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CERN Accelerating science

CERN Preprints

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2024-05-02
15:37
First observation of $Λ_{b}^{0} \rightarrow Σ_c^{(*)++} D^{(*)-} K^{-}$ decays
The four decays, $\Lambda_{b}^{0} \rightarrow \Sigma_c^{(*)++} D^{(*)-} K^{-}$, are observed for the first time using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of $13\,\rm{TeV}$, corresponding to an integrated luminosity of $6\,\rm{fb}^{-1}$. [...]
CERN-EP-2024-098 ; LHCB-PAPER-2023-044.
- 2024.
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2024-05-02
12:26
Beam-induced backgrounds measured in the ATLAS detector during local gas injection into the LHC beam vacuum
Inelastic beam-gas collisions at the Large Hadron Collider (LHC), within a few hundred metres of the ATLAS experiment, are known to give the dominant contribution to beam backgrounds [...]
CERN-EP-2024-113.
- 2024.
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2024-05-02
11:55
Amplitude analysis and branching fraction measurement of $B^{+} \to D^{*-}D_{s}^{+}\pi^{+}$ decays
The decays of the $B^{+}$ meson to the final state $D^{*-}D^{+}_{s}\pi^{+}$ are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb$^{-1}$. [...]
CERN-EP-2024-110 ; LHCB-PAPER-2024-001.
- 2024.
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2024-05-02
08:44
Search for new resonances decaying to pairs of merged diphotons in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
A search is presented for an extended Higgs sector with two new particles, $ \mathrm{X} $ and $ \phi $, in the process $ \mathrm{X} \to \phi\phi \to (\gamma\gamma)(\gamma\gamma) $. [...]
CERN-EP-2024-101 ; CMS-EXO-22-022-003.
- 2024.
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2024-05-02
04:24
AGN constraints on neutrino-dark matter scattering / Cline, James M. (CERN ; McGill U.)
The IceCube collaboration has identified neutrinos of energy $\sim 10-100$ TeV from the blazar TXS 0506+056 and the active galaxy NGC 1068, which must have traveled through a dense dark matter spike surrounding the supermassive black holes that power the galactic nuclei. [...]
CERN-TH-2024-053 ; arXiv:2404.19471.
- 1 p.
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2024-05-02
04:24
First observation of $\Lambda_{b}^{0} \rightarrow \Sigma_c^{(*)++} D^{(*)-} K^{-}$ decays / LHCb Collaboration
The four decays, $\Lambda_{b}^{0} \rightarrow \Sigma_c^{(*)++} D^{(*)-} K^{-}$, are observed for the first time using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of $13\,\rm{TeV}$, corresponding to an integrated luminosity of $6\,\rm{fb}^{-1}$. [...]
LHCb-PAPER-2023-044 ; CERN-EP-2024-098 ; arXiv:2404.19510.
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2024-04-30
08:07
Search for heavy neutral Higgs bosons decaying into a top quark pair in 140 fb$^{-1}$ of proton–proton collision data at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for heavy pseudo-scalar ($A$) and scalar ($H$) Higgs bosons decaying into a top-quark pair ($t\bar{t}$) has been performed with 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=13$ TeV. [...]
arXiv:2404.18986 ; CERN-EP-2024-090.
- 2024. - 71 p, 71 p.
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2024-04-29
11:10
Search for the Z boson decay to $ \tau\tau\mu\mu $ in proton-proton collisions at $ \sqrt{s}= $ 13 TeV / CMS Collaboration
The first search for the $\mathrm{Z}$ boson decay to $ \tau\tau\mu\mu $ at the CERN LHC is presented, based on data collected by the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb$ ^{-1} $. [...]
arXiv:2404.18298 ; CMS-SMP-22-016 ; CERN-EP-2024-107 ; CMS-SMP-22-016-003.
- 2024. - 33 p.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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2024-04-29
09:48
Search for pair production of boosted Higgs bosons via vector-boson fusion in the $b\bar{b}b\bar{b}$ final state using $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for Higgs boson pair production via vector-boson fusion is performed in the Lorentz-boosted regime, where a Higgs boson candidate is reconstructed as a single large-radius jet, using 140 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} = 13$ TeV recorded by the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2404.17193 ; CERN-EP-2024-092.
- 2024. - 42 p.
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2024-04-27
07:20
Cosmic-ray searches with the MATHUSLA detector / Alpigiani, Cristiano (Washington U., Seattle) ; Arteaga-Velázquez, J C (IFM-UMSNH, Michoacan) ; Blanco-Lira, Daniela (Puebla U., Mexico) ; Boscherini, Davide (INFN, Bologna) ; Caballero-Mora, K S (Chiapas Autonoma U.) ; Camarri, Paolo (INFN, Rome2 ; Rome U., Tor Vergata) ; Cardarelli, Roberto (INFN, Rome2) ; Ramírez, Dennis Cazar (San Francisco de Quito U.) ; Di Sciascio, Giuseppe (INFN, Rome2) ; Fernández Téllez, Arturo (Puebla U., Mexico) et al.
The performance of the proposed MATHUSLA detector as an instrument for studying the physics of cosmic rays by measuring extensive air showers is presented. [...]
arXiv:2311.07704.
- 2023. - 64 p.
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