The production of prompt A+c baryons at midrapidity (|y| < 0.5) was measured in central (0-10%) and mid-central (30-50%) Pb-Pb collisions at the center-of-mass energy per nucleon-nucleon pair √sNN = 5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (pT =1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus-nucleus collisions, allowing for an extrapolation down to pT = 0. The pT-differential A+c /D0 ratio is enhanced with respect to the pp measurement for 4 < pT < 8 GeV/c by 3.7 standard deviations (cr), while the pT-integrated ratios are compatible within 1cr. The observed trend is similar to that observed in the strange sector for the A/K0S ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.

S. Acharya, D. Adamov??, A. Adler, J. Adolfsson, G. Aglieri Rinella, M. Agnello, et al. (2023). Constraining hadronization mechanisms with Λ+c/D0 production ratios in Pb-Pb collisions at √SNN=5.02 TeV. PHYSICS LETTERS. SECTION B, 839, 1-14 [10.1016/j.physletb.2023.137796].

Constraining hadronization mechanisms with Λ+c/D0 production ratios in Pb-Pb collisions at √SNN=5.02 TeV

N. Agrawal;A. Alici
Writing – Original Draft Preparation
;
S. Arcelli;F. Bellini;F. Carnesecchi;L. Cifarelli;M. Colocci;F. Ercolessi;M. Giacalone;N. Jacazio;N. Rubini;G. Scioli;S. Strazzi;
2023

Abstract

The production of prompt A+c baryons at midrapidity (|y| < 0.5) was measured in central (0-10%) and mid-central (30-50%) Pb-Pb collisions at the center-of-mass energy per nucleon-nucleon pair √sNN = 5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (pT =1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus-nucleus collisions, allowing for an extrapolation down to pT = 0. The pT-differential A+c /D0 ratio is enhanced with respect to the pp measurement for 4 < pT < 8 GeV/c by 3.7 standard deviations (cr), while the pT-integrated ratios are compatible within 1cr. The observed trend is similar to that observed in the strange sector for the A/K0S ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.
2023
S. Acharya, D. Adamov??, A. Adler, J. Adolfsson, G. Aglieri Rinella, M. Agnello, et al. (2023). Constraining hadronization mechanisms with Λ+c/D0 production ratios in Pb-Pb collisions at √SNN=5.02 TeV. PHYSICS LETTERS. SECTION B, 839, 1-14 [10.1016/j.physletb.2023.137796].
S. Acharya; D. Adamov??; A. Adler; J. Adolfsson; G. Aglieri Rinella; M. Agnello; N. Agrawal; Z. Ahammed; S. Ahmad; S.U. Ahn; I. Ahuja; Z. Akbar; A. Ak...espandi
File in questo prodotto:
File Dimensione Formato  
1-s2.0-S0370269323001302-main.pdf

accesso aperto

Tipo: Versione (PDF) editoriale
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione (CCBY)
Dimensione 959.08 kB
Formato Adobe PDF
959.08 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/951157
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 18
social impact