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A search is performed for D-sJ(()()+) mesons in the reactions pp -> D(+KSX)-X-0 and pp -> D*(K+X)-K-0 using data collected at centre-of-mass energies of 7 and 8 TeV with the LHCb detector. For the DK-+(S)0 final state, the decays D(+) -> D-0 pi(+) with D-0 -> K-pi(+) and D-0 -> K-pi(+)pi(+)pi(-) are used. For DK-0(+), the decay D(0) -> D-0 pi(0) with D-0 -> K-pi(+) is used. A prominent D-s1(2536)(+) signal is observed in both DK-+(S)0 and DK-0(+) final states. The resonances D*(s1)(2700)(+) and D*(s3)(2860)(+) are also observed, yielding information on their properties, including spin-parity assignments. The decay D*(s2)(2573)(+) -> D*(+) K-S(0) is observed for the first time, at a significance of 6.9 sigma, and its branching fraction relative to the D*(s2)(2573)(+) -> (D+KS0) decay mode is measured.
Aurelio Bay, Frédéric Blanc, Marie Theres Christin Bachmayer
Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Lesya Shchutska, Elena Graverini, Donal Patrick Hill, Marie Theres Christin Bachmayer, Sebastian Schulte, Aravindhan Venkateswaran, Renato Quagliani, Luis Miguel Garcia Martin, Vitalii Lisovskyi, Surapat Ek-In, Serhii Cholak, Federico Ronchetti, Anni Matilda Kauniskangas, Raphaël van Laak, Ettore Zaffaroni, Elisabeth Maria Niel, Pierre Paul Louis Mayencourt, Brianna Leililani Thielen, Gianluca Zunica, Abdul-Kerim Guseinov, Esteban Curras Rivera, Yifei Song, Radoslav Marchevski, Dimitrios Kaminaris