TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2015
DA  - 2015//
TI  - Model-independent confirmation of the Z(4430)(-) state
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 112009
EP  - 15pp
VL  - 92
IS  - 11
PB  - Amer Physical Soc
AB  - The decay B-0 -> psi(2S)K+pi(-) is analyzed using 3 fb(-1) of pp collision data collected with the LHCb detector. A model-independent description of the psi(2S)pi mass spectrum is obtained, using as input the K pi mass spectrum and angular distribution derived directly from data, without requiring a theoretical description of resonance shapes or their interference. The hypothesis that the psi(2S)pi mass spectrum can be described in terms of K pi reflections alone is rejected with more than 8 sigma significance. This provides confirmation, in a model-independent way, of the need for an additional resonant component in the mass region of the Z(4430)(-) exotic state.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1510.01951
UR  - https://doi.org/10.1103/PhysRevD.92.112009
DO  - 10.1103/PhysRevD.92.112009
LA  - English
N1  - WOS:000367380800002
ID  - LHCbCollaborationAaij_etal2015
ER  -