A study of D+K0S and D 0 K + 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 D∗s1(2700)+ and D∗sJ(2860)+ excited states and measure their masses and widths to be m(D∗s1(2700)+)=2709.2±1.9(stat)±4.5(syst)MeV/c2,Γ(D∗s1(2700)+)=115.8±7.3(stat)±12.1(syst)MeV/c2,m(D∗sJ(2860)+)=2866.1±1.0(stat)±6.3(syst)MeV/c2,Γ(D∗sJ(2860)+)=69.9±3.2(stat)±6.6(syst)MeV/c2
Study of D-sJ decays to (D+KS0) and (DK+)-K-0 final states in pp collisions
CARDINALE, ROBERTA;FONTANELLI, FLAVIO;PATRIGNANI, CLAUDIA;PETROLINI, ALESSANDRO;SANNINO, MARIO;
2012-01-01
Abstract
A study of D+K0S and D 0 K + 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 D∗s1(2700)+ and D∗sJ(2860)+ excited states and measure their masses and widths to be m(D∗s1(2700)+)=2709.2±1.9(stat)±4.5(syst)MeV/c2,Γ(D∗s1(2700)+)=115.8±7.3(stat)±12.1(syst)MeV/c2,m(D∗sJ(2860)+)=2866.1±1.0(stat)±6.3(syst)MeV/c2,Γ(D∗sJ(2860)+)=69.9±3.2(stat)±6.6(syst)MeV/c2
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