Track significance

Track significance, in high energy collision experiments, is defined as the ratio between the impact parameter of a track (distance from the primary vertex) and the estimated error in it.[1][2]

$S=a_{o}/Error(a_{o})$

References

Abbott, B.; et al. (1999). "Measurement of W and Z boson production cross sections in pp collisions at √s = 1.8 TeV". Physical Review D. 60 (5): 052003. arXiv:hep-ex/9901040. Bibcode:1999PhRvD..60e2003A. doi:10.1103/PhysRevD.60.052003. hdl:1808/15346. S2CID 14109344.
Onishchuk, Yuriy (2010). "Production of heavy flavours at HERA". Nuclear Physics B: Proceedings Supplements. 207: 383–386. Bibcode:2010NuPhS.207..383O. doi:10.1016/j.nuclphysbps.2010.10.100. ISSN 0920-5632.

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