Oleg Teryaev BLTP, JINR. Chiral magnetic effect for heavy and strange quarks Physics at NICA ( iVth roundtable workshop) Dubna , JINR, September 9, 2009. Outline. Strange quarks as heavy ones: Vacuum and (multiscale) hadrons Axial anomaly and Heavy quarks polarization in nucleon
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BLTP, JINRChiral magnetic effect for heavy and strange quarksPhysics at NICA(iVth roundtable workshop)Dubna, JINR, September 9, 2009
In nucleon (no valence “heavy” quarks) rather than in vacuum - may be considered heavy in comparison to small genuine higher twist – multiscale nucleon picture
In vacuum Strange quark mass close to matching scale of heavy and light quarks – relation between quark and gluon vacuum condensates (cancellation of classical and quantum symmetry breaking – for trace anomaly).
The same – for axial anomaly
Non-complete cancellation of mass and anomaly terms (97)
Gluons correlation with nucleon spin – twist 4 operator NOT directly related to twist 2 gluons helicity BUT related by QCD EOM to singlet twist 4 correction (colour polarisability) f2 to g1
“Anomaly mediated” polarisation of heavy quarks
Small (intrinsic) charm polarisation
Consider STRANGE as heavy! – CURRENT strange mass squared is ~100 times smaller – -5% - reasonable compatibility to the data! (But problem with DIS and SIDIS)
Current data on f2 – somewhat larger