Bulletin of the American Physical Society
Fall 2022 Meeting of the APS Division of Nuclear Physics
Volume 67, Number 17
Thursday–Sunday, October 27–30, 2022; Time Zone: Central Daylight Time, USA; New Orleans, Louisiana
Session PC: Hadronic Physics VI
10:30 AM–12:18 PM,
Sunday, October 30, 2022
Hyatt Regency Hotel
Room: Celestin A
Chair: Ramona Vogt, LLNL/UC Davis
Abstract: PC.00006 : The decay of the b1(1235)-neutral meson through the ωπ0 channel at GlueX*
11:30 AM–11:42 AM
Presenter:
Karthik Suresh
(Univ of Regina)
Authors:
Karthik Suresh
(Univ of Regina)
Zisis Papandreou
(Univ of Regina)
Justin R Stevens
(William & Mary)
Collaboration:
GlueX Collaboration
The GlueX experiment at Jefferson Lab contributes to the global spectroscopy program through studies of the mesons produced using a beam of 8-9 GeV linearly polarized photons. This experiment focuses on the exploration of the light-quark domain, potentially accessing hybrid mesons with exotic JPC quantum numbers in photoproduction reactions.
Recent Lattice QCD calculations predict that the lightest exotic π1(1600) decays primarily to the b1π system and can be experimentally accessed through the dominant decay b1→ωπ. In this talk, we discuss the direct production of the b1 meson γp→b1p, where the axial-vector meson b1(1235) decays to ωπ0. We extract the D/S wave ratio from a partial-wave analysis to validate the predicted couplings to this axial-vector resonance from Lattice QCD calculations. The model for the ωπ0 system along with preliminary partial-wave analysis fit results will be presented.
*The work is supported by the Natural Sciences and Engineering Research Council of Canada Grant No. SAPPJ-2018-00021
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