Amplitude analysis of Bs0 → KS0 K ± π ∓ decays

The Lhcb Collaboration

doi:10.1007/JHEP06(2019)114

Amplitude analysis of B_s⁰ → K_S⁰ K ^± π ^∓ decays

The Lhcb Collaboration

Department of Physics

Research output: Contribution to journal › Article

Abstract

The first untagged decay-time-integrated amplitude analysis of B_s⁰ → K_S⁰K^±π^∓ decays is performed using a sample corresponding to 3.0 fb⁻¹ of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K^*(892)^0,+, K₂^*(1430)^0,+ and K₀^*(1430)^0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes B_s⁰ → K^*(892)^±K^∓ and Bs0→K*(—)(892)0K0(—) are in agreement with, and more precise than, previous results. The decays B_s⁰ → K₀^*(1430)^±K^∓ and Bs0→K0*(—)(1430)0K0(—) are observed for the first time, each with significance over 10 standard deviations.

Original language	English (US)
Article number	114
Journal	Journal of High Energy Physics
Volume	2019
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2019)114
State	Published - Jun 1 2019

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decay

standard deviation

collisions

detectors

Keywords

B physics
Branching fraction
CP violation
Flavor physics
Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

The Lhcb Collaboration (2019). Amplitude analysis of B_s⁰ → K_S⁰ K ^± π ^∓ decays. Journal of High Energy Physics, 2019(6), [114]. https://doi.org/10.1007/JHEP06(2019)114

Amplitude analysis of B_s⁰ → K_S⁰ K ^± π ^∓ decays. / The Lhcb Collaboration.

In: Journal of High Energy Physics, Vol. 2019, No. 6, 114, 01.06.2019.

Research output: Contribution to journal › Article

The Lhcb Collaboration 2019, 'Amplitude analysis of B_s⁰ → K_S⁰ K ^± π ^∓ decays', Journal of High Energy Physics, vol. 2019, no. 6, 114. https://doi.org/10.1007/JHEP06(2019)114

The Lhcb Collaboration. Amplitude analysis of B_s⁰ → K_S⁰ K ^± π ^∓ decays. Journal of High Energy Physics. 2019 Jun 1;2019(6). 114. https://doi.org/10.1007/JHEP06(2019)114

The Lhcb Collaboration. / Amplitude analysis of B_s⁰ → K_S⁰ K ^± π ^∓ decays. In: Journal of High Energy Physics. 2019 ; Vol. 2019, No. 6.

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title = "Amplitude analysis of Bs0 → KS0 K ± π ∓ decays",

abstract = "The first untagged decay-time-integrated amplitude analysis of Bs0 → KS0K±π∓ decays is performed using a sample corresponding to 3.0 fb−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes Bs0 → K*(892)±K∓ and Bs0→K*(—)(892)0K0(—) are in agreement with, and more precise than, previous results. The decays Bs0 → K0*(1430)±K∓ and Bs0→K0*(—)(1430)0K0(—) are observed for the first time, each with significance over 10 standard deviations.",

keywords = "B physics, Branching fraction, CP violation, Flavor physics, Hadron-Hadron scattering (experiments)",

author = "{The Lhcb Collaboration} and R. Aaij and {Abell{\'a}n Beteta}, C. 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 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 F. Archilli and {Arnau Romeu}, J. and A. Artamonov and Marina Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, {J. J.} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and Barrand, {G. C.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and V. Batozskaya and B. Batsukh and A. Battig and Blusk, {Steven Roy} and Matthew Rudolph and Tomasz Skwarnicki and Sheldon Stone",

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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.

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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 - Archilli, F.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, Marina

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barrand, G. C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Blusk, Steven Roy

AU - Rudolph, Matthew

AU - Skwarnicki, Tomasz

AU - Stone, Sheldon

PY - 2019/6/1

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N2 - The first untagged decay-time-integrated amplitude analysis of Bs0 → KS0K±π∓ decays is performed using a sample corresponding to 3.0 fb−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes Bs0 → K*(892)±K∓ and Bs0→K*(—)(892)0K0(—) are in agreement with, and more precise than, previous results. The decays Bs0 → K0*(1430)±K∓ and Bs0→K0*(—)(1430)0K0(—) are observed for the first time, each with significance over 10 standard deviations.

AB - The first untagged decay-time-integrated amplitude analysis of Bs0 → KS0K±π∓ decays is performed using a sample corresponding to 3.0 fb−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes Bs0 → K*(892)±K∓ and Bs0→K*(—)(892)0K0(—) are in agreement with, and more precise than, previous results. The decays Bs0 → K0*(1430)±K∓ and Bs0→K0*(—)(1430)0K0(—) are observed for the first time, each with significance over 10 standard deviations.

KW - B physics

KW - Branching fraction

KW - CP violation

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

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U2 - 10.1007/JHEP06(2019)114

DO - 10.1007/JHEP06(2019)114

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JO - Journal of High Energy Physics

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Access to Document

10.1007/JHEP06(2019)114