IS {ital f}{sub 0}(1500) a scalar glueball?

Journal Article · Mon Jan 01 04:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.53.295· OSTI ID:256724

Amsler, C ^[1]; Close, F E ^[2]

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1. Physik-Institut, Universitaet Zuerich, CH-8057 Zuerich (Switzerland)
2. Particle Theory, Rutherford-Appleton Laboratory, Chilton, Didcot OX11 0QX (United Kingdom)

Following the discovery of two new scalar mesons {ital f}{sub 0}(1370) and {ital f}{sub 0}(1500) at the Low Energy Antiproton Ring at CERN, we argue that the observed properties of this pair are incompatible with them both being {ital QQ{vert_bar}} mesons. We show instead that {ital f}{sub 0}(1500) is compatible with the ground state glueball expected around 1500 MeV mixed with the nearby states of the 0{sup +}{sup +}{ital Q}{ital Q}{vert_bar} nonet. Tests of this hypothesis include the prediction of a further scalar state {ital f}{sub 0}{sup {prime}}(1500{endash}1800) which couples strongly to {ital KK{vert_bar}}, {eta}{eta}, and {eta}{eta}{prime}. Signatures for a possible tensor glueball at {approximately}2 GeV are also considered. {copyright} {ital 1995 The American Physical Society.}

• OSTI ID: 256724
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIKAONS
ETA MESONS
ETA PRIME-958 MESONS
GLUEBALLS
GROUND STATES
KAONS
QUARKONIUM
SCALAR MESONS