1. Strangeness Enhancement in p + p, p + Pb, and Pb + Pb Collisions at LHC Energies
- Author
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Tetsufumi Hirano, Michito Okai, Yuuka Kanakubo, and Yasuki Tachibana
- Subjects
Physics ,Large Hadron Collider ,Nuclear Theory ,High Energy Physics::Phenomenology ,Hadron ,FOS: Physical sciences ,Multiplicity (mathematics) ,Strangeness ,High multiplicity ,Nuclear Theory (nucl-th) ,Nuclear physics ,High Energy Physics - Phenomenology ,High Energy Physics - Phenomenology (hep-ph) ,Pion ,Quark–gluon plasma ,Yield ratio ,High Energy Physics::Experiment ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment - Abstract
We investigate whether the quark gluon plasma (QGP) is created in small colliding systems from analyses of various hadron yields and their ratios in proton-proton (p+p), proton-lead (p+Pb) and lead-lead (Pb+Pb) collisions at LHC energies. Recently, the ALICE Collaboration reports enhancement of yield ratio of multi-strange hadrons to charged pions as a function of multiplicity at mid-rapidity. Motivated by these results, we develop the dynamical core-corona initialization framework and find that our results describe tendencies of the ALICE data especially for multi-strange hadrons. These results indicate that the QGP is partly formed in high multiplicity events in small colliding systems., Comment: 4 pages, 5 figures; contribution to the proceedings of the 8th International Conference on Quarks and Nuclear Physics (QNP2018), Tsukuba, November 13-17, 2018
- Published
- 2019