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March 1, 2018 | 3:30 p.m. - 4:30 p.m.
Category: Seminar
Location: Physics #312 | Map
666 W. Hancock
Detroit, MI 48201
Cost: Free
Audience: Academic Staff, Current Graduate Students, Current Undergraduate Students, Faculty

Title: Quarkonium Production in Jets at LHCb

Speaker: Thomas Mehen (Duke University)


This talk will describe new tests of quarkonium production using quarkonia that are produced within jets. We study the distribution in the fraction z of a jet's longitudinal momentum carried by the quarkonium. The z-distribution is sensitive to the underlying NRQCD production mechanism. Analytic calculations the z-distributions in SCET that incorporate Next-to-Leading-Log (NLL) resummation disagree with default PYTHIA predictions. We describe a modified simulation method which agrees well with NLL analytic calculations. This method is then successfully applied to recent LHCb measurements of J/ψ within jets. We discuss the implications of this measurement for extractions of NRQCD long-distance matrix elements. Finally, we discuss other observables involving quarkonium within jets which may be useful for discriminating between NRQCD production mechanisms.
For more information about this event, please contact James Osborne at (313) 577-1409 or