Blast-wave model description of the Hanbury-Brown-Twiss radii in pp collisions at LHC energies

The blast wave model is applied to the recent data on Hanbury-Brown–Twiss radii in pp collisions, measured by the ALICE Collaboration. A reasonable description of data is obtained for a rather low temperature of the kinetic freeze-out, T $\simeq$ 100 MeV, and the transverse profile corresponding to the emission from a shell of a fairly small width $2 \delta \sim 1.5 fm$. The size and the life-time of the produced system are determined for various multiplicities of the produced particles.