Defining medium-specific condensates in QCD sum rules for D and B mesons
Defining medium-specific condensates in QCD sum rules for D and B mesons
Buchheim, T.; Hilger, T.; Kämpfer, B.
QCD sum rules for D and B mesons in a strongly interacting environment require the decomposition of Gibbs averaged operators related to tensor structures. We present a procedure to decompose these operators into vacuum and medium-specific parts, thus defining plain medium-specific condensates with coefficients vanishing in vacuum. Our decomposition allows for an identification of potential elements of order parameters for chiral restoration, in particular for higher mass-dimension quark-condensates which would be masked otherwise if operators with uncontracted Lorentz indices would be linked to DIS amplitudes.
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Contribution to WWW
arXiv:1409.2228 [nucl-th]: http://arxiv.org/abs/arXiv:1409.2228 -
Nuclear and Particle Physics Proceedings 258(2015), 213
DOI: 10.1016/j.nuclphysbps.2015.01.046
Cited 5 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-20846
Publ.-Id: 20846