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CERN Document Server 2,038 records found  1 - 10nextend  jump to record: Search took 0.26 seconds. 
1.
(100)
Search for Dark Matter at NA62 and NA64 experiments / Duk, Viacheslav (INFN, Perugia) ; Kirsanov, Mikhail (Moscow, INR) /NA62 Collaboration ; NA64 Collaboration
Searches for Dark Matter with the NA62 and NA64 experiments at CERN are presented. In the NA62 experiment the search is in the decays $A^\prime \to \mu \mu$ and $A^\prime \to e e$, where $A^\prime$ is a new vector particle corresponding to a vector mediator field. [...]
2024 - 4 p. - Published in : PoS LHCP2023 (2024) 178 Fulltext: PDF;
In : 11th Large Hadron Collider Physics Conference 2023, Belgrade, Serbia, 22 - 26 May 2023, pp.178
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2.
(91)
First results on the $K^+ \to \pi^+ \nu \bar{\nu}$ decay search from NA62 / Duk, Viacheslav (Birmingham U.) /NA62
The precise measurement of the branching ratio of an ultrarare decay $K^+ \rightarrow \pi^+\nu\bar{\nu}$ (~10$^{-10}$ according to the calculation within the Standard Model) allows to probe New Physics via indirect effects at mass scales higher than those accessible at the LHC. The NA62 experiment at the CERN SPS is aimed at measuring this branching ratio with the 10% precision. [...]
2018 - 8 p. - Published in : EPJ Web Conf. 191 (2018) 01002 Fulltext: PDF;
In : Quarks-2018, Valday, Russian Federation, 27 May - 2 Jun 2018, pp.01002
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3.
(88)
Searches for lepton flavor and lepton number violation in $K^+$ decays with NA62 / Duk, V (INFN, Perugia) /NA62 Collaboration
The NA62 experiment at the CERN SPS provides unique opportunity to study rare and forbidden decays of $K^{+}$ mesons. Using the data collected in 2017 a search for the lepton number violating decays $K^{+}$ → $\pi^-$ $\mu^+$ $\mu^+$and $K^{+}$ → $\pi^-$ $e^{+}$ $e^{+}$ has been performed. [...]
2020 - 5 p. - Published in : J. Phys.: Conf. Ser. 1526 (2020) 012014 Fulltext: PDF;
In : International Conference on Kaon Physics 2019, Perugia, Italy, 10 - 13 Sep 2019, pp.012014
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4.
(88)
Dark sector searches at NA64-$e$ / Celentano, Andrea (INFN, Genoa) /NA64 Collaboration
The Light Dark Matter (LDM) hypothesis identifies dark matter particles with new sub-GeV "Hidden Sector'' states, neutral under Standard Model interactions and interfacing with our world through a new force. In the simplest model, the new interaction is mediated by a massive vector particle, also called "dark photon'' ($A^\prime$), kinetically mixed with the ordinary photon. [...]
2024 - 6 p. - Published in : PoS WIFAI2023 (2024) 014 Fulltext: PDF;
In : Workshop Italiano sulla Fisica ad Alta Intensita (WIFAI 2023), Rome, Italy, 8 - 10 Nov 2023, pp.014
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5.
(66)
Photoproduction of axionlike particles in the NA64 experiment / Dusaev, R.R. (Tomsk State U.) ; Kirpichnikov, D.V. (Moscow, INR) ; Kirsanov, M.M. (Moscow, INR)
Axion-like particles $a$ (ALPs) that couple to the Standard Model (SM) gauge fields could be observed in the high-energy photon scattering $\gamma N\to N a$ off nuclei followed by the $a\to \gamma\gamma$ decay. In the present paper we describe the calculation of the ALP production cross-section and the properties of this production. [...]
arXiv:2004.04469.- 2020-09-29 - 8 p. - Published in : Phys. Rev. D 102 (2020) 055018 Article from SCOAP3: PDF; Fulltext: PDF;
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6.
(52)
Semivisible dark photon phenomenology at the GeV scale / Abdullahi, Asli M. (Fermilab) ; Hostert, Matheus (Perimeter Inst. Theor. Phys. ; Minnesota U. ; Minnesota U., Theor. Phys. Inst. ; Cambridge U., DAMTP) ; Massaro, Daniele (Bologna U. ; INFN, Bologna ; Louvain U., CP3) ; Pascoli, Silvia (Bologna U. ; INFN, Bologna ; CERN)
In rich dark sector models, dark photons heavier than tens of MeV can behave as semi-visible particles: their decays contain both visible and invisible final states. We present models containing multiple dark fermions which allow for such decays and inscribe them in the context of inelastic dark matter and heavy neutral leptons scenarios. [...]
arXiv:2302.05410; CERN-TH-2023-019; FERMILAB-PUB-23-054-T; IRMP-CP3-23-08.- 2023-07-01 - 41 p. - Published in : Phys. Rev. D 108 (2023) 015032 Fulltext: FERMILAB-PUB-23-054-T - PDF; 2302.05410 - PDF; 9b96e5a82037abdd0450babafa9d8b60 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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7.
(44)
NA64 Status Report 2019 / Gninenko, S
The status of the NA64 experiment aiming at a search for a sub-GeV vector mediator ($A'$) of dark matter ($\chi$) production is presented. [...]
CERN-SPSC-2019-024 ; SPSC-SR-255. - 2019.
Fulltext
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8.
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Addendum to the NA64 Proposal: Search for the $A'\to invisible$ and $X\to e^+e^-$ decays in 2021 / Gninenko, Sergei
The experiment NA64 is aimed at a direct search for sub-GeV vector mediator $A'$ of Dark Matter production in invisible $A'$ decay mode [...]
CERN-SPSC-2018-004 ; SPSC-P-348-ADD-2. - 2018.
Fulltext - Original Document (SPSC-P-348)
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9.
(40)
New results for searches of exotic decays with NA62 in beam dump mode / Schubert, Jonathan Leon (Munich, Max Planck Inst.) /NA62 Collaboration
The NA62 experiment at CERN has been taking data since 2016 with the main goal of measuring the decay $K^+\to\pi^+\nu\bar\nu$.The NA62 experiment can be run as a beam dump experiment by removing the kaon production target and moving the upstream collimators into a closed position.We report on the search for visible decays of exotic mediators from data taken in beam dump mode with the NA62 experiment.More than $10^{17}$ protons on target have been collected in this way during a week long data taking campaign by the NA62 experiment.We report on new results from analysis of this data, with a particular emphasis on the dark photon model..
2024 - 6 p. - Published in : PoS EPS-HEP2023 (2024) 045 Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.045
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10.
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Prospects for $K+ \rightarrow \pi^+ \nu \bar{\nu}$ observation at CERN in NA62 / Duk, Viacheslav (INFN, Perugia) /NA62
2016 - Published in : Nuovo Cimento C 38 (2016) 133 Fulltext: PDF;
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