Amplitude analysis of Bs0 → KS0 K ± π ∓ decays

LHCb Collaboration

doi:10.1007/JHEP06(2019)114

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

LHCb Collaboration

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

107 Downloads (Pure)

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
Article number	114
Number of pages	28
Journal	Journal of High Energy Physics
Volume	2019
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2019)114
Publication status	Published - 21 Jun 2019

Keywords

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

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP06(2019)114Licence: Creative Commons: Attribution (CC BY)

Aaij_et_al_Amplitude_analysis_of_Bs0_→_KS0_K_±_π_∓_decays_Journal_of_High_Energy_Physics_2019Final published version, 790 KBLicence: Creative Commons: Attribution (CC BY)

Cite this

@article{fcd2ac52c63a4a9cb1e0a1165be95ce7,

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 = "{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 M. 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 S. Bifani and R. Calladine and G. Chatzikonstantinidis and N. Farley and P. Griffith and P. Ilten and C. Lazzeroni and L. Pescatore and J. Plews and D. Popov and A. Sergi and Slater, {M. W.} and Watson, {N. K.} and T. Williams and Zarebski, {K. A.}",

year = "2019",

month = jun,

day = "21",

doi = "10.1007/JHEP06(2019)114",

language = "English",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "6",

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TY - JOUR

T1 - Amplitude analysis of Bs0 → KS0 K ± π ∓ decays

AU - LHCb Collaboration

AU - Aaij, R.

AU - Abellán Beteta, C.

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 - 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, M.

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 - Bifani, S.

AU - Calladine, R.

AU - Chatzikonstantinidis, G.

AU - Farley, N.

AU - Griffith, P.

AU - Ilten, P.

AU - Lazzeroni, C.

AU - Pescatore, L.

AU - Plews, J.

AU - Popov, D.

AU - Sergi, A.

AU - Slater, M. W.

AU - Watson, N. K.

AU - Williams, T.

AU - Zarebski, K. A.

PY - 2019/6/21

Y1 - 2019/6/21

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)

UR - http://www.scopus.com/inward/record.url?scp=85067872437&partnerID=8YFLogxK

U2 - 10.1007/JHEP06(2019)114

DO - 10.1007/JHEP06(2019)114

M3 - Article

AN - SCOPUS:85067872437

SN - 1126-6708

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 114

ER -