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Mini-review on QCD spectral sum rules
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Taking the example of the most popular and well-established Borel / Laplace / Exponential sum rule (LSR), I shortly review some of its recent applications in hadron physics namely the estimates of non-perturbative condensates, the determination of the light and heavy quark masses, the extraction of the heavy-light decay constants, the estimates of charmonium and bottomium molecule masses and the properties of scalar gluonium. In addition to the standard \tau (sum rule variable) and t_c (QCD continuum threshold) stablity criteria, I introduce a new stability criterion versus the arbitrary QCD subtraction point \mu for extracting the optimal results when radiative QCD corrections are included. Future improvements on further uses of QCD spectral sum rules (QSSR) are commented.
Forward citations
Cited by 2 Pith papers
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Beyond Borel Windows: A Systematic Optimization Framework for QCD Sum Rules
A new OPE-entropy-based optimization framework for QCD sum rule windows predicts the fully charmed 2++ tetraquark mass at 6.32 ± 0.11 GeV.
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Vector mesons leading-twist longitudinal distribution amplitudes and related semi-leptonic decays within QCD sum rules
New QCD sum-rule calculation gives ξ-moments up to tenth order and PLP-model distribution amplitudes for ρ, K*, φ, which are then used to recalculate D_(s)→V semileptonic observables.
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