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Study of D J meson decays to D + π − , D 0 π + and D* + π − final states in pp collisions

  • The LHCb collaboration
  • Science Park 105
  • University Santiago de Compostela
  • University of Bristol
  • Aix Marseille Université
  • Oliver Lodge Laboratory
  • University of Liverpool
  • Clermont-Auvergne University
  • University of Dortmund
  • European Organization for Nuclear Research
  • SUPA
  • University of Glasgow
  • Petersburg Nuclear Physics Institute (PNPI)
  • Sezione di Roma
  • Instituto de Biofisica da UFRJ
  • INFN
  • Laboratoire de l'Accélérateur Linéaire
  • Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
  • University of Florence
  • Physik-Institut
  • University of Zurich
  • University of Cincinnati
  • University of Maryland, College Park
  • School of Physics and Astronomy
  • University of Manchester
  • Max-Planck-Institut für Kernphysik
  • LNF-INFN
  • Kurchatov Institute
  • Syracuse University
  • Università degli Studi della Basilicata
  • University of Heidelberg
  • Department of Physics
  • University of Warwick
  • Pontifícia Universidade Católica do Rio de Janeiro
  • Institute for Theoretical and Experimental Physics
  • Sezione INFN di Ferrara
  • University of Cambridge
  • ENAC-IIC-GEL
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
  • Centro Brasileiro de Pesquisas Fisicas
  • Universités Paris VI and VII
  • University of Edinburgh

Research output: Contribution to journal › Article › peer-review

97 Citations (Scopus)

Abstract

A study of D + π − , D 0 π + and D* + π − final states is performed using πcollision data, corresponding to an integrated luminosity of 1.0 fb −1 , collected at a centre-of-mass energy of 7 TeV with the LHCb detector. The D 1 (2420) 0 resonance is observed in the D* + π − final state and the D* 2 (2460) resonance is observed in the D + π − , D 0 π + and D* + π − final states. For both resonances, their properties and spin-parity assignments are obtained. In addition, two natural parity and two unnatural parity resonances are observed in the mass region between 2500 and 2800 MeV. Further structures in the region around 3000 MeV are observed in all the D* + π − , D + π − and D 0 π + final states.

Original languageEnglish
Article number145
JournalJournal of High Energy Physics
Volume2013
Issue number9
DOIs
Publication statusPublished - 26 Sept 2013
Externally publishedYes

Keywords

  • Charm physics
  • Hadron-Hadron Scattering
  • Spectroscopy

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