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I Caprini

Publications and source records attributed to I Caprini.

8 recordsLinked to original sources
PubMed2006

Mass and width of the lowest resonance in QCD.

We demonstrate that near the threshold, the pi pi scattering amplitude contains a pole with the quantum numbers of the vacuum--commonly referred to as the sigma--and determine its mass and width within small uncertainties. Our derivation does not involve models or parametrizations but relies on a straightforward calculation based on the Roy equation for the isoscalar S wave.

Journal Article↗