Charging a leptoquark under Lmu-Ltau

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• Matthew Kirk (La Sapienza/ INFN, Rome)
• Thursday 11 June 2020, 16:00-17:00
• Virtual Seminar .

If you have a question about this talk, please contact Joseph Davighi.

The seminar will take place via vidyo here . The explicit url is: https://indico.cern.ch/event/927796/ .

Abstract: The persistent anomalies in a variety of rare b->sll decays are one of the most intriguing signs of BSM physics at the moment. The scalar leptoquark S3 is a common model proposed to explain these anomalies but it has some conceptual difficulties which are often brushed over, relating to proton decay and the generic lepton coupling. After giving a general introduction to the history and current status of the b->sll flavour anomalies I will discuss these problems, and how promoting one of the accidental global symmetries of the SM, L_mu – L_tau, to a gauge symmetry can provide a nice solution. I also discuss the naturalness of introducing new scalars above the EW scale and will use an argument known as finite naturalness to justify the existence of a mass hierarchy.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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