REVIEW
Squeezed condensate of gluons and $\eta-\eta'$ mass difference
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
abstract
We consider a mechanism to create the $\eta - \eta'$ mass difference by the gluon anomaly in a squeezed vacuum. We find that the mass shift of the $\eta_0$ governing this mass difference is determined by the magnetic part of the gluon condensate. For the squeezed vacuum this magnetic part coincides with the total gluon condensate, so that we get a relation between the gluon condensate and the mass shift of the $\eta_0$ as a function of the strong coupling constant $\alpha_s$. The values of the gluon condensate obtained through this relation are compared with the value by Shifman, Vainshtein and Zakharov and the recent update values by Narison.
Discussion (0). Continue with ORCID to comment.