Physics:Track significance

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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]

Formula

[math]\displaystyle{ S= a_o/Error(a_o) }[/math]

References

  1. Abbott, B. (1999). "Measurement of W and Z boson production cross sections in pp collisions at s = 1.8 TeV". Physical Review D 60 (5): 052003. doi:10.1103/PhysRevD.60.052003. Bibcode1999PhRvD..60e2003A. 
  2. Onishchuk, Yuriy (2010). "Production of heavy flavours at HERA" (in English). Nuclear Physics B: Proceedings Supplements 207: 383–386. doi:10.1016/j.nuclphysbps.2010.10.100. ISSN 0920-5632. Bibcode2010NuPhS.207..383O. http://inis.iaea.org/Search/search.aspx?orig_q=RN:42068844.