CERN Accelerating science

CERN Document Server 155 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.66 δευτερόλεπτα. 
1.
Physics Beyond the Standard Model with the NA62 experiment at CERN / NA62 Collaboration
The first measurement of the branching ratio of the ultra-rare $K^+ \to \pi^+\nu\bar\nu$ decay and the searches for production of feebly interacting particles predicted by dark scalar models from the NA62 experiment at CERN are presented. The results of a search for in-flight decays of dark photon to $\ell^+\ell^-$ pairs with data collected in beam-dump mode in 2021 are also reported..
2024 - 4 p. - Published in : PoS TAUP2023 (2024) 040 Fulltext: PDF;
In : 18th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2023), Vienna, Austria, 28 Aug - 1 Sep 2023, pp.040
2.
Proposal of the KOTO II experiment / KOTO Collaboration
The KOTO II experiment is proposed to measure the branching ratio of the decay $K_L\to\pi^0\nu\bar{\nu}$ at J-PARC. [...]
arXiv:2501.14827.
- 75.
Fulltext
3.
Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA / H1 Collaboration
In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. [...]
arXiv:2412.14092 ; DESY24-200.
- 15.
Fulltext
4.
Search for hadronic decays of feebly-interacting particles at NA62 / 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.
The NA62 experiment at CERN has the capability to collect data in a beam-dump mode, where 400 GeV protons are dumped on an absorber. In this configuration, New Physics particles, including dark photons, dark scalars, and axion-like particles, may be produced in the absorber and decay in the instrumented volume beginning approximately 80 m downstream of the dump. [...]
arXiv:2502.04241; CERN-EP-2025-012.- Geneva : CERN, 2025 - 17 p. Draft (restricted): PDF; Fulltext: CERN-EP-2025-012 - PDF; 2502.04241 - PDF;
5.
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, 2025-02 - 29 p. - Published in : JHEP 2502 (2025) 191 Draft (restricted): PDF; Fulltext: CERN-EP-2024-343 - PDF; 2412.12015 - PDF;
6.
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. The candidate consists of a $K^+ \rightarrow \mu^+ \nu_{\mu}$ decay where the charged particles are reconstructed and the neutrino is detected through a charged-current interaction in a liquid krypton calorimeter..
arXiv:2412.04033; CERN-EP-2024-324.- Geneva : CERN, 2025-02-27 - 16 p. - Published in : Phys. Lett. B 863 (2025) 139345 Draft (restricted): PDF; Fulltext: CERN-EP-2024-324 - PDF; 2412.04033 - PDF;
7.
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;
8.
Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame / H1 Collaboration
The Breit frame provides a natural frame to analyze lepton-proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged boson defines the coordinate system such that the struck quark is back-scattered along the virtual photon momentum direction. [...]
arXiv:2403.08982; DESY-24-034.- 2024-07-22 - 13 p. - Published in : Eur. Phys. J. C 84 (2024) 720 Fulltext: 2403.08982 - PDF; document - PDF;
9.
Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA / H1 Collaboration
The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at $\sqrt{s}=319$ GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of $351$ pb$^{-1}$. Event shapes provide incisive probes of perturbative and non-perturbative QCD. [...]
arXiv:2403.10134; DESY-24-036.- 2024-07-22 - 32 p. - Published in : Eur. Phys. J. C 84 (2024) 718 Fulltext: 2403.10134 - PDF; document - PDF;
10.
Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA / H1 Collaboration
The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $\tau_1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $\tau_1^b$ is equivalent to a thrust observable defined in the Breit frame. [...]
arXiv:2403.10109; DESY-24-035.- 2024-08-07 - 45 p. - Published in : Eur. Phys. J. C 84 (2024) 785 Fulltext: 2403.10109 - PDF; document - PDF;

CERN Document Server : 155 εγγραφές βρέθηκαν   1 - 10επόμενοτέλος  μετάβαση στην εγγραφή:
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24 Dainton, J
2 Dainton, J B
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148 Dainton, J.B.
35 Dainton, John
5 Dainton, John B
1 Dainton, John B.
33 Dainton, John Bourke
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