Study of D sJ decays to D + K S0 and D 0 K + final states in pp collisions
Journal
Journal of High Energy Physics
Journal Volume
2012
Journal Issue
10
Date Issued
2012
Author(s)
Aaij, R. et al. (LHCb Collaboration)
Abstract
A study of D+KS0 and D0K + final states is performed in a sample of 1.0 fb-1 of pp collision data collected at a centre-of-mass energy of √s = 7TeV with the LHCb detector. We confirm the existence of the Ds1 *(2700)+ and DsJ* (2860)+ excited states and measure their masses and widths to be m(Ds1* (2700)+) = 2709:2 ± 1:9(stat) ± 4:5(syst) MeV/c2;Γ(Ds1 *(2700)+) = 115:8 ± 7:3(stat) ± 12:1(syst) MeV/c2; m(DsJ*(2860) +) = 2866:1 ± 1:0(stat) ± 6:3(syst) MeV/c2; Γ(DsJ*(2860)+) = 69:9 ± 3:2(stat) ± 6:6(syst) MeV/c2.
Type
journal article