Study of $D_{sJ}$ decays to $D^+\KS$ and $D^0K^+$ final states in $pp$ collisions

Journal article

A study of $D^+\KS$ and $D^0K^+$ final states is performed in a sample of 1.0/fb of $pp$ collision data collected at a centre-of-mass energy of $\sqrt{s}=7$ TeV with the \lhcb detector. We confirm the existence of the $D_{s1}^*(2700)^+$ and $D_{sJ}^*(2860)^+$ excited states and measure their masses and widths to be {eqnarray} m(D_{s1}^*(2700)^+) and=and 2709.2 \pm 1.9({stat})\pm\,\,\,4.5({syst}) {MeV}/c^2,\cr \Gamma(D_{s1}^*(2700)^+) and=and \,\,\,115.8 \pm 7.3({stat}) \pm12.1({syst}) {MeV}/c^2,\cr m(D_{sJ}^*(2860)^+) and=and 2866.1 \pm 1.0({stat}) \pm\,\,\,6.3({syst}) {MeV}/c^2,\cr \Gamma(D_{sJ}^*(2860)^+) and=and \,\,\,\,\,\,69.9 \pm 3.2({stat}) \pm\,\,\,6.6({syst}) {MeV}/c^2.\cr {eqnarray}

Authors: collaboration, L; Aaij, R; Beteta, C; Adametz, A; Adeva, B

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Springer-Verlag
• Journal: Journal of High Energy Physics
• Volume: 1210
• Issue: 10
• Pages: 151
• Publication date: 2012-10-01
• DOI: 10.1007/JHEP10(2012)151
• EISSN: 1029-8479
• ISSN: 1029-8479
• Keywords: hep-ex