Search for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decays
\noindent A search for the decays $B^0_{s}\rightarrow \mu^+ \mu^- \mu^+ \mu^-$ and $B^0 \rightarrow \mu^+ \mu^- \mu^+ \mu^-$ is performed using data, corresponding to an integrated luminosity of 1.0\ensuremath{\{\,fb}^{-1}}\xspace, collected with the LHCb detector in 2011. The number of candidates o...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2013
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| _version_ | 1797081844917731328 |
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| author | collaboration, L Aaij, R Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Jr, A Amato, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, R Gutierrez, O Archilli, F Artamonov, A |
| author_facet | collaboration, L Aaij, R Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Jr, A Amato, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, R Gutierrez, O Archilli, F Artamonov, A |
| author_sort | collaboration, L |
| collection | OXFORD |
| description | \noindent A search for the decays $B^0_{s}\rightarrow \mu^+ \mu^- \mu^+ \mu^-$ and $B^0 \rightarrow \mu^+ \mu^- \mu^+ \mu^-$ is performed using data, corresponding to an integrated luminosity of 1.0\ensuremath{\{\,fb}^{-1}}\xspace, collected with the LHCb detector in 2011. The number of candidates observed is consistent with the expected background and, assuming phase-space models of the decays, limits on the branching fractions are set: \{${\ensuremath{\cal B}\xspace}(B^0_{s}\rightarrow \mu^+ \mu^- \mu^+ \mu^-) < 1.6 \ (1.2) \times 10^{-8}$} and \{${\ensuremath{\cal B}\xspace}(B^0 \rightarrow \mu^+ \mu^- \mu^+ \mu^-)< 6.6 \ (5.3) \times 10^{-9}$} at 95\,% (90\,%) confidence level. In addition, limits are set in the context of a supersymmetric model which allows for the $B^0_{(s)}$ meson to decay into a scalar ($S$) and pseudoscalar particle ($P$), where $S$ and $P$ have masses of 2.5 GeV and 214.3 MeV, respectively, both resonances decay into $\mu^+\mu^-$. The branching fraction limits for these decays are \{${\ensuremath{\cal B}\xspace}(\ensuremath{B^0_{s}\rightarrow SP}\xspace) < 1.6 \ (1.2) \times 10^{-8}$} and \{${\ensuremath{\cal B}\xspace}(\ensuremath{B^0\rightarrow SP}\xspace)< 6.3 \ (5.1) \times 10^{-9}$} at 95% (90%) confidence level. |
| first_indexed | 2024-03-07T01:19:47Z |
| format | Journal article |
| id | oxford-uuid:8fef30ba-aedb-49ca-8c02-02d0578cbb92 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:19:47Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:8fef30ba-aedb-49ca-8c02-02d0578cbb922022-03-26T23:08:04ZSearch for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decaysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8fef30ba-aedb-49ca-8c02-02d0578cbb92EnglishSymplectic Elements at Oxford2013collaboration, LAaij, RBeteta, CAdametz, AAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GCartelle, PJr, AAmato, SAmhis, YAnderlini, LAnderson, JAndreassen, RAppleby, RGutierrez, OArchilli, FArtamonov, A\noindent A search for the decays $B^0_{s}\rightarrow \mu^+ \mu^- \mu^+ \mu^-$ and $B^0 \rightarrow \mu^+ \mu^- \mu^+ \mu^-$ is performed using data, corresponding to an integrated luminosity of 1.0\ensuremath{\{\,fb}^{-1}}\xspace, collected with the LHCb detector in 2011. The number of candidates observed is consistent with the expected background and, assuming phase-space models of the decays, limits on the branching fractions are set: \{${\ensuremath{\cal B}\xspace}(B^0_{s}\rightarrow \mu^+ \mu^- \mu^+ \mu^-) < 1.6 \ (1.2) \times 10^{-8}$} and \{${\ensuremath{\cal B}\xspace}(B^0 \rightarrow \mu^+ \mu^- \mu^+ \mu^-)< 6.6 \ (5.3) \times 10^{-9}$} at 95\,% (90\,%) confidence level. In addition, limits are set in the context of a supersymmetric model which allows for the $B^0_{(s)}$ meson to decay into a scalar ($S$) and pseudoscalar particle ($P$), where $S$ and $P$ have masses of 2.5 GeV and 214.3 MeV, respectively, both resonances decay into $\mu^+\mu^-$. The branching fraction limits for these decays are \{${\ensuremath{\cal B}\xspace}(\ensuremath{B^0_{s}\rightarrow SP}\xspace) < 1.6 \ (1.2) \times 10^{-8}$} and \{${\ensuremath{\cal B}\xspace}(\ensuremath{B^0\rightarrow SP}\xspace)< 6.3 \ (5.1) \times 10^{-9}$} at 95% (90%) confidence level. |
| spellingShingle | collaboration, L Aaij, R Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Jr, A Amato, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, R Gutierrez, O Archilli, F Artamonov, A Search for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decays |
| title | Search for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decays |
| title_full | Search for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decays |
| title_fullStr | Search for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decays |
| title_full_unstemmed | Search for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decays |
| title_short | Search for rare $B^0_{(s)}\rightarrow μ^+ μ^- μ^+ μ^-$ decays |
| title_sort | search for rare b 0 s rightarrow μ μ μ μ decays |
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