Bulletin of the American Physical Society
APS April Meeting 2020
Volume 65, Number 2
Saturday–Tuesday, April 18–21, 2020; Washington D.C.
Session B07: Exotic HadronsInvited Live
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Sponsoring Units: GHP Chair: Jake Bennett, University of Mississippi Room: Roosevelt 2 |
Saturday, April 18, 2020 10:45AM - 11:21AM Live |
B07.00001: What do Exotic Hadrons Require of Theory? Invited Speaker: Eric Swanson Understanding the properties of exotic hadrons places high demand on theoretical ability. We review the nature of these demands on phenomenology, lattice field theory, and effective field theory. Recent progress in meeting these demands is highlighted. [Preview Abstract] |
Saturday, April 18, 2020 11:21AM - 11:57AM Live |
B07.00002: Exotic Mesons at Electron-Positron Colliders Invited Speaker: Ryan Mitchell According to the conventional quark model, mesons are bound states of a quark and anti-quark. This model has been tremendously successful in describing the properties of a wide range of mesons, from the lightest pions (made with up and down quarks) to the heaviest Upsilons (made with bottom quarks). However, a barrage of recent experimental results suggest that more complex mesons exist, such as tetraquarks, meson molecules, or hybrid mesons. The ongoing attempt to understand these experimental results has been leading to new insights into the way the strong force works. In this talk, I will review the experimental status of a variety of candidate exotic mesons with an emphasis on results unique to electron-positron colliders. [Preview Abstract] |
Saturday, April 18, 2020 11:57AM - 12:33PM Live |
B07.00003: Exotics at hadron machines Invited Speaker: Daniel Craik Since the advent of the quark model in the 1960's, the vast majority of hadrons have been well-described by bound states of either three quarks or a quark and an anti-quark. However, bound states of four, five or more quarks have long been expected. In the last decade, an ever-growing number of hidden-charm and hidden-beauty states have been observed with minimal quark contents of $Q\bar{Q}q\bar{q}$ (tetraquarks) and $Q\bar{Q}qqq$ (petaquarks). An overview will be given of the latest experimental results from hadron collisions, including the latest results from LHCb regarding the $P_{c}$ pentaquarks. [Preview Abstract] |
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