Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/112076
Title: Model-Independent Evidence for J /ψp Contributions to Λb0 →j /ψpK- Decays
Author: LHCb collaboration
Gascón Fora, David
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, C.
Picatoste Olloqui, Eduardo
Rives Molina, Vicente José
Garrido Beltrán, Lluís
Keywords: Teoria quàntica de camps
Partícules (Física nuclear)
Física nuclear
Detectors de radiació
Quantum field theory
Particles (Nuclear physics)
Nuclear physics
Nuclear counters
Issue Date: 2016
Publisher: American Physical Society
Abstract: The data sample of Λ0b→J/ψpK− decays acquired with the LHCb detector from 7 and 8 TeV pp collisions, corresponding to an integrated luminosity of 3  fb−1, is inspected for the presence of J/ψp or J/ψK− contributions with minimal assumptions about K−p contributions. It is demonstrated at more than nine standard deviations that Λ0b→J/ψpK− decays cannot be described with K−p contributions alone, and that J/ψp contributions play a dominant role in this incompatibility. These model-independent results support the previously obtained model-dependent evidence for P+c→J/ψp charmonium-pentaquark states in the same data sample.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.117.082002
It is part of: Physical Review Letters, 2016, vol. 117, num. 82002
Related resource: https://doi.org/10.1103/PhysRevLett.117.082002
URI: http://hdl.handle.net/2445/112076
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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