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CERN Document Server 16 records found  1 - 10next  jump to record: Search took 0.66 seconds. 
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 p, 16.
Fulltext
2.
Not yet available
SG2 Particle Detectors / Ghassabian, Zohreh (speaker) ; Wheeler, Sam (speaker) ; Dodek, Martin (speaker) ; Rosa, Ilaria (speaker) ; Dávila Lacoste, Cinthia Daniela (speaker)
2024 - 1322. Teacher Programmes; International Teacher Weeks Programme External links: Talk details; Event details In : International Teacher Weeks Programme
3.
Latest results from the NA62 experiment at CERN: Precision measurements and searches in beam-dump mode / Rosa, Ilaria (SSM, Naples ; INFN, Naples) /NA62 Collaboration
The NA62 experiment at CERN is designed to study the physics of the K+ meson. After collecting data in 2016, 2017, and 2018, the experiment has resumed data taking in 2021 and has received approval for operations until the onset of long shutdown 3. [...]
2024 - 6 p. - Published in : Nuovo Cimento C 47 (2024) 91 Fulltext: PDF;
In : 19th Incontri di Fisica delle Alte Energie, Catania, Italy, 12 - 14 Apr 2023, pp.91
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;
5.
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;
6.
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.
Fulltext - Fulltext
7.
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;
8.
Measurement of the $K^+ \to \pi^+ \gamma \gamma$ decay / NA62 Collaboration
A sample of 3984 candidates of the $K^+ \to \pi^+ \gamma \gamma$ decay, with an estimated background of $291 \pm 14$ events, was collected by the NA62 experiment at CERN during 2017–2018. In order to describe the observed di-photon mass spectrum, the next-to-leading order contribution in chiral perturbation theory was found to be necessary. [...]
arXiv:2311.01837; CERN-EP-2023-247.- Geneva : CERN, 2024-02-07 - 11 p. - Published in : Phys. Lett. B 850 (2024) 138513 Draft (restricted): PDF; Fulltext: 2311.01837 - PDF; Publication - PDF; CERN-EP-2023-247 - PDF;
9.
Search for $K^+$ decays into the $\pi^+e^+e^-e^+e^-$ final state / NA62 Collaboration
The first search for ultra-rare $K^+$ decays into the $\pi^+e^+e^-e^+e^-$ final state is reported, using a dataset collected by the NA62 experiment at CERN in 2017-2018. An upper limit of $1.4\times 10^{-8}$ at 90% CL is obtained for the branching ratio of the $K^+\to\pi^+e^+e^-e^+e^-$ decay, predicted in the Standard Model to be $(7.2 \pm0 .7)\times 10^{-11}$. [...]
arXiv:2307.04579; CERN-EP-2023-133.- Geneva : CERN, 2023-09-22 - 9 p. - Published in : Phys. Lett. B 846 (2023) 138193 Draft (restricted): PDF; Fulltext: CERN-EP-2023-133 - PDF; Publication - PDF; 2307.04579 - PDF;
10.
A study of the $K^+ \to \pi^0 e^+ \nu \gamma$ decay / NA62 Collaboration
A sample of $1.3 \times 10^5 K^+ \to \pi^0 e^+ \nu \gamma$ candidates with less than 1% background was collected by the NA62 experiment at the CERN SPS in 2017-2018. Branching fraction measurements are obtained at percent relative precision in three restricted kinematic regions, improving on existing results by a factor larger than two. [...]
arXiv:2304.12271; CERN-EP-2023-069.- Geneva : CERN, 2023-09-07 - 16 p. - Published in : JHEP 2309 (2023) 040 Draft (restricted): PDF; Fulltext: CERN-EP-2023-069 - PDF; 2304.12271 - PDF; document - PDF;

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