Evidence for a New Structure in the J /ψp and J /ψ p ¯ Systems in Bs0 →J /ψp p ¯ Decays

(LHCb Collaboration)

doi:10.1103/PhysRevLett.128.062001

Evidence for a New Structure in the J /ψp and J /ψ p ¯ Systems in Bs0 →J /ψp p ¯ Decays

(LHCb Collaboration)

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

82 Citas (Scopus)

Resumen

An amplitude analysis of flavor-untagged Bs0→J/ψpp¯ decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb-1. Evidence for a new structure in the J/ψp and J/ψp¯ systems with a mass of 4337-4+7 -2+2 MeV and a width of 29-12+26 -14+14 MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7σ, depending on the assigned JP hypothesis.

Idioma original	Inglés
Número de artículo	062001
Publicación	Physical Review Letters
Volumen	128
N.º	6
DOI	https://doi.org/10.1103/PhysRevLett.128.062001
Estado	Publicada - 11 feb. 2022
Publicado de forma externa	Sí

Acceder al documento

10.1103/PhysRevLett.128.062001

Otros archivos y enlaces

Enlace a la publicación en Scopus

Citar esto

@article{511baf11f87f42b1899c5558862974c7,

title = "Evidence for a New Structure in the J /ψp and J /ψ p ¯ Systems in Bs0 →J /ψp p ¯ Decays",

abstract = "An amplitude analysis of flavor-untagged Bs0→J/ψpp¯ decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb-1. Evidence for a new structure in the J/ψp and J/ψp¯ systems with a mass of 4337-4+7 -2+2 MeV and a width of 29-12+26 -14+14 MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7σ, depending on the assigned JP hypothesis.",

author = "{(LHCb Collaboration)} and R. Aaij and Abdelmotteleb, {A. S.W.} and {Abell{\'a}n Beteta}, C. and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, {C. A.} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and Z. Aliouche and G. Alkhazov and {Alvarez Cartelle}, P. and S. Amato and Amey, {J. L.} and Y. Amhis and L. An and L. Anderlini and A. Andreianov and M. Andreotti and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, {J. J.} and {Baladron Rodriguez}, P. and V. Balagura and W. Baldini and {Baptista Leite}, J. and Barlow, {R. J.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and Basels, {J. M.} and S. Bashir and G. Bassi and B. Batsukh and A. Battig and Milanes, {D. A.}",

note = "Publisher Copyright: {\textcopyright} 2022 CERN.",

year = "2022",

month = feb,

day = "11",

doi = "10.1103/PhysRevLett.128.062001",

language = "English",

volume = "128",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "6",

}

TY - JOUR

T1 - Evidence for a New Structure in the J /ψp and J /ψ p ¯ Systems in Bs0 →J /ψp p ¯ Decays

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellán Beteta, C.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista Leite, J.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Basels, J. M.

AU - Bashir, S.

AU - Bassi, G.

AU - Batsukh, B.

AU - Battig, A.

AU - Milanes, D. A.

PY - 2022/2/11

Y1 - 2022/2/11

N2 - An amplitude analysis of flavor-untagged Bs0→J/ψpp¯ decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb-1. Evidence for a new structure in the J/ψp and J/ψp¯ systems with a mass of 4337-4+7 -2+2 MeV and a width of 29-12+26 -14+14 MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7σ, depending on the assigned JP hypothesis.

AB - An amplitude analysis of flavor-untagged Bs0→J/ψpp¯ decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb-1. Evidence for a new structure in the J/ψp and J/ψp¯ systems with a mass of 4337-4+7 -2+2 MeV and a width of 29-12+26 -14+14 MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7σ, depending on the assigned JP hypothesis.

UR - http://www.scopus.com/inward/record.url?scp=85125180767&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.128.062001

DO - 10.1103/PhysRevLett.128.062001

M3 - Article

C2 - 35213204

AN - SCOPUS:85125180767

SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 062001

ER -