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LHCb Papers

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2025-10-16
08:51
Searches for $B^0\to K^+\pi^-\tau^+\tau^-$ and $B_s^0\to K^+K^-\tau^+\tau^-$ decays / LHCb Collaboration
The first searches for $B^0\to K^+\pi^-\tau^+\tau^-$ and $B^0_s\to K^+K^-\tau^+\tau^-$ decays at the LHCb experiment are conducted with $pp$ collision data corresponding to an integrated luminosity of $5.4\textrm{ fb}^{-1}$. [...]
arXiv:2510.13716 ; LHCb-PAPER-2025-048 ; CERN-EP-2025-224 ; LHCB-PAPER-2025-048. - 2025 - 23.
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2025-09-23
13:21
Measurement of the $W \to \mu\nu$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV / LHCb Collaboration
The $pp \to W^{\pm} (\to \mu^{\pm} \nu_{\mu}) X$ cross-sections are measured at a proton-proton centre-of-mass energy $\sqrt{s} = 5.02$ TeV using a dataset corresponding to an integrated luminosity of 100 pb$^{-1}$ recorded by the LHCb experiment. [...]
arXiv:2509.18817 ; LHCb-PAPER-2025-031 ; CERN-EP-2025-197 ; LHCB-PAPER-2025-031. - 2025 - 37.
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2025-09-22
16:01
First evidence of CP violation in beauty baryon to charmonium decays / LHCb Collaboration
A study of the difference in the $CP$ asymmetries between ${\Lambda}^0_b \rightarrow J / \psi p \pi^-$ and ${\Lambda}^0_b \rightarrow J / \psi p K^-$ decays, $\Delta {\cal A}_{CP}$, is performed using proton-proton collision data collected by the LHCb experiment in the years 2015-2018, corresponding to an integrated luminosity of $6\,{\rm fb}^{-1}$. [...]
arXiv:2509.16103 ; LHCb-PAPER-2025-021 ; CERN-EP-2025-184 ; LHCB-PAPER-2025-021. - 2025 - 24.
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2025-09-19
10:37
A model-independent measurement of the CKM angle $\gamma$ in the decays $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^\pm$ and $B^\pm\to[\pi^+\pi^-\pi^+\pi^-]_D h^\pm$ ($h = K, \pi$) / LHCb Collaboration
A model-independent determination of the CKM angle $\gamma$ is presented, using the $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^\pm$ and $B^\pm\to[\pi^+\pi^-\pi^+\pi^-]_D h^\pm$ decays, with $h=K,\pi$ [...]
arXiv:2509.15139 ; LHCb-PAPER-2025-019 ; CERN-EP-2025-199 ; LHCB-PAPER-2025-019. - 2025
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2025-09-16
16:26
Measurement of the branching fraction of the $\Lambda_b^0\to J\psi\Lambda$ decay and isospin asymmetry of $B\to J\psi K$ decays / LHCb Collaboration
This paper describes a measurement of the $\Lambda_b^0\to J\psi\Lambda$ branching fraction using data collected with the LHCb experiment in proton-proton collisions from 2016 to 2018. [...]
arXiv:2509.12805 ; CERN-EP-2025-183 ; LHCb-PAPER-2025-035 ; LHCB-PAPER-2025-035. - 2025 - 30.
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2025-09-04
13:59
Amplitude analysis of $B^0 \rightarrow \eta_c(1S) K^+ \pi^- $ decays / LHCb Collaboration
An amplitude analysis of the $B^0 \rightarrow \eta_c(1S) K^+ \pi^-$ decays with $\eta_c(1S)\rightarrow p\bar{p} $ is performed using a sample corresponding to an integrated luminosity of 9$\text{fb}^{-1}$ of $pp$ collision data collected by the LHCb detector at centre-of-mass energies of $\sqrt{s}=$7, 8 and 13TeV. [...]
arXiv:2509.03133 ; LHCb-PAPER-2025-027 ; CERN-EP-2025-185 ; LHCB-PAPER-2025-027. - 2025 - 32.
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2025-08-29
09:01
Inclusive $B$-meson flavour-tagging algorithm at LHCb / LHCb Collaboration
A new algorithm is developed to identify the flavour of neutral $B$ mesons at production in $pp$ collisions by utilising all tracks from the hadronisation process. [...]
arXiv:2508.20180 ; LHCB-PAPER-2025-024 ; CERN-EP-2025-168 ; LHCB-PAPER-2025-024. - 2025 - 32.
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2025-08-26
13:37
Measurement of branching fractions and $C\!P$ asymmetries in $\mathit{\Lambda}_b^0(\mathit{\Xi}_b^0)\!\to pK_{\mathrm S}^0h^-$ decays / LHCb Collaboration
A study of $\mathit{\Lambda}_b^0$ and $\mathit{\Xi}_b^0$ baryon decays to the final states $pK_{\mathrm S}^0\pi^-$ and $pK_{\mathrm S}^0K^-$ is performed using $pp$ collision data collected by the LHCb experiment, corresponding to an integrated luminosity of $9\,\mathrm{fb}^{-1}$. [...]
arXiv:2508.17836 ; LHCb-PAPER-2025-016 ; CERN-EP-2025-158 ; LHCB-PAPER-2025-016. - 2025 - 27.
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2025-08-25
09:55
First observation of the charmless baryonic decay $B^+\to \bar{\Lambda}p\bar{p}p$ / LHCb Collaboration
A search for the charmless baryonic decay $B^+\to \bar{\Lambda} p\bar{p}p$ is performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 5.4 $\rm{fb}^{-1}$. [...]
arXiv:2508.16259 ; LHCb-PAPER-2025-032 ; CERN-EP-2025-174 ; LHCB-PAPER-2025-032. - 21.
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2025-08-20
09:20
First observation of $C\!P$ violation and measurement of polarisation in $B^+ \to \rho(770)^0 K^*(892)^+$ decays / LHCb Collaboration
An amplitude analysis of the $B^+\to(\pi^+\pi^-)(K^0_{\mathrm{S}}\pi^+)$ decay is performed in the mass regions $0.30 < m_{\pi^+\pi^-} < 1.10\,\mathrm{GeV}/c^2$ and $0.75 < m_{K^0_{\mathrm{S}}\pi^+} < 1.20\,\mathrm{GeV}/c^2$, using $pp$ collision data recorded with the LHCb detector corresponding to an integrated luminosity of $9\,\mathrm{fb}^{-1}$. [...]
arXiv:2508.13563 ; LHCb-PAPER-2025-026 ; CERN-EP-2025-171 ; LHCB-PAPER-2025-026. - 2025 - 27.
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