Muonic Force Behind Flavour Anomalies - Peter Stangl

Add to your list(s) Download to your calendar using vCal

• Peter Stangl (University of Bern)
• Friday 12 November 2021, 16:00-17:00
• Virtual Seminar .

If you have a question about this talk, please contact Maeve Madigan.

This year, two long-standing hints of new physics have been corroborated by precision measurements. The Muon g-2 experiment found agreement with the previous Brookhaven measurement and LHCb has reported evidence for violation of lepton flavour universality (LFU). Prime candidates for new-physics explanations of these anomalies are, in both cases, scalar leptoquarks. In generic models, however, these new particles are notorious for leading to excessive lepton flavour violation (LFV) and proton decay. I will present a class of models in which a new U(1) gauge symmetry turns leptoquarks into “muoquarks” by ensuring that they couple only to quarks and second-generation leptons. As a result, the muoquark models are free of LFV and proton decay. It turns out that in a muoquark model that explains the violation of LFU , the U(1) gauge boson can provide the necessary contribution to explain the Muon g-2 measurement. For this type of muoquark models, I will present a classification of the possible U(1) gauge groups and show how their parameter space can be probed by precision measurements.

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

This talk is included in these lists:

• All CMS events
• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• CMS Events
• Centre for Health Leadership and Enterprise
• DAMTP info aggregator
• Featured lists
• HEP phenomenology joint Cavendish-DAMTP seminar
• HEP web page aggregator
• Interested Talks
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• School of Technology
• Thin Film Magnetic Talks
• Virtual Seminar
• bld31
• few29

Note that ex-directory lists are not shown.