Light vector correlator in medium: Wilson coefficients up to dimension 6 operators

Hyung Joo Kim; Philipp Gubler; Su Houng Lee

doi:10.1016/j.physletb.2017.06.047

Light vector correlator in medium: Wilson coefficients up to dimension 6 operators

Hyung Joo Kim, Philipp Gubler, Su Houng Lee

Department of Physics

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

As an improvement of the QCD sum rule method to study modifications of light vector mesons in nuclear matter and/or at finite temperature, we calculate the Wilson coefficients of all independent gluonic non-scalar operators up to dimension 6 in the operator product expansion (OPE) of the vector channel for light quarks. To obtain the gluon part of the light quark OPE from the heavy quark one, we also compute the heavy quark expansion of the relevant quark condensates. Together with the results for the quark operators that are already available in the literature, this completes the OPE of the vector channel in a hot or dense medium for operators up to dimension 6.

Original language	English
Pages (from-to)	194-199
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	772
DOIs	https://doi.org/10.1016/j.physletb.2017.06.047
Publication status	Published - 2017 Sept 10

Bibliographical note

Publisher Copyright:
© 2017 The Authors

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2017.06.047

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AB - As an improvement of the QCD sum rule method to study modifications of light vector mesons in nuclear matter and/or at finite temperature, we calculate the Wilson coefficients of all independent gluonic non-scalar operators up to dimension 6 in the operator product expansion (OPE) of the vector channel for light quarks. To obtain the gluon part of the light quark OPE from the heavy quark one, we also compute the heavy quark expansion of the relevant quark condensates. Together with the results for the quark operators that are already available in the literature, this completes the OPE of the vector channel in a hot or dense medium for operators up to dimension 6.

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

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ER -

Light vector correlator in medium: Wilson coefficients up to dimension 6 operators

Abstract

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