Speaker
Description
We present the extraction of the temperature by analyzing the charged particle transverse momentum spectra in lead-lead (Pb-Pb) and proton-proton (${\bf pp}$) collisions at LHC energies from the ALICE Collaboration using the Color String Percolation Model (CSPM). From the measured energy density ${\boldsymbol \varepsilon}$ and the temperature T the dimensionless quantity $ {\boldsymbol \varepsilon/}T^{4}$ is obtained to get the degrees of freedom (DOF), ${\boldsymbol \varepsilon}/T^{4}$ = DOF ${\boldsymbol \pi^{2}}$/30. We observe for the first time a two-step behavior in the increase of DOF, characteristic of deconfinement, above the hadronization temperature at temperature $\sim$ 210 MeV for both Pb-Pb and ${\bf pp}$ collisions and a sudden increase to the ideal gas value of $\sim $ 47 corresponding to three quark flavors in the case of Pb-Pb collisions.
Details
Dr Aditya Nath Mishra
Wigner Research Centre for Physics, Budapest, Hungary
https://wigner.hu/en
| Is this abstract from experiment? | No |
|---|---|
| Name of experiment and experimental site | N/A |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | Yes |
