doi: 10.1103/PhysRevLett.112.222002.
Epub 2014 Jun 4.
Observation of the resonant character of the Z(4430)(-) state
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, B Adeva
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, M Adinolfi
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, A Affolder
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, Z Ajaltouni
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, J Albrecht
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; (LHCb Collaboration)
Affiliations
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 2 Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
- 3 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 6 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 7 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 8 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 9 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia.
- 10 Sezione INFN di Roma La Sapienza, Roma, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 11 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 12 Sezione INFN di Padova, Padova, Italy.
- 13 LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France.
- 14 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 15 Sezione INFN di Firenze, Firenze, Italy.
- 16 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 17 University of Cincinnati, Cincinnati, Ohio, USA.
- 18 Sezione INFN di Ferrara, Ferrara, Italy.
- 19 University of Maryland, College Park, Maryland, USA.
- 20 School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 21 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 22 Institute for High Energy Physics (IHEP), Protvino, Russia.
- 23 Syracuse University, Syracuse, New York, USA.
- 24 CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France.
- 25 Sezione INFN di Roma La Sapienza, Roma, Italy.
- 26 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 27 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 28 Universitat de Barcelona, Barcelona, Spain.
- 29 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia.
- 30 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 31 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 32 Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 33 LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France.
- 34 Sezione INFN di Pisa, Pisa, Italy.
- 35 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 36 LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France.
- 37 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy.
- 38 Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 39 University of Birmingham, Birmingham, United Kingdom.
- 40 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia.
- 41 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 42 Sezione INFN di Cagliari, Cagliari, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 43 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands.
- 44 Sezione INFN di Cagliari, Cagliari, Italy.
- 45 Sezione INFN di Milano Bicocca, Milano, Italy.
- 46 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 47 Sezione INFN di Bologna, Bologna, Italy.
- 48 Sezione INFN di Roma Tor Vergata, Roma, Italy.
- 49 Sezione INFN di Genova, Genova, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 50 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 51 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 52 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 53 Imperial College London, London, United Kingdom.
- 54 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 55 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil (associated with Institution Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil).
- 56 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 57 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 58 European Organization for Nuclear Research (CERN), Geneva, Switzerland and STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 59 European Organization for Nuclear Research (CERN), Geneva, Switzerland and School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 60 Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia.
- 61 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 62 Sezione INFN di Genova, Genova, Italy.
- 63 Sezione INFN di Firenze, Firenze, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 64 Sezione INFN di Milano, Milano, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 65 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 66 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland and Imperial College London, London, United Kingdom.
- 67 Institut für Physik, Universität Rostock, Rostock, Germany (associated with Institution Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 68 Institute for High Energy Physics (IHEP), Protvino, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 69 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 70 Sezione INFN di Milano Bicocca, Milano, Italy and Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 71 Instituto de Fisica Corpuscular (IFIC), Universitat de Valencia-CSIC, Valencia, Spain (associated with Institution Universitat de Barcelona, Barcelona, Spain).
- 72 School of Physics, University College Dublin, Dublin, Ireland.
- 73 Department of Physics, University of Oxford, Oxford, United Kingdom and University of Cincinnati, Cincinnati, Ohio, USA.
- 74 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 75 Sezione INFN di Milano, Milano, Italy.
- 76 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 77 KVI-University of Groningen, Groningen, The Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands).
- 78 Sezione INFN di Bari, Bari, Italy.
- 79 Celal Bayar University, Manisa, Turkey (associated with Institution European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 80 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia and Department of Physics, University of Warwick, Coventry, United Kingdom.
- 81 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 82 Sezione INFN di Ferrara, Ferrara, Italy and NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 83 National Research Centre Kurchatov Institute, Moscow, Russia (associated with Institution Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia).
- 84 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom and Department of Physics, University of Oxford, Oxford, United Kingdom.
- 85 Sezione INFN di Pisa, Pisa, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 86 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 87 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- PMID: 24949760
- DOI: 10.1103/PhysRevLett.112.222002
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Observation of the resonant character of the Z(4430)(-) state
R Aaij et al.
Phys Rev Lett.
.
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doi: 10.1103/PhysRevLett.112.222002.
Epub 2014 Jun 4.
Authors
R Aaij
1
, B Adeva
2
, M Adinolfi
3
, A Affolder
4
, Z Ajaltouni
5
, J Albrecht
6
, F Alessio
7
, M Alexander
8
, S Ali
1
, G Alkhazov
9
, P Alvarez Cartelle
2
, A A Alves Jr
10
, S Amato
11
, S Amerio
12
, Y Amhis
13
, L An
14
, L Anderlini
15
, J Anderson
16
, R Andreassen
17
, M Andreotti
18
, J E Andrews
19
, R B Appleby
20
, O Aquines Gutierrez
21
, F Archilli
7
, A Artamonov
22
, M Artuso
23
, E Aslanides
24
, G Auriemma
25
, M Baalouch
5
, S Bachmann
26
, J J Back
27
, A Badalov
28
, V Balagura
29
, W Baldini
18
, R J Barlow
20
, C Barschel
7
, S Barsuk
13
, W Barter
30
, V Batozskaya
31
, Th Bauer
1
, A Bay
32
, L Beaucourt
33
, J Beddow
8
, F Bedeschi
34
, I Bediaga
35
, S Belogurov
29
, K Belous
22
, I Belyaev
29
, E Ben-Haim
36
, G Bencivenni
37
, S Benson
7
, J Benton
3
, A Berezhnoy
38
, R Bernet
16
, M-O Bettler
30
, M van Beuzekom
1
, A Bien
26
, S Bifani
39
, T Bird
20
, A Bizzeti
15
, P M Bjørnstad
20
, T Blake
27
, F Blanc
32
, J Blouw
21
, S Blusk
23
, V Bocci
25
, A Bondar
40
, N Bondar
41
, W Bonivento
42
, S Borghi
20
, A Borgia
23
, M Borsato
13
, T J V Bowcock
4
, E Bowen
16
, C Bozzi
18
, T Brambach
6
, J van den Brand
43
, J Bressieux
32
, D Brett
20
, M Britsch
21
, T Britton
23
, J Brodzicka
20
, N H Brook
3
, H Brown
4
, A Bursche
16
, G Busetto
12
, J Buytaert
7
, S Cadeddu
44
, R Calabrese
18
, M Calvi
45
, M Calvo Gomez
28
, A Camboni
28
, P Campana
46
, D Campora Perez
7
, A Carbone
47
, G Carboni
48
, R Cardinale
49
, A Cardini
44
, H Carranza-Mejia
50
, L Carson
50
, K Carvalho Akiba
11
, G Casse
4
, L Cassina
45
, L Castillo Garcia
7
, M Cattaneo
7
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6
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19
, M Charles
36
, Ph Charpentier
7
, S Chen
20
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51
, N Chiapolini
16
, M Chrzaszcz
52
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7
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7
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7
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3
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1
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, L Zhong
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, A Zvyagin
7
; (LHCb Collaboration)
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 2 Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
- 3 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 6 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 7 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 8 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 9 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia.
- 10 Sezione INFN di Roma La Sapienza, Roma, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 11 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 12 Sezione INFN di Padova, Padova, Italy.
- 13 LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France.
- 14 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 15 Sezione INFN di Firenze, Firenze, Italy.
- 16 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 17 University of Cincinnati, Cincinnati, Ohio, USA.
- 18 Sezione INFN di Ferrara, Ferrara, Italy.
- 19 University of Maryland, College Park, Maryland, USA.
- 20 School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 21 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 22 Institute for High Energy Physics (IHEP), Protvino, Russia.
- 23 Syracuse University, Syracuse, New York, USA.
- 24 CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France.
- 25 Sezione INFN di Roma La Sapienza, Roma, Italy.
- 26 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 27 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 28 Universitat de Barcelona, Barcelona, Spain.
- 29 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia.
- 30 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 31 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 32 Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 33 LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France.
- 34 Sezione INFN di Pisa, Pisa, Italy.
- 35 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 36 LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France.
- 37 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy.
- 38 Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 39 University of Birmingham, Birmingham, United Kingdom.
- 40 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia.
- 41 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 42 Sezione INFN di Cagliari, Cagliari, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 43 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands.
- 44 Sezione INFN di Cagliari, Cagliari, Italy.
- 45 Sezione INFN di Milano Bicocca, Milano, Italy.
- 46 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 47 Sezione INFN di Bologna, Bologna, Italy.
- 48 Sezione INFN di Roma Tor Vergata, Roma, Italy.
- 49 Sezione INFN di Genova, Genova, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 50 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 51 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 52 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 53 Imperial College London, London, United Kingdom.
- 54 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 55 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil (associated with Institution Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil).
- 56 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 57 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 58 European Organization for Nuclear Research (CERN), Geneva, Switzerland and STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 59 European Organization for Nuclear Research (CERN), Geneva, Switzerland and School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 60 Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia.
- 61 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 62 Sezione INFN di Genova, Genova, Italy.
- 63 Sezione INFN di Firenze, Firenze, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 64 Sezione INFN di Milano, Milano, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 65 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 66 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland and Imperial College London, London, United Kingdom.
- 67 Institut für Physik, Universität Rostock, Rostock, Germany (associated with Institution Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 68 Institute for High Energy Physics (IHEP), Protvino, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 69 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 70 Sezione INFN di Milano Bicocca, Milano, Italy and Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 71 Instituto de Fisica Corpuscular (IFIC), Universitat de Valencia-CSIC, Valencia, Spain (associated with Institution Universitat de Barcelona, Barcelona, Spain).
- 72 School of Physics, University College Dublin, Dublin, Ireland.
- 73 Department of Physics, University of Oxford, Oxford, United Kingdom and University of Cincinnati, Cincinnati, Ohio, USA.
- 74 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 75 Sezione INFN di Milano, Milano, Italy.
- 76 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 77 KVI-University of Groningen, Groningen, The Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands).
- 78 Sezione INFN di Bari, Bari, Italy.
- 79 Celal Bayar University, Manisa, Turkey (associated with Institution European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 80 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia and Department of Physics, University of Warwick, Coventry, United Kingdom.
- 81 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 82 Sezione INFN di Ferrara, Ferrara, Italy and NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 83 National Research Centre Kurchatov Institute, Moscow, Russia (associated with Institution Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia).
- 84 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom and Department of Physics, University of Oxford, Oxford, United Kingdom.
- 85 Sezione INFN di Pisa, Pisa, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 86 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 87 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- PMID: 24949760
- DOI: 10.1103/PhysRevLett.112.222002
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Abstract
Resonant structures in B^{0}→ψ^{'}π^{-}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^{+}π^{-} resonances alone, which is confirmed with a model-independent approach. A highly significant Z(4430)^{-}→ψ^{'}π^{-} component is required, thus confirming the existence of this state. The observed evolution of the Z(4430)^{-} amplitude with the ψ^{'}π^{-} 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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