2-7 June 2019
Simon Fraser University
America/Vancouver timezone
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Probing the Strangeonium Hybrid Content of the Y(2175) Using Gaussian Sum-Rules

Jun 5, 2019, 12:00 PM
SCB 9242 (Simon Fraser University)

SCB 9242

Simon Fraser University

Oral (Non-Student) / Orale (non-étudiant(e)) Theoretical Physics / Physique théorique (DTP-DPT) W1-4 Advances in Nuclear and Particle Theory (DTP/PPD/DNP) | Progrès en théorie nucléaire et théorie des particules (DPT/PPD/DPN)


Derek Harnett (University of the Fraser Valley)


The Y(2175) resonance was first observed in an initial state radiation process by the BaBar Collaboration. It was later confirmed by the BES, Belle, and BESIII collaborations. A conventional strangeonium meson interpretation of the Y(2175) is disfavoured due to the resonance's relatively narrow width and unexpected decay patterns. As such, it may be an outside-the-quark-model hadron, e.g., a hybrid, tetraquark, and/or meson molecule. We use Gaussian sum-rules---a variant of QCD sum-rules well-suited to studying multi-resonance models---to investigate possible strangeonium hybrid content of the Y(2175).

Primary authors

Derek Harnett (University of the Fraser Valley) Jason Ho (University of Saskatchewan) Mr Ryan Berg Tom Steele (U of Saskatchewan) Wei Chen (Sun Yat-sen University)

Presentation materials