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2025-08-04
15:07

Amplitude analysis of the $\Xi^+_c\to pK^-\pi^+$ decay and $\Xi^+_c$ baryon polarization measurement in semileptonic beauty-hadron decays / LHCb Collaboration
An amplitude analysis of the

$\Xi^+_c\to pK^-\pi^+$ decay together with a measurement of the

$\Xi^+_c$ polarization vector in semileptonic beauty-hadron decays is presented. [...]
arXiv:2508.00492 ; LHCb-PAPER-2024-034 ; CERN-EP-2024-320. - 2025 - 38.
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2025-07-21
13:54

Improved measurement of $\eta / \eta^{\prime}$ mixing in $B^{0}_{(s)} \rightarrow J/\psi \eta^{(\prime)}$ decays / LHCb Collaboration
Branching fraction ratios between the decays

$B^{0}_{(s)} \rightarrow J/\psi \eta^{(\prime)}$ are measured using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb

$^{-1}$ . [...]
arXiv:2507.13914 ; LHCb-PAPER-2025-025 ; CERN-EP-2025-148 ; LHCB-PAPER-2025-025. - 2025-07-18 - 32.
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2025-07-21
09:53

Measurement of the $\ B^0 \to \rho(770)^0 \gamma \$ branching fraction / LHCb Collaboration
The ratio between the branching fractions of the

$B^0\to\rho(770)^0\gamma$ and

$B^0\to K^{*}(892)^0\gamma$ decays is measured with proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb

${}^{-1}$ . [...]
arXiv:2507.14401 ; LHCb-PAPER-2025-017 ; CERN-EP-2025-144 ; LHCB-PAPER-2025-017. - 2025 - 21.
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2025-07-21
08:55

Search for resonances decaying to photon pairs with masses between 4.9 and 19.4 GeV / LHCb Collaboration
A search is presented for axion-like particles (ALPs) with masses between 4.9 and 19.4 GeV decaying to a pair of photons, using proton-proton collisions collected with the LHCb detector during 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 2.1 fb

$^{-1}$ . [...]
arXiv:2507.14390 ; CERN-EP-2025-133 ; LHCb-PAPER-2025-012 ; LHCB-PAPER-2025-012. - 2025 - 21.
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2025-07-17
16:47

Precision measurement of the ${\it{\Xi}}_b^0$ baryon lifetime / LHCb Collaboration
A sample of

$pp$ collision data, corresponding to an integrated luminosity of 5.4 fb

$^{-1}$ and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the

${\it{\Xi}}_b^0$ baryon to that of the

${\it{\Lambda}}_b^0$ baryon,

$r_{\tau}\equiv\tau_{{\it{\Xi}}_b^0}/\tau_{{\it{\Lambda}}_b^0}$ . [...]
arXiv:2507.12402 ; LHCb-PAPER-2025-023 ; CERN-EP-2025-139. - 2025 - 25.
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2025-07-15
10:24

First observation of the $\mathit{\Lambda}_b^{0}\!\rightarrow\mathit{\Lambda}_{c}^{+}D_{s}^{-}K^{+}K^{-}$ decay and search for pentaquarks in the $\mathit{\Lambda}_{c}^{+}D_{s}^{-}$ system / LHCb Collaboration
The

$\mathit{\Lambda}_b^{0}\!\rightarrow\mathit{\Lambda}_{c}^{+}D_{s}^{-}K^{+}K^{-}$ decay is observed for the first time using the data sample from proton-proton collisions recorded at a center-of-mass energy of

$13\,\text{TeV}$ with the LHCb detector, corresponding to an integrated luminosity of

$6\,\text{fb}^{-1}$ . [...]
arXiv:2507.10713 ; LHCb-PAPER-2025-022 ; CERN-EP-2025-138 ; LHCB-PAPER-2025-022. - 2025 - 24.
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2025-07-04
16:50

Measurement of transverse $\Lambda$ and $\bar\Lambda$ hyperon polarisation in $p$ Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV / LHCb Collaboration
The transverse polarization of

$Λ$ and

$\barΛ$ hyperons is measured in

$p$ Pb collisions collected by the LHCb experiment at a nucleon-nucleon center-of-mass energy of

$5.02$ TeV. [...]
arXiv:2508.02009 ; LHCb-PAPER-2025-004 ; CERN-EP-2025-153 ; LHCB-PAPER-2025-004. - 2025 - 24.
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2025-06-27
17:01

Updated measurement of $CP$ violation and polarisation in $B^0_s \rightarrow J/\psi \overline{K}{}^{*}\kern-1pt(892)^{0}$ decays / LHCb Collaboration
A time-integrated angular analysis of the decay

$B^0_s \rightarrow J/\psi \overline{K}{}^{*}\kern-1pt(892)^{0}$ , with

$J/\psi \rightarrow \mu^{+} \mu^{-}$ and

$\overline{K}{}^{*}\kern-1pt(892)^{0} \rightarrow K^{-} \pi^{+}$ , is presented. [...]
arXiv:2506.22090 ; LHCb-PAPER-2025-020 ; CERN-EP-2025-131 ; LHCB-PAPER-2025-020. - 2025-06-17 - 35.
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2025-06-16
15:07

Measurement of the $\Omega_c^0$ and $\Xi_c^0$ baryon lifetimes using hadronic $b$ -baryon decays / LHCb Collaboration
The lifetimes of the

$\Omega_c^0$ and

$\Xi_c^0$ baryons are measured using a

$pp$ collision dataset collected by the LHCb experiment, corresponding to an integrated luminosity of

$9~\rm{fb^{-1}}$ . [...]
arXiv:2506.13334 ; LHCb-PAPER-2025-013,CERN-EP-2025-117 ; LHCb-PAPER-2025-013 ; CERN-EP-2025-117 ; LHCB-PAPER-2025-013. - 2025-06-16 - 25.
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2025-06-13
09:50

Measurement of $\psi(2S)$ to $J/\psi$ cross-section ratio as function of multiplicity in $p$ Pb collisions at $\sqrt{s_{NN}} = 8.16$ TeV / LHCb Collaboration
The production ratio of

$\psi(2S)$ to

$J/\psi$ charmonium states is presented as a function of multiplicity in proton-lead collisions at a centre-of-mass energy of

$\sqrt{s_{NN}}=8.16$ TeV, for both prompt and nonprompt sources. [...]
arXiv:2506.08624 ; LHCb-PAPER-2025-011 ; CERN-EP-2025-114 ; LHCB-PAPER-2025-011. - 2025 - 23.
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