Multiplicity fluctuations of pions and protons at SPS energy – An in-depth analysis with factorial correlator

Pramana

Pasupati Mandal¹  Subrata Biswas¹  Argha Deb¹  Madhumita Banerjee Lahiri¹  Dipak Ghosh1¹ 

[1] Nuclear and Particle Physics Research Centre, Department of Physics, Jadavpur University, Kolkata 700 032, India$$

关键词: Dynamical fluctuations;    pions;    compound multiplicity;    nucleus–nucleus interactions;    factorial correlator study.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

We compute the factorial correlators to study the dynamical fluctuations of pions and a combination of pions and protons (compound multiplicity) in 32S–AgBr interactions at 200 A GeV. The study reveals that for both pion and compound multiplicity the correlated moments increase with the decrease in bin–bin separation 𝐷, following a power-law, which suggests the self-similarity of multiplicity fluctuation in each case. The results of the analysis also show a consistency with the prediction of 𝛼-model for the existence of intermittency in both cases.

【 授权许可】

Unknown