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EP Preprints

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2024-04-11
09:27
Search for prompt production of pentaquarks in open charm hadron final states / LHCb Collaboration
A search for hidden-charm pentaquark states decaying to a range of $\Sigma_{c}\bar{D}$ and $\Lambda_{c}^{+}\bar{D}$ final states, as well as doubly-charmed pentaquark states to $\Sigma_{c}D$ and $\Lambda_{c}^{+}D$, is made using samples of proton-proton collision data corresponding to an integrated luminosity of $5.7fb^{-1}$ recorded by the LHCb detector at $\sqrt{s} = 13 Te\kern -0.1em V$. [...]
arXiv:2404.07131 ; LHCb-PAPER-2023-018 ; CERN-EP-2024-071 ; LHCB-PAPER-2023-018. - 2024. - 29 p.
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2024-03-07
13:59
Amplitude analysis of the $\Lambda_b^0\to pK^-\gamma$ decay / LHCb Collaboration
The resonant structure of the radiative decay $\Lambda_b^0\to pK^-\gamma$ in the region of proton-kaon invariant-mass up to 2.5 GeV$/c^2$ is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV collected with the LHCb detector, corresponding to a total integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2403.03710 ; LHCb-PAPER-2023-036 ; CERN-EP-2023-253 ; LHCB-PAPER-2023-036. - 2024. - 39 p.
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2024-03-06
14:45
First observation of the $\Lambda^0_b \to D^+ D^- \Lambda$ decay / LHCb Collaboration
The $\Lambda^0_b \to D^+ D^- \Lambda$ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of $13 \mathrm{TeV}$, corresponding to an integrated luminosity of $5.3 \mathrm{fb}^{-1}$. [...]
arXiv:2403.03586 ; LHCb-PAPER-2023-042 ; CERN-EP-2024-041 ; LHCB-PAPER-2023-042. - 2024. - 23 p.
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2024-02-29
14:56
Results and perspectives from the first two years of neutrino physics at the LHC by the SND@LHC experiment / Van Herwijnen, Eric (Imperial College (GB)) ; De Lellis, Giovanni (Universita Federico II e INFN Sezione di Napoli (IT))
After a rapid approval and installation, the SND@LHC Collaboration was able to take data successfully in 2022 and 2023. [...]
CERN-OPEN-2024-003. - 2024. - 13 p.
Preprint

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2024-02-26
13:36
Observation of the $B_c^+ \to J/\psi \pi^+ \pi^0$ decay / LHCb Collaboration
The first observation of the $B_c^+ \to J/\psi \pi^+ \pi^0$ decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of 9 fb$^{-1}$, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV. [...]
arXiv:2402.05523 ; LHCb-PAPER-2023-046 ; CERN-EP-2024-019 ; LHCB-PAPER-2023-046. - 2024. - 30 p.
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2024-02-21
12:21
Leaving No Matter Unturned - Analysing existing LHC measurements and events with jets and missing transverse energy measured by the ATLAS Experiment in search of Dark Matter / Habedank, Martin
Various astrophysical observations point towards an as-of-yet unexplained, mainly gravitationally interacting type of matter [...]
arXiv:2402.13760 - Humboldt-Universität zu Berlin, 2024-03-25. - 313 p.


10.3204/PUBDB-2024-01286
10.18452/28362

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2024-02-12
11:08
Measurement of the Branching Fraction of $B^{0} \rightarrow J/\psi \pi^{0}$ Decays / LHCb Collaboration
The ratio of branching fractions between $B^{0} \rightarrow J/\psi \pi^{0}$ and $B^{+} \rightarrow J/\psi K^{*+}$ decays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2402.05528 ; LHCb-PAPER-2023-041 ; CERN-EP-2024-009. - 2024. - 28 p.
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2024-02-02
14:10
Measurements of the branching fraction ratio $\mathcal{B}(\phi\to\mu^{+}\mu^{-})$/$\mathcal{B}(\phi\to e^{+}e^{-})$ with charm meson decays / LHCb Collaboration
Measurements of the branching fraction ratio ${\mathcal{B}(\phi \to \mu^+ \mu^-)/\mathcal{B}(\phi\to e^+e^-)}$ with ${D_{s}^{+} \to \pi^{+} \phi}$ and ${D^{+} \to \pi^{+} \phi}$ decays, denoted $R^{s}_{\phi \pi}$ and $R^{d}_{\phi \pi}$, are presented. [...]
arXiv:2402.01336 ; LHCb-PAPER-2023-038 ; CERN-EP-2024-001 ; LHCB-PAPER-2023-038. - 2024. - 25 p.
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2024-02-01
08:59
Study of $CP$ violation in $B^0_{(s)} to D K^{*}(892)^0$ decays with $D \to K \pi ( \pi \pi)$, $ \pi \pi( \pi \pi)$, and $KK$ final states / LHCb Collaboration
A measurement of $CP$-violating observables associated with the interference of $B^0\to D^0 K^{*}(892)^0$ and $B^0\to \overline{D}^0 K^*(892)^0$ decay amplitudes is performed in the $D^0 \to K^{\mp}\pi^{\pm}(\pi^+\pi^-),$ $D^0 \to \pi^+\pi^-(\pi^+\pi^-)$, and $D^0\to K^+K^-$ final states using data collected by the LHCb experiment corresponding to an integrated luminosity of $9$~$\text{fb}^{-1}$. [...]
arXiv:2401.17934 ; LHCb-PAPER-2023-040 ; CERN-EP-2024-007 ; LHCB-PAPER-2023-040. - 2024. - 31 p.
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2024-01-23
10:28
Prompt and nonprompt $\psi(2S)$ production in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV / LHCb Collaboration
The production of $\psi(2S)$ mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{NN}}=8.16$ TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb$^{-1}$. [...]
arXiv:2401.11342 ; LHCb-PAPER-2023-024 ; CERN-EP-2023-293. - 2024. - 55 p.
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