Event calendar file
High Energy Physics Seminars
Probing the evolution of heavy-ion collisions with hadronic resonances measured by ALICE experiment at the LHC
by Ms. Neelima Agrawal (IIT, Mumbai)
Monday, May 21, 2018
from
to
(Asia/Kolkata)
at TIFR, Mumbai ( AG-66 )
at TIFR, Mumbai ( AG-66 )
| Description |
The observation of the modification of hadronic resonance production in heavy-ion collisions allows one to infer the presence of a prolonged hadronic phase after hadronisation. The decay daughters of short-lived resonances suffer re-scattering in the dense hadronic medium, which modifies their correlations and hence the experimentally measured yields. The ALICE experiment has measured the production of a rich set of hadronic resonances, such as ρ(770)0, K*(892)0, Φ(1020), Σ(1385)±, Λ(1520) and Ξ(1530)0, in pp, p-Pb and Pb-Pb collisions at various energies at the LHC.
New results on first-ever measurement of the production of Λ(1520) resonances measured in Pb-Pb collisions at √s(NN ) = 2.76 TeV with the ALICE detector at the LHC will be presented together with complementary results from other hadronic resonances. The integrated production yield ratio Λ(1520)/Λ in the central Pb-Pb collision is
observed to be suppressed with respect to peripheral Pb-Pb, lower energy pp and d-Au collisions and with respect to predictions from statistical hadronisation models. The observed suppression of Λ(1520)/Λ adds further support to the existence of a prolonged hadronic phase in heavy-ion collisions, as already evidenced by K*/K and
ρ/π measurement. |
