Fractal based observables to probe jet substructure of quarks and gluons

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• Joseph Davighi, DAMTP, Cambridge
• Friday 19 May 2017, 16:00-17:30
• B1.19, DAMTP.

If you have a question about this talk, please contact Dr Maria Ubiali.

I will discuss a new class of jet observables, which are designed to characterize both fractal and scale-dependent contributions to the distribution of hadrons within the jet. These infrared safe observables, which we name Extended Fractal Observables (EFOs), have been applied to the important problem of distinguishing quark jets from gluon jets. I shall summarize evidence from parton shower simulations that the inclusion of EFOs improves the performance of existing quark gluon discriminators. More generally, this method of studying jet substructure is a new approach, and I shall discuss other possible applications in particle physics.

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

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