Observation of J /ψφ Structures Consistent with Exotic States from Amplitude Analysis of B+ →j /ψφK+ Decays

LHCb Collaboration

doi:10.1103/PhysRevLett.118.022003

Observation of J /ψφ Structures Consistent with Exotic States from Amplitude Analysis of B+ →j /ψφK+ Decays

LHCb Collaboration

Facultad Internacional de Comercio y Economía Digital La Salle

Producción científica: Artículo en revista indizada › Artículo › revisión exhaustiva

233 Citas (Scopus)

Resumen

The first full amplitude analysis of B+→J/ψφK+ with J/ψ→μ+μ-, φ→K+K- decays is performed with a data sample of 3 fb-1 of pp collision data collected at s=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into φK+, and four J/ψφ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.

Idioma original	Inglés
Número de artículo	022003
Publicación	Physical Review Letters
Volumen	118
N.º	2
DOI	https://doi.org/10.1103/PhysRevLett.118.022003
Estado	Publicada - 11 ene 2017

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10.1103/PhysRevLett.118.022003

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@article{7be2fadd68e042c1ae5e1df0ffc57c93,

title = "Observation of J /ψφ Structures Consistent with Exotic States from Amplitude Analysis of B+ →j /ψφK+ Decays",

abstract = "The first full amplitude analysis of B+→J/ψφK+ with J/ψ→μ+μ-, φ→K+K- decays is performed with a data sample of 3 fb-1 of pp collision data collected at s=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into φK+, and four J/ψφ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.",

author = "\{LHCb Collaboration\} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and \{Aquines Gutierrez\}, O. and F. Archilli and P. D'Argent and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, \{J. J.\} and A. Badalov and C. Baesso and W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and \{Calvo Gomez\}, M. and X. Vilasis-Cardona",

note = "Publisher Copyright: {\textcopyright} 2017 CERN.",

year = "2017",

month = jan,

day = "11",

doi = "10.1103/PhysRevLett.118.022003",

language = "English",

volume = "118",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "2",

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T1 - Observation of J /ψφ Structures Consistent with Exotic States from Amplitude Analysis of B+ →j /ψφK+ Decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - D'Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Calvo Gomez, M.

AU - Vilasis-Cardona, X.

PY - 2017/1/11

Y1 - 2017/1/11

N2 - The first full amplitude analysis of B+→J/ψφK+ with J/ψ→μ+μ-, φ→K+K- decays is performed with a data sample of 3 fb-1 of pp collision data collected at s=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into φK+, and four J/ψφ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.

AB - The first full amplitude analysis of B+→J/ψφK+ with J/ψ→μ+μ-, φ→K+K- decays is performed with a data sample of 3 fb-1 of pp collision data collected at s=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into φK+, and four J/ψφ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.

UR - https://www.scopus.com/pages/publications/85010440955

U2 - 10.1103/PhysRevLett.118.022003

DO - 10.1103/PhysRevLett.118.022003

M3 - Article

C2 - 28128595

AN - SCOPUS:85010440955

SN - 0031-9007

VL - 118

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

M1 - 022003

ER -

Observation of J /ψφ Structures Consistent with Exotic States from Amplitude Analysis of B+ →j /ψφK+ Decays

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