[Theory-seminars] Theory Seminar Tomorrow - Samson Clymton

[Caroline Silva Rocha Costa]

Dear all,

Tomorrow, at 9:00AM EDT, we will have a virtual seminar given by Samson Clymton of Inha University on the Zoom for Government link:

https://jlab-org.zoomgov.com/j/1618563347?pwd=Yell0csknKs9kuU8BNiG4or6Cxvmfo.1

Please see below for the title and abstract.

Theory Seminar: September 23rd, 9:00AM EDT (virtual)

Speaker: Samson Clymton (Inha University)

Title: Production mechanism of the hidden charm pentaquark states

Abstract: The Large Hadron Collider beauty (LHCb) collaboration’s discovery of pentaquarks has revitalized research in heavy exotic baryon spectroscopy. We study hidden-charm pentaquark states using an off-shell coupled-channel formalism involving heavy meson and singly heavy baryon scattering, employing an effective Lagrangian that respects both heavy quark spin symmetry and hidden local symmetry. This talk focuses on the production of hidden-charm pentaquark states with strangeness ranging from S = 0 to S = -3. Key results include: six negative parity and two positive parity Pcc̅  states, explaining the absence of a Pcc̅ signal in J/ψ photoproduction by GlueX; eight negative parity and three positive parity Pcc̅s states, with Pcc̅s(4459) potentially resulting from two poles (one narrow, one broad) similar to the past Pcc̅(4450) case; and predictions of eight Pcc̅ss and two Pcc̅sss states. These findings elucidate known pentaquark properties, guide future experimental searches, and extend our understanding of exotic hadron production.

See you tomorrow.

Best regards,
Caroline, Joe, Zheng-Yang, and Gloria
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