期刊
EUROPEAN PHYSICAL JOURNAL C
卷 74, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-014-2830-6
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- SCOAP3/License Version CC BY 4.0
Mesons with quantum numbers cannot be represented as simple quark-antiquark pairs. We explore hybrid configurations in the light meson sector comprising a quark, an antiquark and an excited gluon, studying the properties of such states in a phenomenological model inspired by the gauge/gravity correspondence. The computed mass, compared to the experimental mass of the candidates , and , favours as the lightest hybrid state. An interesting result concerns the stability of hybrid mesons at finite temperature: they disappear from the spectral function (i.e. they melt) at a lower temperature with respect to other states, light vector and scalar mesons and scalar glueballs.
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