Journal
PHYSICAL REVIEW LETTERS
Volume 112, Issue 22, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.222002
Keywords
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Categories
Funding
- CERN
- CAPES (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- Region Auvergne (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (Netherlands)
- NWO (Netherlands)
- SCSR (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- Rosatom (Russia)
- RFBR (Russia)
- NRC Kurchatov Institute (Russia)
- MinECo (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- Royal Society (United Kingdom)
- NSF (USA)
- EPLANET
- Marie Curie Actions
- ERC
- IN2P3 (France)
- KIT (Germany)
- SURF (Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205805] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/K00140X/1 LHCb, ST/K001361/1 ATLAS Upgrades, ST/K003534/1 GRIDPP, 1208164, LHCb, PP/E003095/1, ST/I003576/1, ST/K001361/1 LHCb, ST/K00140X/1, ST/F007094/1, ST/K001604/1, ST/J005495/1, ST/K001418/1, ST/H001093/2, ST/K001604/1 T2K, ST/L006340/1, ST/K00137X/1, ST/K003593/1 GRIDPP, ST/M001431/1, ST/H001026/1, ST/H001069/2, ST/K001361/1 MINOS/MINOS+, 1416165, ST/H001026/2, ST/G005974/1, ST/L003538/1, ST/I505572/1, ST/M001474/1, 1096173, LHCb Upgrades, ST/K001604/1 LHCb, ST/K001361/1 ATLAS, ST/K001604/1 SuperNEMO, ST/M000761/1, ST/K001256/1, 1299204, ST/K001604/1 CMS Upgrade, 1415632, ST/K001302/1, ST/K001361/1, 1225314, ST/H001093/1, ST/L00352X/1, ST/K001361/1 LHCb Upgrades, PP/E000347/1, ST/J004855/1, ST/L003392/1, ST/K00073X/1, GRIDPP, ST/J004332/1, ST/K001604/1 MICE/UKNF, ST/K003534/1, 1225304, ST/L001144/1, ST/K001604/1 GRIDPP, ST/K001604/1 LHCb Upgrades, ST/I000097/1, ST/K003410/1, ST/K001604/1 DMUK, ST/H006737/1, ST/K502236/1, ST/L006146/1] Funding Source: researchfish
- STFC [ST/L006340/1, ST/K001361/1, ST/I000097/1, ST/F007094/1, ST/H001069/2, ST/M000761/1, ST/L006146/1, ST/L00352X/1, ST/K003534/1, ST/K001302/1, PP/E003095/1, ST/J005495/1, ST/K00140X/1, ST/L003538/1, ST/H006737/1, ST/H001026/1, ST/H001093/1, ST/I003576/1, ST/J004855/1, ST/L003392/1, LHCb Upgrades, ST/I505572/1, LHCb, ST/J004332/1, ST/K502236/1, ST/M001431/1, ST/H001093/2, ST/K003410/1, ST/K00073X/1, ST/K00137X/1, ST/H001026/2, ST/G005974/1, ST/K001604/1, PP/E000347/1, ST/L001144/1] Funding Source: UKRI
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Resonant structures in B-0 -> psi'pi K--(+) decays are analyzed by performing a four-dimensional fit of the decay amplitude, using pp collision data corresponding to 3 fb(-1) collected with the LHCb detector. The data cannot be described with K+pi(-) resonances alone, which is confirmed with a model-independent approach. A highly significant Z(4430)(-) -> psi'pi(-) component is required, thus confirming the existence of this state. The observed evolution of the Z(4430)(-) amplitude with the psi'pi(-) mass establishes the resonant nature of this particle. The mass and width measurements are substantially improved. The spin parity is determined unambiguously to be 1(+).
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