ALICE-3 is a future upgrade of the current ALICE experiment to be operated at the high-luminosity Large Hadron Collider at CERN after 2030. One of the physics objectives of the experiment is to probe ...the hot and dense QCD matter produced in heavy-ion collisions by measuring the production of open charm hadrons. The ALICE-3 detector is equipped to measure the production of ground and excited states of
D
‑mesons in decay channels with charged particles in the final state. Results are presented from feasibility studies of recording of open charm hadrons in decay channels with neutral photons or mesons in the final state using the large acceptance electromagnetic calorimeter.
The use of different methods for analyzing the procurement of drugs for state needs made it possible to reveal the excessive range of drugs included in state contracts, as well as the low efficiency ...of the use of funds.
Short-lived resonances have always played an important role in the physical programs of heavy-ion experiments. The resonances measured in the hadronic decay channels probe strangeness production, ...hadronization at intermediate and high transverse momenta, and rescattering and regeneration effects in the hadronic phase of nucleus–nucleus collisions at various energies. Properties of the resonances produced in collisions of heavy nuclei at NICA accelerator energies have never been studied in detail. Properties of the resonances and their sensitivity to various studies of collisions of Au nuclei expected at NICA energies are considered. Results of feasibility studies for reconstruction of resonances in the MPD experimental setup are presented and discussed.
Abstract
Photons serve as valuable probes of the properties of the hot and dense nuclear matter created in collisions of heavy ions. Thermal photon spectra at RHIC and LHC energies indicate that the ...temperature of the produced medium far exceeds the temperature of the phase transition to the quark-gluon plasma in lattice QCD calculations. Measurements of thermal photon spectra in heavy ion collisions at lower energies at the future NICA collider may help to trace the transition from partonic to hadronic degrees of freedom. In this contribution, feasibility studies on thermal photon measurements using the photon conversion method in the future MPD experiment at NICA will be reviewed. In this work, a possibility to increase photon reconstruction efficiency with a dedicated conversion layer is presented and feasibility to probe the material budget of the experiment with converted photons is discussed.
The K*(892)0 and Φ(1020) mesons are copiously produced in hadronic and heavy-ion collisions and carry a wealth of information on different aspects of the interactions, including the properties of the ...hadronic phase, relative interplay of the radial flow and coalescence at intermediate momentum. For these reasons, measurements of K*(892)0 and Φ(1020) production is an important part of the experimental program of the MPD experiment at NICA. We discuss prospects for K*(892)0 and Φ(1020) measurements in the MPD experimental setup as well as results of the feasibility studies performed using the full-scale Monte Carlo simulations of the detector response.
Abstract
Thermal photons serve as valuable probes of the hot and dense medium produced in heavy ion collisions. The effective thermal photon temperature measured at RHIC and LHC energies far exceeds ...the temperature predicted for the phase space transition into the deconfined state of quarks and gluons, known as quark-gluon plasma (QGP). Direct photon measurements in heavy ion collisions at the future NICA collider may help to estimate the effective temperature of the produced medium at lower energies and trace the transition from QGP to the hadron gas state. In this contribution, we present feasibility studies on the thermal photon measurements in AuAu collisions using the photon conversion method in the MPD experiment at NICA.
Thermal photons are a valuable source of information about the properties of hot and dense matter produced in relativistic heavy-ion collisions. The effective temperature measured at RHIC and LHC ...energies greatly exceeds the temperature of the expected phase transition to the state with deconfined quarks and gluons known as quark–gluon plasma (QGP). Measurements of direct photons in heavy-ion collisions at the NICA accelerator will enable assessment of the effective temperature of the emerging medium at lower energies and trace the transition from partonic to hadronic degrees of freedom. The feasibility of studying thermal photons in the MPD experiment at NICA in Au–Au collisions using the photon conversion method is analyzed.
The MPD experiment is aimed to study strongly interacting matter in nucleus-nucleus collisions at the future NICA collider in the energy range 4-11 GeV per nucleon pair. Neutral pion and η ...measurements via two-photon decays will allow the MPD experiment to extend the variety of registered particle species and will provide important information on dynamics and properties of the medium created in heavy ion collisions at NICA energies. The measurement of neutral pion and η meson spectra is also important as a first step towards the analysis of thermal photons sensitive to the temperature of the produced medium. In this contribution, the feasibility of neutral meson production measurements in the two-photon channel via photon conversions will be presented, and implications for the study of thermal photons will be discussed.
Initial results are presented from studying the possibility of measuring different resonances on the experimental setup of the MPD spectrometer of the NICA accelerator, along with the first ...assessments of the impact the hadron phase has on the properties of resonances in heavy ion collisions at NICA energies.
The inability of vehicles in some cases to deliver lifeguards and equipment to hard-to-reach places has contributed to the development of the idea of using horses in such situations. It would not be ...difficult for horses to overcome places considered difficult to access, and this work would be done in a much shorter time. In this case, divers would not have to engage in heavy physical labor to carry weights. The developed methods of horse training and rescue training were tested, which confirmed the research of specialists.
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