First evidence for a charm radial excitation, D-*'

Journal article

Using D *+ mesons exclusively reconstructed in the DELPHI detector at LEP, an excess of 66 ± 14(stat.) events is observed in the D *+π+ π- final state with a mass of 2637 ± 2(stat.) ± 6(syst.) MeV/c2 and a full width smaller than 15 MeV/c2 (95% C.L.). This signal is compatible with the expected decay of a radially excited D *′ (JP = 1-) meson. © 1998 Published by Elsevier Science B.V. All rights reserved.

Authors: Abreu, P; Adam, W; Adye, T; Adzic, P; Ajinenko, I

• Publication status: Published
• Journal: Physics Letters B
• Volume: 426
• Issue: 1-2
• Pages: 231-242
• Publication date: 1998-04-30
• DOI: 10.1016/S0370-2693(98)00346-3
• ISSN: 0370-2693
• Language: English