First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE
The measurement of open charm meson production provides a tool for the investigation of the properties of the hot and dense matter created in nucleus-nucleus collisions at relativistic energies. In particular, charm mesons are of vivid interest in the context of the study of the nature of the phaset...
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| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_04004.pdf |
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| author | Merzlaya Anastasia |
| author_facet | Merzlaya Anastasia |
| author_sort | Merzlaya Anastasia |
| collection | DOAJ |
| description | The measurement of open charm meson production provides a tool for the investigation of the properties of the hot and dense matter created in nucleus-nucleus collisions at relativistic energies. In particular, charm mesons are of vivid interest in the context of the study of the nature of the phasetransition between confined hadronic matter and the quark-gluon plasma. Recently, the NA61/SHINE experimental setup was upgraded with a high spatial resolution Vertex Detector which enables the reconstruction of secondary vertices from open charm meson decays.
The first direct neutral D meson yields at the SPS energy regime will be shown. The analysis used the 20% most central Xe+La collisions at 150A GeV/c from the data set collected in 2017. It allowed the estimation of the mid-rapidity yields (dN/dy) of D0 + D¯0 using their π± + K∓ decay channels and phase space corrections derived from the three models AMPT, PHSD, and PYTHIA/Angantyr. The results will be compared and discussed in the context of several model calculations including statistical and dynamical approaches. |
| format | Article |
| id | doaj-art-143c238b593446f4abf81dc4db8753aa |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-143c238b593446f4abf81dc4db8753aa2025-02-05T10:53:01ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013160400410.1051/epjconf/202531604004epjconf_sqm2024_04004First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINEMerzlaya Anastasia0University of OsloThe measurement of open charm meson production provides a tool for the investigation of the properties of the hot and dense matter created in nucleus-nucleus collisions at relativistic energies. In particular, charm mesons are of vivid interest in the context of the study of the nature of the phasetransition between confined hadronic matter and the quark-gluon plasma. Recently, the NA61/SHINE experimental setup was upgraded with a high spatial resolution Vertex Detector which enables the reconstruction of secondary vertices from open charm meson decays. The first direct neutral D meson yields at the SPS energy regime will be shown. The analysis used the 20% most central Xe+La collisions at 150A GeV/c from the data set collected in 2017. It allowed the estimation of the mid-rapidity yields (dN/dy) of D0 + D¯0 using their π± + K∓ decay channels and phase space corrections derived from the three models AMPT, PHSD, and PYTHIA/Angantyr. The results will be compared and discussed in the context of several model calculations including statistical and dynamical approaches.https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_04004.pdf |
| spellingShingle | Merzlaya Anastasia First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE EPJ Web of Conferences |
| title | First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE |
| title_full | First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE |
| title_fullStr | First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE |
| title_full_unstemmed | First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE |
| title_short | First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE |
| title_sort | first d0 d0 measurement in nucleus nucleus collisions at sps energies with na61 shine |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_04004.pdf |
| work_keys_str_mv | AT merzlayaanastasia firstd0d0measurementinnucleusnucleuscollisionsatspsenergieswithna61shine |