Study of DsJ decays to D+KS and D0K+ final states in pp collisions

The LHCb Collaboration, Matthew Needham, Franz Muheim, Peter Clarke, Yuehong Xie, Stephan Eisenhardt

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A study of D+\KS and D0K+ final states is performed in a sample of 1.0/fb of pp collision data collected at a centre-of-mass energy of 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)^+) &=& 2709.2 \pm 1.9({stat})\pm\,\,\,4.5({syst}) {MeV}/c^2,\cr \Gamma(D_{s1}^*(2700)^+) &=& \,\,\,115.8 \pm 7.3({stat}) \pm12.1({syst}) {MeV}/c^2,\cr m(D_{sJ}^*(2860)^+) &=& 2866.1 \pm 1.0({stat}) \pm\,\,\,6.3({syst}) {MeV}/c^2,\cr \Gamma(D_{sJ}^*(2860)^+) &=& \,\,\,\,\,\,69.9 \pm 3.2({stat}) \pm\,\,\,6.6({syst}) {MeV}/c^2.\cr {eqnarray}
Original languageEnglish
Pages (from-to)151
Number of pages1
JournalJournal of High Energy Physics
Early online date25 Jul 2012
Publication statusPublished - Oct 2012


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