Polarization and quantum entanglement effects in Bc±→J/ψ+π±+π0\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$B^\\pm _c\\rightarrow J/\\psi +\\pi ^\\pm +\\pi ^0$$\\end{document} process

Abstract

Motivated by the very recent observation of the Bc+→J/ψ+π++π0\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$B^+_c\\rightarrow J/\\psi +\\pi ^+ +\\pi ^0$$\\end{document} decay using proton–proton collision data by the LHCb collaboration, we study the four-body angular distributions and the quantum entanglement effects in the Bc+→J/ψ+π++π0\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$B^+_c\\rightarrow J/\\psi +\\pi ^+ +\\pi ^0$$\\end{document} associated with J/ψ→μ++μ-.\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$J/\\psi \\rightarrow \\mu ^++\\mu ^-.$$\\end{document} The helicity angular distributions are given in the QCD effective theory and the von Neumann entropy is obtained in Bc±→J/ψ(→μ+μ-)+ρ±(→π±π0)\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$B^\\pm _c\\rightarrow J/\\psi (\\rightarrow \\mu ^+\\mu ^-)+\\rho ^\\pm (\\rightarrow \\pi ^\\pm \\pi ^0)$$\\end{document} decay process.