Femtoscopic and Nonfemtoscopic Two-Particle Correlations in 𝐴+𝐴 and 𝑝+𝑝 Collisions at RHIC and LHC Energies

Figure 7

The interferometry volume dependency on charged particles multiplicity. The curve fragments in the middle correspond to the HKM prediction for 𝑝+𝑃𝑏 collision at the LHC energy √𝑠=5.02 GeV. The upper one is related to the initial transverse system size 𝑅=1.5 fm and for the two lower ones 𝑅=0.9 fm. The curves at the left and at the right represent the HKM results for 𝑝+𝑝 and 𝐴+𝐴 central collisions respectively, compared to the experimental data at AGS, SPS, RHIC, and LHC, taken from papers [42, 80–87]. The 𝑝𝑝 volumes are calculated as a product 𝑅_out𝑅_side𝑅_long of respective experimental radii. The blue lines correspond to pure HKM results, whereas the quantum corrections to them are presented by the red lines. Figure is taken from [40].