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Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC
We perform a quantitative analysis of the bbb¯b¯ tetraquark decays into hidden- and open-bottom mesons and calculate, for the first time, the bbb¯b¯ tetraquark total decay width. On the basis of our results, we propose the bbb¯b¯→B+B−(B0B¯0)(Bs0B¯s0)→l+l−+X decays as the most suitable channels to ob...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2020
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2020.135495 http://cds.cern.ch/record/2723965 |
_version_ | 1780965957058953216 |
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author | Becchi, C. Giachino, A. Maiani, L. Santopinto, E. |
author_facet | Becchi, C. Giachino, A. Maiani, L. Santopinto, E. |
author_sort | Becchi, C. |
collection | CERN |
description | We perform a quantitative analysis of the bbb¯b¯ tetraquark decays into hidden- and open-bottom mesons and calculate, for the first time, the bbb¯b¯ tetraquark total decay width. On the basis of our results, we propose the bbb¯b¯→B+B−(B0B¯0)(Bs0B¯s0)→l+l−+X decays as the most suitable channels to observe the bbb¯b¯ tetraquark states, since the calculated two-lepton cross section upper limit, ≃39 fb, is so large as to be potentially detectable with the 2018 LHCb sensitivity, paving the way to the observation of the bbb¯b¯ tetraquark in the future LHCb upgrade. The 4 μ signal for the ground state, JPC=0++ , is likely to be too small even for the upgraded LHCb, but it may not be hopeless for the JPC=2++ fully-bottom state. |
id | cern-2723965 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
record_format | invenio |
spelling | cern-27239652023-04-20T02:20:34Zdoi:10.1016/j.physletb.2020.135495doi:10.1016/j.physletb.2020.135495http://cds.cern.ch/record/2723965engBecchi, C.Giachino, A.Maiani, L.Santopinto, E.Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHChep-phParticle Physics - PhenomenologyWe perform a quantitative analysis of the bbb¯b¯ tetraquark decays into hidden- and open-bottom mesons and calculate, for the first time, the bbb¯b¯ tetraquark total decay width. On the basis of our results, we propose the bbb¯b¯→B+B−(B0B¯0)(Bs0B¯s0)→l+l−+X decays as the most suitable channels to observe the bbb¯b¯ tetraquark states, since the calculated two-lepton cross section upper limit, ≃39 fb, is so large as to be potentially detectable with the 2018 LHCb sensitivity, paving the way to the observation of the bbb¯b¯ tetraquark in the future LHCb upgrade. The 4 μ signal for the ground state, JPC=0++ , is likely to be too small even for the upgraded LHCb, but it may not be hopeless for the JPC=2++ fully-bottom state.We perform a quantitative analysis of the $bb\bar{b}\bar{b}$ tetraquark decays into hidden- and open-bottom mesons and calculate, for the first time, the $bb\bar{b}\bar{b}$ tetraquark total decay width. On the basis of our results, we propose the $bb\bar{b}\bar{b} \to B^{+} B^{-} (B^0 \bar{B}^0) (B_s^0 \bar{B}_s^0) \to l^{+} l^{-}+\text{X}$ decays as the most suitable channels to observe the $bb\bar{b}\bar{b}$ tetraquark states, since the calculated two-lepton cross section upper limit, $\simeq 39 $ fb, is so large as to be potentially detectable with the 2018 LHCb sensitivity, paving the way to the observation of the $bb\bar{b}\bar{b}$ tetraquark in the future LHCb upgrade. The $4\mu$ signal for the ground state, $J^{PC}=0^{++}$, is likely to be too small even for the upgraded LHCb, but it may not be hopeless for the $J^{PC}=2^{++}$ fully-bottom state.arXiv:2002.11077oai:cds.cern.ch:27239652020-02-25 |
spellingShingle | hep-ph Particle Physics - Phenomenology Becchi, C. Giachino, A. Maiani, L. Santopinto, E. Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC |
title | Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC |
title_full | Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC |
title_fullStr | Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC |
title_full_unstemmed | Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC |
title_short | Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC |
title_sort | search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $b^{+} b^{-}$, $b^0 \bar{b}^0$ and $b_s^0 \bar{b}_s^0$ channels at lhc |
topic | hep-ph Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1016/j.physletb.2020.135495 https://dx.doi.org/10.1016/j.physletb.2020.135495 http://cds.cern.ch/record/2723965 |
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