Bulletin of the American Physical Society
86th Annual Meeting of the APS Southeastern Section
Volume 64, Number 19
Thursday–Saturday, November 7–9, 2019; Wrightsville Beach, North Carolina
Session A03: The Hadron Spectra as Probes of QCD |
Hide Abstracts |
Chair: Sean Dobbs, Florida State University Room: Holiday Inn Resort Turtlewatch |
Thursday, November 7, 2019 8:30AM - 9:00AM |
A03.00001: The Spectroscopy of Baryons containing Strange, Charm or Bottom Invited Speaker: John Yelton The study of the spectroscopy of heavy-quark baryons is now many decades old, however there are many states still to be found and understood. I present a review of the experimental results on the spectroscopy of the states of all baryons which include one strange, charm or bottom quark. The emphasis is on recent results in this field. The masses and properties of the states are interpreted in the quark model, and unanswered questions are highlighted. [Preview Abstract] |
Thursday, November 7, 2019 9:00AM - 9:30AM |
A03.00002: Recent results in the hadron spectrum and tools from the JPAC Collaboration Invited Speaker: M. Albaladejo We will review the most recent results by the JPAC theoretical collaboration concerning the hadron spectrum as well as the theoretical tools to study the former. In particular, we will discuss our work about the LHCb pentaquarks, the exotic $\pi _{1}$ (1400)/ $\pi _{1}$ (1600), and theoretical methods to study three-body decays. [Preview Abstract] |
Thursday, November 7, 2019 9:30AM - 10:00AM |
A03.00003: Recent Results From GlueX Invited Speaker: Colin Gleason The primary goal of the GlueX experiment at Jefferson Lab is to search for and map the spectrum of light hybrid mesons. GlueX began taking data in 2016 and in December 2018 completed its initial program of data collection, providing orders of magnitude more data than similar experiments at this energy. As a first step in developing its analysis program to search for hybrid mesons, the GlueX Collaboration aims to measure polarization observables, spin density matrix elements (SDMEs), and cross--sections of mesons in order to understand their production mechanism. This talk will give an overview of recent results from GlueX, including beam asymmetries and SDMEs, current efforts to study light mesons through amplitude analysis, discuss the prospects for hybrid meson searches, and report on other measurements such as the cross--section of $J/\psi$ at threshold. [Preview Abstract] |
Thursday, November 7, 2019 10:00AM - 10:30AM |
A03.00004: Investigating a doubly bottomed tetraquark with lattice QCD Invited Speaker: Luka Leskovec Tetraquarks, states composed of four valence quarks, have been predicted to exist in quantum chromodynamics (QCD) since its inception. Using lattice QCD, a regularization of QCD on a finite-volume space-time grid, we investigate the spectrum of the doubly bottom four-quark system with isospin 0 and $J^P=1^+$. We construct a correlation matrix of local four-quark and non-local two-meson interpolating fields and determine the finite volume spectrum from its euclidean time evolution. A chiral extrapolation performed on five different gauge ensembles results in a $\bar{b}\bar{b}ud$ tetraquark mass of $(10476\pm24\pm10)$ MeV. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700