NUKLEONIKA 2004, 49(Supplement 2):s19-s21

SINGLE PARTICLE SPECTRA FROM INFORMATION THEORY POINT OF VIEW

Fernando S. Navarra1, Oleg V. Utyuzh2, Grzegorz Wilk2, Zbigniew Włodarczyk3

1 Instituto de Física, Universidade de Saő Paulo, Caixa Postal 66318, 05389-970 Saő Paulo, Brazil,
2 Nuclear Theory Department, The Andrzej Sołtan Institute for Nuclear Studies, 69 Hoża Str., 00-681 Warsaw, Poland,
3 Institute of Physics, Świętokrzyska Academy, 15 Świętokrzyska Str., 25-405 Kielce, Poland

It is demonstrated how to obtain the least biased description of a single particle spectra measured in all multiparticle production processes by using an information theory approach (known also as MaxEnt approach). The case of e+e- annihilation in hadrons process is discussed in more detail as an example. Comparison between the MaxEnt approach and a simple dynamical model based on the cascade process is presented as well.