Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE
In recent year, the production of charged Σ hyperons in pp and p–Pb collisions was measured by the ALICE collaboration using several techniques. Historically, the first one used the decay channel Σ+ → pπ0 with reconstruction of the proton with the tracking systems at mid-rapidity and the π0 in the e...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
|
| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_03003.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832098469860343808 |
|---|---|
| author | Gordeev Pavel |
| author_facet | Gordeev Pavel |
| author_sort | Gordeev Pavel |
| collection | DOAJ |
| description | In recent year, the production of charged Σ hyperons in pp and p–Pb collisions was measured by the ALICE collaboration using several techniques. Historically, the first one used the decay channel Σ+ → pπ0 with reconstruction of the proton with the tracking systems at mid-rapidity and the π0 in the electromagnetic calorimeter EMCAL or via the photon conversion method. The second technique used the decay channel ∑-± → n¯π± where charged pions are reconstructed with the tracking systems and the anti-neutron in the precise electromagnetic calorimeter PHOS. We present the transverse momentum spectra of charged Σ and its anti-particle measured in pp collisions at √s = 13 and √s = 5 TeV and compare them to predictions of several models. Finally, we discuss expectations from the Run 3 of LHC and in particular the possibility of Σ particle detection with the reconstruction of its decay after traversing several layers of the upgraded silicon tracker. |
| format | Article |
| id | doaj-art-f807ae863568407aa733dccde7206432 |
| 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-f807ae863568407aa733dccde72064322025-02-05T10:53:01ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013160300310.1051/epjconf/202531603003epjconf_sqm2024_03003Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICEGordeev Pavel0IUPAPIn recent year, the production of charged Σ hyperons in pp and p–Pb collisions was measured by the ALICE collaboration using several techniques. Historically, the first one used the decay channel Σ+ → pπ0 with reconstruction of the proton with the tracking systems at mid-rapidity and the π0 in the electromagnetic calorimeter EMCAL or via the photon conversion method. The second technique used the decay channel ∑-± → n¯π± where charged pions are reconstructed with the tracking systems and the anti-neutron in the precise electromagnetic calorimeter PHOS. We present the transverse momentum spectra of charged Σ and its anti-particle measured in pp collisions at √s = 13 and √s = 5 TeV and compare them to predictions of several models. Finally, we discuss expectations from the Run 3 of LHC and in particular the possibility of Σ particle detection with the reconstruction of its decay after traversing several layers of the upgraded silicon tracker.https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_03003.pdf |
| spellingShingle | Gordeev Pavel Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE EPJ Web of Conferences |
| title | Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE |
| title_full | Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE |
| title_fullStr | Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE |
| title_full_unstemmed | Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE |
| title_short | Production of Σ baryons as a function of multiplicity in pp collisions at the LHC with ALICE |
| title_sort | production of σ baryons as a function of multiplicity in pp collisions at the lhc with alice |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_03003.pdf |
| work_keys_str_mv | AT gordeevpavel productionofsbaryonsasafunctionofmultiplicityinppcollisionsatthelhcwithalice |