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CERN Document Server Намерени са 177 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.57 секунди. 
1.
First detection of a tagged neutrino in the NA62 experiment / NA62 Collaboration
The NA62 experiment at the CERN SPS reports the first detection of a tagged neutrino candidate based on the data collected in 2022. [...]
arXiv:2412.04033. - 16.
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2.
Observation of the $K^+ \to \pi^+ \nu \bar\nu$ decay and measurement of its branching ratio / Cortina Gil, Eduardo (Louvain U., CP3) ; Jerhot, Jan (Louvain U., CP3 ; Munich, Max Planck Inst.) ; Lurkin, Nicolas (Louvain U., CP3) ; Bryman, Douglas (British Columbia U. ; TRIUMF) ; Numao, Toshio (TRIUMF) ; Velghe, Bob (TRIUMF) ; Wong, Vincent Wai Sum (TRIUMF) ; Hives, Zdenko (Charles U.) ; Husek, Tomas (Charles U. ; Birmingham U.) ; Kampf, Karol (Charles U.) et al.
A measurement of the $K^+ \to \pi^+ \nu \bar\nu$ decay by the NA62 experiment at the CERN SPS is presented, using data collected in 2021 and 2022. This dataset was recorded, after modifications to the beamline and detectors, at a higher instantaneous beam intensity with respect to the 2016–2018 data taking. [...]
arXiv:2412.12015; CERN-EP-2024-343.- Geneva : CERN, 2024 - 29 p. Draft (restricted): PDF; Fulltext: CERN-EP-2024-343 - PDF; 2412.12015 - PDF;
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3.
Empty-bucket techniques for spill-quality improvement at the CERN Super Proton Synchrotron / Arrutia Sota, Pablo A (CERN) ; Fraser, Matthew A (CERN) ; Hagmann, Gregoire (CERN) ; Kain, Verena (CERN) ; Papotti, Giulia (CERN) ; Spierer, Arthur (CERN) ; Velotti, Francesco M (CERN) ; Burrows, Philip N (JAI, UK) ; Piandani, Roberto (San Luis Potosi U.)
Synchrotrons can provide long spills of particles by employing resonant extraction where the circulating beam is slowly ejected over thousands to millions of turns by exploiting the amplitude growth caused by a transverse resonance. In the CERN Super Proton Synchrotron (SPS), this method is used to satisfy the experimental requests of the North Area. [...]
2024 - 14 p. - Published in : Phys. Rev. Accel. Beams 27 (2024) 074001 Fulltext: PDF;
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4.
First search for $K^+ \to \pi^0 \pi \mu e$ decays / NA62 Collaboration
The first search for the lepton number violating decay $K^+ \to \pi^0 \pi^- \mu^+ e^+$ and lepton flavour violating decays $K^+ \to \pi^0 \pi^+ \mu^- e^+$, $K^+ \to \pi^0 \pi^+ \mu^+ e^-$ has been performed using a dataset collected by the NA62 experiment at CERN in 2016–2018. Upper limits of $2.9\times 10^{-10}$, $3.1 \times 10^{-10}$ and $5.0 \times 10^{-10}$, respectively, are obtained at 90% CL for the branching ratios of the three decays on the assumption of uniform phase-space distributions..
arXiv:2409.12981; CERN-EP-2024-224.- Geneva : CERN, 2024-11-12 - 9 p. - Published in : Phys. Lett. B 859 (2024) 139122 Draft (restricted): PDF; Fulltext: CERN-EP-2024-224 - PDF; 2409.12981 - PDF; Publication - PDF;
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5.
SPS fixed target spill quality improvements in the longitudinal plane / Papotti, Giulia (CERN) ; Spierer, Arthur (CERN) ; Quartullo, Danilo (CERN) ; Hagmann, Gregoire (CERN) ; Karpov, Ivan (CERN) ; Piandani, Roberto (San Luis Potosi U.)
The SPS proton fixed target beams are spilled via a third integer resonant extraction, for which high momentum spread is beneficial. To increase the momentum spread prior to the slow extraction, the bunches are stretched at the unstable phase by inverting the sign of the RF voltage. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) TUPA157 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPA157
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6.
RF techniques for spill quality improvement in the SPS / Sota, P A Arrutia (CERN ; JAI, UK) ; Fraser, M A (CERN) ; Velotti, F M (CERN) ; Burrows, P N (JAI, UK) ; Kain, V (CERN) ; Papotti, G (CERN) ; Piandani, R (CERN ; San Luis Potosi U.) ; Roncarolo, F (CERN) ; Spierer, A (CERN) ; Vadai, M (CERN)
The CERN Super Proton Synchrotron (SPS) aims at providing stable proton spills of several seconds to the North Area (NA) fixed target experiments via third-integer resonant slow extraction. However, low-frequency power converter ripple (primarily at 50 and 100 Hz) and high-frequency structures (mainly at harmonics of the revolution frequency) modulate the extracted intensity, which can compromise the performance of the data acquisition systems of the NA experiments. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) MOPA116 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA116
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7.
Development of a new CEDAR for kaon identification at the NA62 experiment at CERN / NA62 Collaboration
The NA62 experiment at CERN utilises a differential Cherenkov counter with achromatic ring focus (CEDAR) for tagging kaons within an unseparated monochromatic beam of charged hadrons. The CEDAR-H detector was developed to minimise the amount of material in the path of the beam by using hydrogen gas as the radiator medium. [...]
arXiv:2312.17188; CERN-EP-2023-302.- Geneva : CERN, 2024-05-07 - 20 p. - Published in : JINST 19 (2024) P05005 Draft (restricted): PDF; Fulltext: 2312.17188 - PDF; document - PDF; CERN-EP-2023-302 - PDF;
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8.
High Intensity Kaon Experiments (HIKE) at the CERN SPS: Proposal for Phases 1 and 2 / HIKE Collaboration
A timely and long-term programme of kaon decay measurements at an unprecedented level of precision is presented, leveraging the capabilities of the CERN Super Proton Synchrotron (SPS). [...]
arXiv:2311.08231 ; CERN-SPSC-2023-031 ; SPSC-P-368. - 2023. - 147 p.
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9.
Search for leptonic decays of dark photons at NA62Search for Leptonic Decays of Dark Photons at NA62 / NA62 Collaboration
The NA62 experiment at CERN, configured in beam-dump mode, has searched for dark photon decays in flight to electron-positron pairs using a sample of $1.4 \times 10^{17}$ protons on dump collected in 2021. No evidence for a dark photon signal is observed. [...]
arXiv:2312.12055; CERN-EP-2023-296.- Geneva : CERN, 2024-09-11 - 10 p. - Published in : Phys. Rev. Lett. 133 (2024) 111802 Draft (restricted): PDF; Fulltext: CERN-EP-2023-296 - PDF; 2312.12055 - PDF; Publication - PDF;
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10.
Measurement of prompt $D^+$ and $D^+_{s}$ production in $p\mathrm{Pb}$ collisions at $\sqrt {s_{\mathrm{NN}}}=5.02\,$TeV / LHCb Collaboration
The production of prompt $D^+$ and $D^+_{s}$ mesons is studied in proton-lead collisions at a centre-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=5.02\,$TeV. The data sample corresponding to an integrated luminosity of $(1.58\pm0.02)\mathrm{nb}^{-1}$ is collected by the LHCb experiment at the LHC. [...]
arXiv:2309.14206; CERN-EP-2023-142; LHCb-PAPER-2023-006.- 2024-01-15 - 45 p. - Published in : JHEP 2401 (2024) 070 Fulltext: document - PDF; 2309.14206 - PDF;
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CERN Document Server : Намерени са 177 записа   1 - 10следващкрай  отиване на запис:
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53 Piandani, R.
105 Piandani, Roberto
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