About me:
My name is Sonali Patnaik. I am originally from India. Currently, I am looking for post-doctoral positions and am a part time guest faculty of physics at College of Basic Sciences and Humanities (CBSH), OUAT, Bhubaneswar India. Here, I have been working for 2 years teaching graduate and postgraduate students. I completed my PhD in 2021 in theoretical physics from Sikhsa ‘O’ Anusandhan University, Bhubaneswar, India. My primary research interest is in particle physics mostly involving phenomenological study of B hadronic decays and flavour anomalies probing new physics signatures. I am looking forward to my ability to collaborate with B-flavoured experiments in diverse B decay channels. I am also interested in calculating scattering amplitudes and form factors, allowing myself to thoroughly pin down physics beyond standard model scales. Recently, I have been involved in investigating the interplay between flavour and dark matter physics during my short-term visit to Indian Institute of Science, Bengaluru, India.
Seminar Title:
Anatomy of beauty-quark decays
Seminar Date:
April 4th, 2023
Abstract:
In view of recent measurements of anomalies in semileptonic B meson decays at LHCb and several other collider experiments hinting at the possible violation of lepton flavour universality (LFU), we present a concise review of theoretical foundations of the tree- and loop-level b decays, b →c, l l and b →s, l+l- along with the updated experimental background. We study the q2- dependence of form factors for the semileptonic transitions and then present the world averages, RD(D*), RK(K*), RJ/ψ, and Rc in a model dependent (based on relativistic independent quark model (RIQM)) as well as model independent approach. We further provide predictions of other anomalies linked with LFU violation such as, anomalous magnetic moment of electron and muon by Fermilab (a, ae), mass of W boson by CDF collaboration, the CKM puzzle (R(Vus)) in view of future high-statistics data, are also discussed. We then look over to the combined explanation of charged-current and neutral- current anomalies (RD(D*), RK), unified together in the language of effective field theory. As flavor anomalies are the strongest hints for physics beyond standard model, it is therefore expected that if the ongoing evaluation of the data of LHC Run 2 confirms the measurements of Run 1, then the statistical significance of the effect in each decay channel separately is expected to reach 5σ. Therefore the confirmation of these measurements would soon turn out to be remarkable evidence, unraveling the New Physics in the flavour fraternity.