Energy dependence of femtoscopy properties of pion source in nuclear collisions
Abstract
In the paper energy dependence of femtoscopy characteristics of pion emission region at freezeout is investigated for collisions of various ions and for all experimentally available energies. For the first time the normalized values of radii and volume of source are used for energy dependence. This approach allows us to expand the set of interaction types, in particular, on nonsymmetrical nucleusnucleus collisions which can be studied in the framework of common approach. There are no the sharp changing of femtoscopic parameter values, in particular, $R_{o}/R_{s}$ with increasing of $\sqrt{s_{NN}}$ which were predicted by some phenomenological models as signature of first order phase transition in strongly interacting matter. The generalized parameterization for femtoscopic correlation function is suggested.
 Publication:

arXiv eprints
 Pub Date:
 December 2013
 DOI:
 10.48550/arXiv.1312.4269
 arXiv:
 arXiv:1312.4269
 Bibcode:
 2013arXiv1312.4269O
 Keywords:

 Nuclear Experiment;
 High Energy Physics  Phenomenology
 EPrint:
 12 pages, 5 figures