A study of pion fluctuation and correlation in heavy-ion collisions Swarnapratim Bhattacharyya, Maria Haiduc, Alina Tania Neagu and Elena Firu Eur. Phys. J. A, 52 9 (2016) 301 Published online: 30 September 2016 DOI: 10.1140/epja/i2016-16301-1