Measurement of the production of (anti)nuclei in p–Pb collisions at √sNN = 8.16 TeV

• Autor(a) principal: Acharya, Shreyasi
• Data de Publicação: 2023
• Outros Autores: Gay Ducati, Maria Beatriz, Pereira, Luis Gustavo, ALICE Collaboration
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/270899
• topic: Aceleradores de partículas; Colisao de ions pesados

Measurements of (anti)proton, (anti)deuteron, and (anti)3He production in the rapidity range −1 < y < 0 as a function of the transverse momentum and event multiplicity in p–Pb collisions at a center-of-mass energy per nucleon–nucleon pair √sNN = 8.16 TeV are presented. The coalescence parameters B2 and B3, measured as a function of the transverse momentum per nucleon and of the mean charged-particle multiplicity density, confirm a smooth evolution from low to high multiplicity across different collision systems and energies. The ratios between (anti)deuteron and (anti)3He yields and those of (anti)protons are also reported as a function of the mean charged-particle multiplicity density. A comparison with the predictions of the statistical hadronization and coalescence models for different collision systems and center-of-mass energies favors the coalescence description for the deuteron-to-proton yield ratio with respect to the canonical statistical model.