Symmetry-Scaling Based Complex Network Approach to Explore Exotic Hadronic States in High-Energy Collision

• Published in: Physics of particles and nuclei letters 2019-11, Vol.16 (6), p.779-788
• Main Authors: Bhaduri, S., Bhaduri, A., Ghosh, D.
• Format: Article
• Language: English
• Subjects: Clustering; Coefficients; Collision dynamics; Elementary particles; Leptons; Methods of Physical Experiment; Parameters; Particle and Nuclear Physics; Physics; Physics and Astronomy; Resonance; Scaling; Standard model (particle physics); Symmetry; Transverse momentum; Visibility
• ISSN: 1547-4771; 1531-8567
• DOI: 10.1134/S1547477119060062

Conventionally invariant mass or transverse momentum techniques have been used to probe for any formation of some exotic or unusual resonance states in high energy collision. In this work, we have applied symmetry scaling based complex network approach to study exotic resonance/hadronic states utilizing the clustering coefficients and associated scaling parameter extracted with the complex network based technique of Visibility Graph. We have analyzed the data of Pb–Pb collision data sample at 2.76 TeV from ALICE Collaboration and analyzed different patterns of symmetry scaling, scale-freeness, correlation and clustering among the produced particles. This is a chaos-based complex network technique where simple parameters like Average Clustering Coefficient and Power of Scale-freeness of Visibility Graph (PSVG) may hint at formation of some exotic or unusual resonance states without using conventional methods. From this experiment we may infer that highest range of Average clustering coefficient, might be the resonance states/clusters from where the hadronic decay might have occurred and few clusters with highest value of this parameter may indicate that those clusters may be the ancestors of some strange particles. There have also been extensive study of dilepton production since the study of lepton pair generation in Drell–Yan processes is immensely important as these processes enable us to validate the Standard Model-SM predictions for the fundamental particles interaction at the new energy region and also to probe for new physics beyond SM. Hence we have applied the same methodology and extracted the same parameters for p – p collision data at 8 TeV from CMS, to detect possible resonance states eventually generating lepton pairs.