Abazov, VM;
Abbott, B;
Acharya, BS;
Adams, M;
Adams, T;
Agnew, JP;
Alexeev, GD;
... Zivkovic, L; + view all
(2018)
Study of the X-+/-(5568) state with semileptonic decays of the B-s(0) meson.
Physical Rev.iew D
, 97
(9)
, Article 092004. 10.1103/PhysRevD.97.092004.
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Abstract
We present a study of the X ± ( 5568 ) using semileptonic decays of the B 0 s meson using the full run II integrated luminosity of 10.4 fb − 1 in proton-antiproton collisions at a center of mass energy of 1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. We report evidence for a narrow structure, X ± ( 5568 ) , in the decay sequence X ± ( 5568 ) → B 0 s π ± where B 0 s → μ ∓ D ± s X , D ± s → ϕ π ± which is consistent with the previous measurement by the D0 Collaboration in the hadronic decay mode, X ± ( 5568 ) → B 0 s π ± where B 0 s → J / ψ ϕ . The mass and width of this state are measured using a combined fit of the hadronic and semileptonic data, yielding m = 5566.9 + 3.2 − 3.1 ( stat ) + 0.6 − 1.2 ( syst ) MeV / c 2 , Γ = 18.6 + 7.9 − 6.1 ( stat ) + 3.5 − 3.8 ( syst ) MeV / c 2 with a significance of 6.7 σ .
| Type: | Article |
|---|---|
| Title: | Study of the X-+/-(5568) state with semileptonic decays of the B-s(0) meson |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.97.092004 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.97.092004 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, Physics, Particles & Fields, Physics, ROOT-S=1.96 TEV, COLLISIONS, DETECTOR |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10052710 |
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