| Speaker: | Ashutosh Kumar Alok (IIT Jodhpur ) |
|---|---|
| Title: | Investigating quantum decoherence at Belle II and LHCb |
| Date (JST): | Thu, Sep 19, 2024, 13:30 - 15:00 |
| Place: | Seminar Room A |
| Abstract: |
The emergence of Belle II and the upgraded LHCb presents a significant opportunity to explore physics beyond the standard model of electroweak interactions. These experiments also hold promise for establishing constraints on phenomena occurring at much smaller length scales, such as quantum decoherence. In this study, we establish the framework to investigate the influence of quantum decoherence on several potential observables in B meson systems. Our approach employs the trace-preserving Kraus operator formalism, which extends unitary evolution to encompass non-unitary dynamics while ensuring complete positivity. Within this formalism, decoherence effects are parametrized by a single phenomenological parameter. Through the analysis of purely leptonic, semi-leptonic, and non-leptonic decays of B mesons, we identify observables that could potentially be affected by decoherence. Given that many of these observables can be measured with high precision using the vast dataset collected by Belle II and LHCb, our framework can be utilized to set constraints on the decoherence parameter across multiple decay channels. This offers an alternative set-up for such studies, which, at present, are predominantly conducted in the neutrino sector. |
