Measurement of prompt and non-prompt ${\rm D}^{\rm *+}$-meson spin alignment in pp collisions at $\sqrt{s}$ = 13.6 TeV$
Year: 2026
Type: preprint
Abstract: A precise measurement of prompt and non-prompt ${\rm D}^{\rm *+}$-meson spin alignment with respect to the helicity and production axes in proton-proton (pp) collisions at $\sqrt{s} = 13.6$ TeV is presented, using data collected with the ALICE experiment at the LHC. The spin alignment is quantified by measuring the diagonal spin density matrix element $ρ_{\rm 00}$ for ${\rm D}^{\rm *+}$ mesons at midrapidity ($|y|<0.8$). The measurement is performed in the transverse-momentum ($p_{\rm T}$) range $3
Source: arXiv (Cornell University)
Author: ALICE Collaboration
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: CERN, Fundação de Amparo à Pesquisa do Estado de São Paulo, National Natural Science Foundation of China, Österreichischen Akademie der Wissenschaften, Ministry of Education of the People's Republic of China, Austrian Science Fund, Hrvatska Zaklada za Znanost, Financiadora de Estudos e Projetos, State Committee of Science, Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
OpenAlex ID: W7220563272