Measurement of branching fractions of charmless four-body Λb        0 and Ξb        0 decays

R. Aaij; B. Adeva; M. Adinolfi; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; A. Alfonso Albero; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; L. An; L. Anderlini; G. Andreassi; M. Andreotti; J. E. Andrews; R. B. Appleby; F. Archilli; P. d’Argent; J. Arnau Romeu; A. Artamonov; M. Artuso; E. Aslanides; M. Atzeni; G. Auriemma; M. Baalouch; I. Babuschkin; S. Bachmann; J. J. Back; A. Badalov; C. Baesso; S. Baker; V. Balagura; W. Baldini; S. Bifani; R. Calladine; G. Chatzikonstantinidis; N. Farley; C. Lazzeroni; A. Mazurov; A. Sergi; N. K. Watson; M. P. Williams; T. Williams; K. A. Zarebski; LHCb Collaboration

doi:10.1007/JHEP02(2018)098

Measurement of branching fractions of charmless four-body Λ_b ⁰ and Ξ_b ⁰ decays

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi, M. AndreottiJ. E. Andrews, R. B. Appleby, F. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, G. Auriemma, M. Baalouch, I. Babuschkin, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, S. Baker, V. Balagura, W. Baldini, S. Bifani, R. Calladine, G. Chatzikonstantinidis, N. Farley, C. Lazzeroni, A. Mazurov, A. Sergi, N. K. Watson, M. P. Williams, T. Williams, K. A. Zarebski, LHCb Collaboration

Physics and Astronomy

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Abstract

A search for charmless four-body decays of Λ_b ⁰ and Ξ_b ⁰ baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The data sample used was recorded in 2011 and 2012 with the LHCb experiment and corresponds to an integrated luminosity of 3 fb⁻¹. Six decay modes are observed, among which Λ_b ⁰ → pK⁻π⁺π⁻,Λ_b ⁰ → pK⁻K⁺K⁻,Ξ_b ⁰ → pK⁻π⁺π⁻ and Ξ_b ⁰ → pK⁻π⁺K⁻ are established for the first time. Their branching fractions (including the ratio of hadronisation fractions in the case of the Ξ_b ⁰ baryon) are determined relative to the Λ_b ⁰ → Λ_c ⁺π⁻ decay.[Figure not available: see fulltext.].

Original language	English
Article number	98
Journal	Journal of High Energy Physics
Volume	2018
Issue number	2
DOIs	https://doi.org/10.1007/JHEP02(2018)098
Publication status	Published - 16 Feb 2018

Keywords

B physics
Branching fraction
Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP02(2018)098Licence: Creative Commons: Attribution (CC BY)

Aaij_et_al_Measurement_of_branching_fractions_Journal_of_High_Energy_Physics_2018
Published in Journal of High Energy Physics on 16/02/2018 DOI: 10.1007/JHEP02(2018)098
Final published version, 699 KBLicence: Creative Commons: Attribution (CC BY)

Cite this

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., ... LHCb Collaboration (2018). Measurement of branching fractions of charmless four-body Λ_b ⁰ and Ξ_b ⁰ decays. Journal of High Energy Physics, 2018(2), Article 98. https://doi.org/10.1007/JHEP02(2018)098

@article{4af5da9573ce40398cc4b057fbe6ece3,

title = "Measurement of branching fractions of charmless four-body Λb 0 and Ξb 0 decays",

abstract = "A search for charmless four-body decays of Λb 0 and Ξb 0 baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The data sample used was recorded in 2011 and 2012 with the LHCb experiment and corresponds to an integrated luminosity of 3 fb−1. Six decay modes are observed, among which Λb 0 → pK−π+π−,Λb 0 → pK−K+K−,Ξb 0 → pK−π+π− and Ξb 0 → pK−π+K− are established for the first time. Their branching fractions (including the ratio of hadronisation fractions in the case of the Ξb 0 baryon) are determined relative to the Λb 0 → Λc +π− decay.[Figure not available: see fulltext.].",

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

author = "R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar 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 E. Aslanides and M. Atzeni and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and S. Bifani and R. Calladine and G. Chatzikonstantinidis and N. Farley and C. Lazzeroni and A. Mazurov and A. Sergi and Watson, {N. K.} and Williams, {M. P.} and T. Williams and Zarebski, {K. A.} and {LHCb Collaboration}",

year = "2018",

month = feb,

day = "16",

doi = "10.1007/JHEP02(2018)098",

language = "English",

volume = "2018",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Bifani, S, Calladine, R, Chatzikonstantinidis, G, Farley, N, Lazzeroni, C, Mazurov, A, Sergi, A, Watson, NK, Williams, MP, Williams, T, Zarebski, KA & LHCb Collaboration 2018, 'Measurement of branching fractions of charmless four-body Λ_b ⁰ and Ξ_b ⁰ decays', Journal of High Energy Physics, vol. 2018, no. 2, 98. https://doi.org/10.1007/JHEP02(2018)098

TY - JOUR

T1 - Measurement of branching fractions of charmless four-body Λb 0 and Ξb 0 decays

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

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 - Aslanides, E.

AU - Atzeni, M.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Bifani, S.

AU - Calladine, R.

AU - Chatzikonstantinidis, G.

AU - Farley, N.

AU - Lazzeroni, C.

AU - Mazurov, A.

AU - Sergi, A.

AU - Watson, N. K.

AU - Williams, M. P.

AU - Williams, T.

AU - Zarebski, K. A.

AU - LHCb Collaboration

PY - 2018/2/16

Y1 - 2018/2/16

N2 - A search for charmless four-body decays of Λb 0 and Ξb 0 baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The data sample used was recorded in 2011 and 2012 with the LHCb experiment and corresponds to an integrated luminosity of 3 fb−1. Six decay modes are observed, among which Λb 0 → pK−π+π−,Λb 0 → pK−K+K−,Ξb 0 → pK−π+π− and Ξb 0 → pK−π+K− are established for the first time. Their branching fractions (including the ratio of hadronisation fractions in the case of the Ξb 0 baryon) are determined relative to the Λb 0 → Λc +π− decay.[Figure not available: see fulltext.].

AB - A search for charmless four-body decays of Λb 0 and Ξb 0 baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The data sample used was recorded in 2011 and 2012 with the LHCb experiment and corresponds to an integrated luminosity of 3 fb−1. Six decay modes are observed, among which Λb 0 → pK−π+π−,Λb 0 → pK−K+K−,Ξb 0 → pK−π+π− and Ξb 0 → pK−π+K− are established for the first time. Their branching fractions (including the ratio of hadronisation fractions in the case of the Ξb 0 baryon) are determined relative to the Λb 0 → Λc +π− decay.[Figure not available: see fulltext.].

KW - B physics

KW - Branching fraction

KW - Hadron-Hadron scattering (experiments)

UR - http://www.scopus.com/inward/record.url?scp=85042556987&partnerID=8YFLogxK

U2 - 10.1007/JHEP02(2018)098

DO - 10.1007/JHEP02(2018)098

M3 - Article

AN - SCOPUS:85042556987

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 2

M1 - 98

ER -

Measurement of branching fractions of charmless four-body Λb 0 and Ξb 0 decays