NEW INSIGHTS ON VECTOR MESONS: A DIALOG BETWEEN $f^{T}_{V}$ AND fV

2008 ◽  
Vol 23 (21) ◽  
pp. 3209-3212
Author(s):  
OSCAR CATÀ

We examine the high energy behavior of the two-point correlators 〈VV〉, 〈TT〉, 〈VT〉 and its implications on the spectrum of spin-1 vector mesons. This leads to an estimate of [Formula: see text] in excellent agreement with the recent sum rule and lattice determinations. This information is later implemented in a hadronic model and used to estimate the value of the magnetic susceptibility of the quark condensate χ0. Our analysis shows that lowest meson resonance may turn out to be a bad approximation for this quantity.

2016 ◽  
Vol 230 (5-7) ◽  
Author(s):  
Ajit J. Thakkar

AbstractA brief review is given of how a constrained dipole oscillator strength distribution (DOSD) is constructed from experimental and possibly theoretical photoabsorption cross-sections with constraints provided by molar refractivity data and the Kuhn–Reiche–Thomas sum rule. Some recent refinements including the imposition of the correct high-energy behavior on the DOSD for homoatomic molecules are discussed and extended to the general molecular case. A sample application to pyridine is given.


2020 ◽  
Vol 101 (6) ◽  
Author(s):  
Matthew Dodelson ◽  
Hirosi Ooguri

1972 ◽  
Vol 6 (9) ◽  
pp. 2483-2487
Author(s):  
Michael Creutz

1989 ◽  
Vol 326 (1) ◽  
pp. 73-107 ◽  
Author(s):  
David J. Gross ◽  
J.L. Mañes

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