corresponding to an integrated luminosity of 2.92 ${\rm fb}^{-1}$ collected in $e^{+}e^{-}$ collisions at a centre-of-mass energy corresponding to the mass of the $\psi(3770)$. The D0-D0bar meson pairs produced are in a quantum-correlated state, their subsequent...
A review of results related to the so called B anomalies is presented. The results come both the e+e- B factories and LHC. The talk concludes with a discussion of some the recent results from Belle II experiment related to anomalies.
The $B^{0}\to K^{0}\pi^{0}$ decay is mediated by flavor-changing neutral currents, which are suppressed in the standard model (SM), and it provides an indirect route to search for beyond-the-SM particles. The decay is a key factor in improving the sensitivity of the $K$--$\pi$ isospin sum-rule. The first time-dependent analysis of the decay within Belle II is performed using a sample of...
We constrain the parameter space of a simplified dark matter model with a spin-0 mediator and a fermionic dark matter from low energy observables like anomalous magnetic moment, FCNC processes like neutral meson mixing, rare decays of $ B_0, B_s^0, K $ meson, semileptonic $ b \to s \ell \ell $ decays, invisible decays of B and K meson and process like $ t \to b W_{\mu} $ decay. FCNC is...
The study of B decays has led to a much better understanding in the flavor sector of the SM. In the CP-violation study, the measurement of sin(2β) has an important role. The “golden channel” Bd0 → J/ΨKs0, plays an outstanding role for a clean measurement of sin(2β), where β is one of the angles of the CKM unitarity triangle. The channel Bs0 → J/ΨKs0, is related to Bd0 → J/ΨKs0 through...
