English

Some Considerations concerning the Fluctuation of the Ratios of two Observables

Nuclear Theory 2011-08-04 v2 High Energy Physics - Experiment High Energy Physics - Phenomenology

Abstract

We discuss several possible caveats which arise with the interpretation of measurements of fluctuations in heavy ion collisions. We especially focus on the ratios of particle yields, which has been advocated as a possible signature of a critical point in the QCD phase diagram. We conclude that current experimental observables are not well-defined and are without a proper quantitative meaning.

Keywords

Cite

@article{arxiv.1012.4703,
  title  = {Some Considerations concerning the Fluctuation of the Ratios of two Observables},
  author = {Michael Hauer and Sascha Vogel},
  journal= {arXiv preprint arXiv:1012.4703},
  year   = {2011}
}

Comments

10 pages, 5 figures, updated version as accepted for publication in Physical Review C