Observation of the decay B¯s0→χc2                        K+                                                                         K−                         in the ϕ mass region

LHCb Collaboration

doi:10.1007/JHEP08(2018)191

Observation of the decay B¯s0→χc2 ^K+ ^K− in the ϕ mass region

LHCb Collaboration

Physics and Astronomy

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2 Citations (Scopus)

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Abstract

The B¯s0→χc2K+K− decay mode is observed and its branching fraction relative to the corresponding χ _c1 decay mode, in a ±15 MeV/c ² window around the ϕ mass, is found to be ℬ(B¯s0→χc2K+K−)ℬ(B¯s0→χc1K+K−)=(17.1±3.1±0.4±0.9)%, where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the branching fractions of radiative χ _c decays. The decay mode B¯s0→χc1K+K− allows the B _s ⁰ mass to be measured as m(Bs0)=5366.83±0.25±0.27MeV/c2, where the first uncertainty is statistical and the second systematic. A combination of this result with other LHCb determinations of the B _s ⁰ mass is made.[Figure not available: see fulltext.]

Original language	English
Article number	191
Journal	Journal of High Energy Physics
Volume	2018
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2018)191
Publication status	Published - 29 Aug 2018

Bibliographical note

The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 191. https://doi.org/10.1007/JHEP08(2018)191

Keywords

B physics
Flavor physics
Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP08(2018)191Licence: Creative Commons: Attribution (CC BY)

Aaij_et_al_Observation_of_the_decay_Journal_of_High_Energy_Physics_2018
The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 191. https://doi.org/10.1007/JHEP08(2018)191
Final published version, 509 KBLicence: Creative Commons: Attribution (CC BY)

Cite this

@article{1e6c2fcff7614344bde2485e8c776d10,

title = "Observation of the decay B¯s0→χc2 K+ K− in the ϕ mass region",

abstract = " The B¯s0→χc2K+K− decay mode is observed and its branching fraction relative to the corresponding χ c1 decay mode, in a ±15 MeV/c 2 window around the ϕ mass, is found to be ℬ(B¯s0→χc2K+K−)ℬ(B¯s0→χc1K+K−)=(17.1±3.1±0.4±0.9)%, where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the branching fractions of radiative χ c decays. The decay mode B¯s0→χc1K+K− allows the B s 0 mass to be measured as m(Bs0)=5366.83±0.25±0.27MeV/c2, where the first uncertainty is statistical and the second systematic. A combination of this result with other LHCb determinations of the B s 0 mass is made.[Figure not available: see fulltext.] ",

keywords = "B physics, Flavor physics, Hadron-Hadron scattering (experiments)",

author = "R. Aaij and B. Adeva and M. Adinolfi and Aidala, {C. A.} and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. 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 F. Archilli and P. d{\textquoteright}Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and S. Bachmann and Back, {J. J.} and S. Baker and S. Bifani and R. Calladine and G. Chatzikonstantinidis and N. Farley and P. Griffith and P. Ilten and C. Lazzeroni and A. Mazurov and L. Pescatore and J. Plews and D. Popov and A. Sergi and M. Wang and Watson, {N. K.} and Zarebski, {K. A.} and {LHCb Collaboration}",

note = "The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 191. https://doi.org/10.1007/JHEP08(2018)191",

year = "2018",

month = aug,

day = "29",

doi = "10.1007/JHEP08(2018)191",

language = "English",

volume = "2018",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "8",

}

TY - JOUR

T1 - Observation of the decay B¯s0→χc2 K+ K− in the ϕ mass region

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

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 - Archilli, F.

AU - d’Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Bifani, S.

AU - Calladine, R.

AU - Chatzikonstantinidis, G.

AU - Farley, N.

AU - Griffith, P.

AU - Ilten, P.

AU - Lazzeroni, C.

AU - Mazurov, A.

AU - Pescatore, L.

AU - Plews, J.

AU - Popov, D.

AU - Sergi, A.

AU - Wang, M.

AU - Watson, N. K.

AU - Zarebski, K. A.

AU - LHCb Collaboration

N1 - The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 191. https://doi.org/10.1007/JHEP08(2018)191

PY - 2018/8/29

Y1 - 2018/8/29

N2 - The B¯s0→χc2K+K− decay mode is observed and its branching fraction relative to the corresponding χ c1 decay mode, in a ±15 MeV/c 2 window around the ϕ mass, is found to be ℬ(B¯s0→χc2K+K−)ℬ(B¯s0→χc1K+K−)=(17.1±3.1±0.4±0.9)%, where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the branching fractions of radiative χ c decays. The decay mode B¯s0→χc1K+K− allows the B s 0 mass to be measured as m(Bs0)=5366.83±0.25±0.27MeV/c2, where the first uncertainty is statistical and the second systematic. A combination of this result with other LHCb determinations of the B s 0 mass is made.[Figure not available: see fulltext.]

AB - The B¯s0→χc2K+K− decay mode is observed and its branching fraction relative to the corresponding χ c1 decay mode, in a ±15 MeV/c 2 window around the ϕ mass, is found to be ℬ(B¯s0→χc2K+K−)ℬ(B¯s0→χc1K+K−)=(17.1±3.1±0.4±0.9)%, where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the branching fractions of radiative χ c decays. The decay mode B¯s0→χc1K+K− allows the B s 0 mass to be measured as m(Bs0)=5366.83±0.25±0.27MeV/c2, where the first uncertainty is statistical and the second systematic. A combination of this result with other LHCb determinations of the B s 0 mass is made.[Figure not available: see fulltext.]

KW - B physics

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

UR - http://www.scopus.com/inward/record.url?scp=85052892084&partnerID=8YFLogxK

U2 - 10.1007/JHEP08(2018)191

DO - 10.1007/JHEP08(2018)191

M3 - Article

AN - SCOPUS:85052892084

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 191

ER -

Observation of the decay B¯s0→χc2 K+ K− in the ϕ mass region