Resonances and CP violation in Bs0 and B¯¯¯¯0s→J/ψK+K−B¯s0→J/ψK+K− decays in the mass region above the ϕ(1020)

Robert Appleby; Igor Babuschkin; Roger Barlow; William Barter; Alexander Bitadze; Jolanta Brodzicka; Christopher Burr; Lorenzo Capriotti; Shun Chen; Stefano De Capua; Giulio Dujany; Marco Gersabeck; Jonathan Harrison; Christoph Hombach; Suzanne Klaver; George Lafferty; Kevin Maguire; Andrew Mcnab; D Muller; Christopher Parkes; Pablo Rodriguez Perez

doi:10.1007/JHEP08(2017)037

Resonances and CP violation in Bs0 and B¯¯¯¯0s→J/ψK+K−B¯s0→J/ψK+K− decays in the mass region above the ϕ(1020)

, Robert Appleby, Igor Babuschkin, Roger Barlow, William Barter, Alexander Bitadze, Jolanta Brodzicka, Christopher Burr, Lorenzo Capriotti, Shun Chen, Stefano De Capua, Giulio Dujany, Marco Gersabeck, Jonathan Harrison, Christoph Hombach, Suzanne Klaver, George Lafferty, Kevin Maguire, Andrew Mcnab, D MullerChristopher Parkes, Pablo Rodriguez Perez

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Abstract

The decays of Bs0 and B¯¯¯¯0sB¯s0 mesons into the J/ψK+K− final state are studied in the K+K− mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕs, the decay width, Γs, and the width difference between light and heavy mass eigenstates, ΔΓs. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1 produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕs = 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ+π− and J/ψϕ(1020) final states gives ϕs = 1 ± 37 mrad, consistent with the Standard Model prediction.

Original language	English
Journal	The Journal of High Energy Physics
DOIs	https://doi.org/10.1007/JHEP08(2017)037
Publication status	Published - 9 Aug 2017

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, Appleby, R., Babuschkin, I., Barlow, R., Barter, W., Bitadze, A., Brodzicka, J., Burr, C., Capriotti, L., Chen, S., De Capua, S., Dujany, G., Gersabeck, M., Harrison, J., Hombach, C., Klaver, S., Lafferty, G., Maguire, K., Mcnab, A., ... Rodriguez Perez, P. (2017). Resonances and CP violation in Bs0 and B¯¯¯¯0s→J/ψK+K−B¯s0→J/ψK+K− decays in the mass region above the ϕ(1020). The Journal of High Energy Physics. https://doi.org/10.1007/JHEP08(2017)037

@article{85e633807eca46099e2580f878d82904,

title = "Resonances and CP violation in Bs0 and B¯¯¯¯0s→J/ψK+K−B¯s0→J/ψK+K− decays in the mass region above the ϕ(1020)",

abstract = "The decays of Bs0 and B¯¯¯¯0sB¯s0 mesons into the J/ψK+K− final state are studied in the K+K− mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕs, the decay width, Γs, and the width difference between light and heavy mass eigenstates, ΔΓs. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1 produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕs = 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ+π− and J/ψϕ(1020) final states gives ϕs = 1 ± 37 mrad, consistent with the Standard Model prediction.",

author = "Robert Appleby and Igor Babuschkin and Roger Barlow and William Barter and Alexander Bitadze and Jolanta Brodzicka and Christopher Burr and Lorenzo Capriotti and Shun Chen and {De Capua}, Stefano and Giulio Dujany and Marco Gersabeck and Jonathan Harrison and Christoph Hombach and Suzanne Klaver and George Lafferty and Kevin Maguire and Andrew Mcnab and D Muller and Christopher Parkes and {Rodriguez Perez}, Pablo",

year = "2017",

month = aug,

day = "9",

doi = "10.1007/JHEP08(2017)037",

language = "English",

journal = "The Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Nature",

}

Appleby, R, Babuschkin, I, Barlow, R, Barter, W, Bitadze, A, Brodzicka, J, Burr, C, Capriotti, L, Chen, S, De Capua, S, Dujany, G, Gersabeck, M, Harrison, J, Hombach, C, Klaver, S, Lafferty, G, Maguire, K, Mcnab, A, Muller, D & Parkes, C & Rodriguez Perez, P 2017, 'Resonances and CP violation in Bs0 and B¯¯¯¯0s→J/ψK+K−B¯s0→J/ψK+K− decays in the mass region above the ϕ(1020)', The Journal of High Energy Physics. https://doi.org/10.1007/JHEP08(2017)037

TY - JOUR

T1 - Resonances and CP violation in Bs0 and B¯¯¯¯0s→J/ψK+K−B¯s0→J/ψK+K− decays in the mass region above the ϕ(1020)

AU - Appleby, Robert

AU - Babuschkin, Igor

AU - Barlow, Roger

AU - Barter, William

AU - Bitadze, Alexander

AU - Brodzicka, Jolanta

AU - Burr, Christopher

AU - Capriotti, Lorenzo

AU - Chen, Shun

AU - De Capua, Stefano

AU - Dujany, Giulio

AU - Gersabeck, Marco

AU - Harrison, Jonathan

AU - Hombach, Christoph

AU - Klaver, Suzanne

AU - Lafferty, George

AU - Maguire, Kevin

AU - Mcnab, Andrew

AU - Muller, D

AU - Parkes, Christopher

AU - Rodriguez Perez, Pablo

PY - 2017/8/9

Y1 - 2017/8/9

N2 - The decays of Bs0 and B¯¯¯¯0sB¯s0 mesons into the J/ψK+K− final state are studied in the K+K− mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕs, the decay width, Γs, and the width difference between light and heavy mass eigenstates, ΔΓs. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1 produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕs = 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ+π− and J/ψϕ(1020) final states gives ϕs = 1 ± 37 mrad, consistent with the Standard Model prediction.

AB - The decays of Bs0 and B¯¯¯¯0sB¯s0 mesons into the J/ψK+K− final state are studied in the K+K− mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕs, the decay width, Γs, and the width difference between light and heavy mass eigenstates, ΔΓs. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1 produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕs = 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ+π− and J/ψϕ(1020) final states gives ϕs = 1 ± 37 mrad, consistent with the Standard Model prediction.

U2 - 10.1007/JHEP08(2017)037

DO - 10.1007/JHEP08(2017)037

M3 - Article

JO - The Journal of High Energy Physics

JF - The Journal of High Energy Physics

SN - 1126-6708

ER -

Resonances and CP violation in Bs0 and B¯¯¯¯0s→J/ψK+K−B¯s0→J/ψK+K− decays in the mass region above the ϕ(1020)

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