Model-independent confirmation of the <math display='inline'><mi>Z</mi><mo stretchy='false'>(</mo><mn>4430</mn><msup><mo stretchy='false'>)</mo><mo>-</mo></msup></math> state [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy. Office of Science, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description: Article numbers: 112,009 : digital, PDF file
Additional Creators: Lawrence Berkeley National Laboratory, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

Here, the decay B⁰→ψ(2S)K⁺π^- is analyzed using 3 fb^-1 of pp collision data collected with the LHCb detector. A model-independent description of the ψ(2S)π mass spectrum is obtained, using as input the Kπ mass spectrum and angular distribution derived directly from data, without requiring a theoretical description of resonance shapes or their interference. The hypothesis that the ψ(2S)π mass spectrum can be described in terms of Kπ reflections alone is rejected with more than 8σ 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.

Report Numbers

E 1.99:1439184

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Published through SciTech Connect.
12/29/2015.
"ark:/13030/qt9hx658bs"
Physical Review. D, Particles, Fields, Gravitation and Cosmology 92 11 ISSN 1550-7998; PRVDAQ AM
Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Anderson, J.; Andreassen, R.; Andreotti, M.; Andrews, J.; Appleby, R.; Aquines Gutierrez, O.; Archilli, F.; Artamonov, A.; et al.

Funding Information

AC02-05CH11231

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