Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator Fragments
The size and evolution of the matter created in a relativistic heavy-ion collision strongly depend on collision geometry, defined by centrality. Experimentally the centrality of collisions can be characterized by the measured multiplicities of the produced particles at midrapidity or by the energy m...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Particles |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-712X/6/2/32 |
| _version_ | 1797593093470420992 |
|---|---|
| author | Ilya Segal |
| author_facet | Ilya Segal |
| author_sort | Ilya Segal |
| collection | DOAJ |
| description | The size and evolution of the matter created in a relativistic heavy-ion collision strongly depend on collision geometry, defined by centrality. Experimentally the centrality of collisions can be characterized by the measured multiplicities of the produced particles at midrapidity or by the energy measured in the forward rapidity region, which is sensitive to the spectator fragments. This serves as a proxy for the true collision centrality, as defined by the impact parameter in the models of collisions. In this work, the procedure for centrality determination based on Monte-Carlo sampling of spectator fragments has been proposed. The validity of the procedure has been checked using the fully reconstructed DCM-QGSM-SMM model events and published data from the NA61/SHINE experiment. |
| first_indexed | 2024-03-11T02:03:54Z |
| format | Article |
| id | doaj.art-163f3e134a0b4e06ae808db977d8e647 |
| institution | Directory Open Access Journal |
| issn | 2571-712X |
| language | English |
| last_indexed | 2024-03-11T02:03:54Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Particles |
| spelling | doaj.art-163f3e134a0b4e06ae808db977d8e6472023-11-18T11:59:15ZengMDPI AGParticles2571-712X2023-05-016256857910.3390/particles6020032Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator FragmentsIlya Segal0Moscow Engineering Physics Institute, National Research Nuclear University, Kashirskoe Highway 31, 115409 Moscow, RussiaThe size and evolution of the matter created in a relativistic heavy-ion collision strongly depend on collision geometry, defined by centrality. Experimentally the centrality of collisions can be characterized by the measured multiplicities of the produced particles at midrapidity or by the energy measured in the forward rapidity region, which is sensitive to the spectator fragments. This serves as a proxy for the true collision centrality, as defined by the impact parameter in the models of collisions. In this work, the procedure for centrality determination based on Monte-Carlo sampling of spectator fragments has been proposed. The validity of the procedure has been checked using the fully reconstructed DCM-QGSM-SMM model events and published data from the NA61/SHINE experiment.https://www.mdpi.com/2571-712X/6/2/32heavy-ion collisionscentrality determinationNA61/SHINEMPD experimentsNICA |
| spellingShingle | Ilya Segal Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator Fragments Particles heavy-ion collisions centrality determination NA61/SHINE MPD experiments NICA |
| title | Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator Fragments |
| title_full | Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator Fragments |
| title_fullStr | Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator Fragments |
| title_full_unstemmed | Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator Fragments |
| title_short | Centrality Determination in Heavy-Ion Collisions Based on Monte-Carlo Sampling of Spectator Fragments |
| title_sort | centrality determination in heavy ion collisions based on monte carlo sampling of spectator fragments |
| topic | heavy-ion collisions centrality determination NA61/SHINE MPD experiments NICA |
| url | https://www.mdpi.com/2571-712X/6/2/32 |
| work_keys_str_mv | AT ilyasegal centralitydeterminationinheavyioncollisionsbasedonmontecarlosamplingofspectatorfragments |