CP-Violating Effect of QCD Vacuum in Quark Fragmentation

Details CP-Violating Effect of QCD Vacuum in Quark Fragmentation CP-Violating Effect of QCD Vacuum in Quark Fragmentation

1995-06-23

arxiv.org/abs/hep-ph/9506412v2

Phys.Lett. B366 (1996) 311-315

Physics

High Energy Physics

High Energy Physics - Phenomenology

significantly revised and extended version to appear in Phys.Lett.B

Scientific paper

10.1016/0370-2693(95)01329-6

We demonstrate that the non-trivial CP-violating structure of QCD vacuum can lead to an observable effect in $e^+e^-\to q\bar q\to 2$-jet annihilation. We find that the sign of the jet handedness correlation can be opposite to that predicted by factorization of $q~\bar q$ fragmentation and CP-conjugation of the two jets. A simple model estimation of the handedness correlation magnitude is given.

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