Topological susceptibility in the SU(3) gauge theory

Luigi Del Debbio; Leonardo Giusti; Claudio Pica

doi:10.1103/PhysRevLett.94.032003

Topological susceptibility in the SU(3) gauge theory

Luigi Del Debbio, Leonardo Giusti, Claudio Pica

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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Abstrakt

We compute the topological susceptibility for the SU(3) Yang--Mills theory by employing the expression of the topological charge density operator suggested by Neuberger's fermions. In the continuum limit we find r_0^4 chi = 0.059(3), which corresponds to chi=(191 +/- 5 MeV)^4 if F_K is used to set the scale. Our result supports the Witten--Veneziano explanation for the large mass of the eta'.

Originalsprog	Engelsk
Tidsskrift	Physical Review Letters
Vol/bind	94
Udgave nummer	3
Sider (fra-til)	032003
Antal sider	4
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.94.032003
Status	Udgivet - 2004

Dokumenter og links

10.1103/PhysRevLett.94.032003

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Citationsformater

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AU - Giusti, Leonardo

AU - Pica, Claudio

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AB - We compute the topological susceptibility for the SU(3) Yang--Mills theory by employing the expression of the topological charge density operator suggested by Neuberger's fermions. In the continuum limit we find r_0^4 chi = 0.059(3), which corresponds to chi=(191 +/- 5 MeV)^4 if F_K is used to set the scale. Our result supports the Witten--Veneziano explanation for the large mass of the eta'.

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