Study of $D^{(*)+}_{sJ}$ mesons decaying to $D^{*+} K^0_{\\rm S}$ and $D^{*0} K^+$ final states

Roel Aaij,C. Abellán Beteta,B. Adeva, M. Adinolfi,A. A. Affolder,Ziad Ajaltouni,Simon Akar, J. Albrecht,Federico Alessio, Michael Alexander,S. Ali, G. Alkhazov,P. Alvarez Cartelle, A. A. Alves,Sandra Amato, S. Amerio,Yasmine Amhis, Liupan An,Lucio Anderlini, Guido Andreassi, M. Andreotti,J. E. Andrews, R. B. Appleby,O. Aquines Gutierrez,Flavio Archilli, P. d'Argent, A. Artamonov,Marina Artuso,Elie Aslanides, G. Auriemma,M. Baalouch,Sebastian Bachmann, J. J. Back, A. Badalov, C. Baesso,W. Baldini, R. J. Barlow,C. Barschel,Sergey Barsuk,William Barter,Varvara Batozskaya, Vincenzo Battista, A. Bay, L. Beaucourt, J. Beddow,Franco Bedeschi,Ignacio Bediaga, Lennaert Bel,Violaine Bellee, Nicoletta Belloli,Ivan Belyaev, E. Ben-Haim, G. Bencivenni,Sean Benson,J. Benton,Alexander Berezhnoy,Roland Bernet,A. Bertolin, M. O. Bettler,M. van Beuzekom,Simone Bifani,Pierre Billoir, T. Bird, Alex Birnkraut,Andrea Bizzeti,Thomas Blake,F. Blanc,J. Blouw,S. Blusk,V. Bocci, A.E. Bondar,Nikolay Bondar, W. Bonivento,S. Borghi,Maxim Borisyak,Martino Borsato, T. J. V. Bowcock,E. Bowen, C. Bozzi,Svende Braun, M. Britsch,T. Britton,Jolanta Brodzicka, N. H. Brook,Emma Buchanan,Christopher Burr, A. Bursche,Jan Buytaert,Sandro Cadeddu, R. Calabrese,Marta Calvi,M. Calvo Gomez, P. Campana,D. Campora Perez,Lorenzo Capriotti,Angelo Carbone, G. Carboni,Roberta Cardinale, Alessandro Cardini,Paolo Carniti

arXiv: High Energy Physics - Experiment(2016)

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摘要
A search is performed for $D^{(*)+}_{sJ}$ mesons in the reactions $pp \\to D^{*+} K^0_{\\rm S} X$ and $pp \\to D^{*0} K^+ X$ using data collected at centre-of-mass energies of 7 and 8 TeV with the LHCb detector. For the $D^{*+} K^0_{\\rm S}$ final state, the decays $D^{*+} \\to D^0 \\pi^+$ with $D^0 \\to K^- \\pi^+$ and $D^0 \\to K^- \\pi^+ \\pi^+ \\pi^-$ are used. For $D^{*0} K^+$, the decay $D^{*0} \\to D^0 \\pi^0$ with $D^0 \\to K^- \\pi^+$ is used. A prominent $D_{s1}(2536)^+$ signal is observed in both $D^{*+} K^0_{\\rm S}$ and $D^{*0} K^+$ 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 $D^*_{s2}(2573)^+ \\to D^{*+} K^0_{\\rm S}$ is observed for the first time, at a significance of 6.9 $\\sigma$, and its branching fraction relative to the $D^*_{s2}(2573)^+ \\to D^+ K^0_{\\rm S}$ decay mode is measured.
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