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A new hadron spectroscopy Highly Cited Paper

Cited 54 time in webofscience Cited 0 time in scopus
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Title
A new hadron spectroscopy
Author(s)
Stephen Lars Olsen
Publication Date
2015-04
Journal
FRONTIERS OF PHYSICS, v.10, no.2, pp.121 - 154
Publisher
HIGHER EDUCATION PRESS
Abstract
QCD-motivated models for hadrons predict an assortment of “exotic” hadrons that have structures that are more complex than the quark-antiquark mesons and three-quark baryons of the original quark-parton model. These include pentaquark baryons, the six-quark H-dibaryon, and tetraquark, hybrid and glueball mesons. Despite extensive experimental searches, no unambiguous candidates for any of these exotic configurations have been identified. On the other hand, a number of meson states, one that seems to be a proton-antiproton bound state, and others that contain either charmedanticharmed quark pairs or bottom-antibottom quark pairs, have been recently discovered that neither fit into the quark-antiquark meson picture nor match the expected properties of the QCDinspired exotics. Here I briefly review results from a recent search for the H-dibaryon, and discuss some properties of the newly discovered states –the proton-antiproton state and the so-called XY Z mesons– and compare them with expectations for conventional quark-antiquark mesons and the predicted QCD-exotic states.
URI
https://pr.ibs.re.kr/handle/8788114/1433
ISSN
2095-0462
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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