Author
S. Debnath
Bio: S. Debnath is an academic researcher from Indian Association for the Cultivation of Science. The author has contributed to research in topics: Quantum chromodynamics & Mixing (physics). The author has an hindex of 2, co-authored 2 publications receiving 5 citations.
Papers
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TL;DR: The anomalous Ward identities were solved in the framework of QCD in this paper, and an important outcome of this calculation is the possibility of an extremely small width for ι→γγ decay mode.
Abstract: The anomalous Ward identities are solved in the framework of QCD. An important outcome of this calculation is the possibility of an extremely small width for ι→γγ decay mode.
3 citations
TL;DR: In this article, the mixing of the glueball candidate with η and η′ was studied in a chiral symmetry breaking framework, and it was shown that the octet-singlet mixing angle is quite large.
Abstract: The mixing of the glueball candidate⇌i(1,460) with η and η′ is studied in a chiral symmetry breaking framework. Using the solutions of anomalous Ward identities for flavourU(3)×U(3), we find that the octet-singlet mixing angle is quite large and that our results are consistent with a large glueball component in⇌i(1,460) with moderate gluonium mixing in η and η′.
2 citations
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9 citations
CERN1
TL;DR: In this article, it was shown that a pure 0− glueball with mass around 1460 MeV decays predominantly into KKπ, and that the interpretation of ι(1460) as a 0 − glueball is strongly supported.
8 citations
TL;DR: In this article, the SU(3) flavour structure of ι(1460) is exploited to seek consistency between vector meson dominance and anomalous Ward identities, and it is shown that a minimum of 10 to 20% breaking in nonet symmetry is necessary to get an overall fit with the radiative rates of low-lying η and η′.
Abstract: TheSU(3) flavour structure of ι(1460) is exploited to seek consistency between vector meson dominance and anomalous Ward identities. Our analysis shows that a minimum of 10 to 20% breaking in nonet symmetry is necessary to get an overall fit with the radiative rates of low-lying η and η′.
3 citations
TL;DR: In this article, the mixing of the glueball candidate with η and η′ was studied in a chiral symmetry breaking framework, and it was shown that the octet-singlet mixing angle is quite large.
Abstract: The mixing of the glueball candidate⇌i(1,460) with η and η′ is studied in a chiral symmetry breaking framework. Using the solutions of anomalous Ward identities for flavourU(3)×U(3), we find that the octet-singlet mixing angle is quite large and that our results are consistent with a large glueball component in⇌i(1,460) with moderate gluonium mixing in η and η′.
2 citations
TL;DR: In this paper, the pseudoscalar densities were used to obtain bounds on the quark vacuum condensate ratio (ss)/(uu) for the U(1) sector.
Abstract: Positivity conditions on the spectral representation of the pseudoscalar densities are used to obtain bounds on the quark vacuum condensate ratio (ss)/(uu). These relate (ss)/(uu) to the topological susceptibility G(0) of the U(1) sector and appear to favour a smaller value for this quantity than is given by the current-algebra result.
2 citations