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CERN Document Server Sök i 2,040 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 1.62 sekunder. 
1.
(100)
Hunting down the X17 boson at the CERN SPS / NA64 Collaboration
Recently, the ATOMKI experiment has reported new evidence for the excess of $e^+ e^-$ events with a mass $\sim$17 MeV in the nuclear transitions of $^4$He, that they previously observed in measurements with $^8$Be. These observations could be explained by the existence of a new vector $X17$ boson. [...]
arXiv:2009.02756.- 2020-12-15 - 17 p. - Published in : Eur. Phys. J. C 80 (2020) 1159 Article from SCOAP3: PDF; Fulltext: PDF;
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2.
(78)
Probing the explanation of the muon (g-2) anomaly and thermal light dark matter with the semi-visible dark photon channel / Cazzaniga, C. (Zurich, ETH) ; Odagiu, P. (Zurich, ETH ; EPFL, Lausanne, FSL) ; Depero, E. (Zurich, ETH) ; Bueno, L. Molina (Zurich, ETH ; Valencia U., IFIC) ; Andreev, Yu. M. (Moscow, INR) ; Banerjee, D. (CERN ; Illinois U., Urbana (main)) ; Bernhard, J. (CERN) ; Burtsev, V.E. (Dubna, JINR) ; Charitonidis, N. (CERN) ; Chumakov, A.G. (Tomsk Pedagogical Inst. ; Tomsk Polytechnic U.) et al.
We report the results of a search for a new vector boson ($\gp$) decaying into two dark matter particles $\chi_1 \chi_2$ of different mass. The heavier $\chi_2$ particle subsequently decays to $\chi_1$ and $\gp \to \pair$. [...]
arXiv:2107.02021.- Geneva : CERN, 2021-10-30 - 6 p. - Published in : Eur. Phys. J. C 81 (2021) 959 Draft (restricted): PDF; Fulltext: 2107.02021 - PDF; document - PDF; CERN-EP-2021-129 - PDF;
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3.
(51)
The Search for Light Dark Matter at NA64 Experiment / Krasnikov, N V (Moscow, INR ; Dubna, JINR)
This minireview aim is to outline the main experimental results related to the search for LDM (light dark matter) at NA64 experiment at CERN. We discuss current results and the NA64 perspectives. [...]
2020 - 6 p. - Published in : Phys. Part. Nucl. 51 (2020) 697-702
In : International Bogolyubov Conference Problems of Theoretical and Mathematical Physics (BOG), Moscow, Russian Federation, 9 - 13 Sep 2019, pp.697-702
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4.
(34)
$K^{0}_{S}$ meson production in inelastic p+p interactions at 158 $\text{ GeV }/c$ beam momentum measured by NA61/SHINE at the CERN SPS / NA61/SHINE Collaboration
The production of $K^0_S$ mesons in inelastic $p+p$ collisions at beam momentum 158 GeV/$c$ ($\sqrt{s_{NN}} = 17.3$ GeV) was measured with the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. Double-differential distributions were obtained in transverse momentum and rapidity. [...]
arXiv:2106.07535; FERMILAB-PUB-21-282-AD-SCD; CERN-EP-2021-112.- Geneva : CERN, 2022-01-31 - 21 p. - Published in : Eur. Phys. J. C 82 (2022) 96 Draft (restricted): PDF; Fulltext: CERN-EP-2021-112 - PDF; fermilab-pub-21-282-ad-scd - PDF; document - PDF; 2106.07535 - PDF; Fulltext from publisher: PDF; External link: Fermilab Accepted Manuscript
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5.
(33)
Measurement of $\phi$ Meson Production in $p + p$ Interactions at 40, 80 and 158 GeV/$c$ with the NA61/SHINE Spectrometer at the CERN SPS / NA61/SHINE Collaboration
Results on $\phi$ meson production in inelastic p+p collisions at CERN SPS energies are presented. They are derived from data collected by the NA61/SHINE fixed target experiment, by means of invariant mass spectra fits in the $\phi \to K^+K^-$ decay channel. [...]
arXiv:1908.04601; FERMILAB-PUB-19-423-AD-ND-SCD.- 2020-03-03 - 26 p. - Published in : Eur. Phys. J. C 80 (2020) 199 Article from SCOAP3: PDF; Fulltext: fermilab-pub-19-423-ad-nd-scd - PDF; 1908.04601 - PDF; External link: Fermilab Library Server (fulltext available)
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6.
(33)
Measurements of $\Xi^-$ and $\overline{\Xi}^+$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experimentMeasurements of $\Xi^{-}$ and $\overline{\Xi}^{+}$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment / NA61/SHINE Collaboration
The production of $\Xi(1321)^{-}$ and $\overline{\Xi}(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/$c$. Double differential distributions in rapidity and transverse momentum are obtained from a sample of 33M inelastic events. [...]
arXiv:2006.02062; FERMILAB-PUB-20-496-AD-SCD; CERN-EP-2020-102.- Geneva : CERN, 2020-09-08 - 14 p. - Published in : Eur. Phys. J. C Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: document - PDF; erratum - PDF; fermilab-pub-20-496-ad-scd - PDF; 2006.02062 - PDF; CERN-EP-2020-102 - PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF; External link: Fermilab Library Server (fulltext available)
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7.
(33)
$K^{*}(892)^0$ meson production in inelastic p+p interactions at 158 GeV/$c$ beam momentum measured by NA61/SHINE at the CERN SPS / NA61/SHINE Collaboration
$K^{*}(892)^0$ resonance production via its $K^{+}\pi^{-}$ decay mode in inelastic p+p collisions at beam momentum 158 GeV/$c$ ($\sqrt{s_{NN}}=17.3$ GeV) is presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. [...]
arXiv:2001.05370; CERN-EP-2020-002.- Geneva : CERN, 2020-05-22 - 22 p. - Published in : Eur. Phys. J. C 80 (2020) 460 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: 2001.05370 - PDF; CERN-EP-2020-002 - PDF; Fulltext from publisher: PDF;
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8.
(31)
Improved limits on a hypothetical X(16.7) boson and a dark photon decaying into $e^+e^-$ pairs / NA64 Collaboration
The improved results on a direct search for a new $X$(16.7 MeV) boson which could explain the anomalous excess of $e^+e^-$ pairs observed in the excited $^8Be^*$ nucleus decays ("Berillium anomaly") are reported. Due to its coupling to electrons, the $X$ boson could be produced in the bremsstrahlung reaction $e^-Z\rightarrow e^-ZX$ by a high-energy beam of electrons incident on active target in the NA64 experiment at the CERN SPS and observed through its subsequent decay into $e^+e^-$ pair. [...]
arXiv:1912.11389; CERN-EP-2019-284.- 2020-04-17 - 7 p. - Published in : Phys. Rev. D 101 (2020) 071101 Article from SCOAP3: PDF; Fulltext: PDF;
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9.
(29)
Straw Chambers for the NA64 Experiment / Volkov, V Yu (SINP, Moscow) ; Volkov, P V (Dubna, JINR) ; Enik, T L (Dubna, JINR) ; Kekelidze, G D (Dubna, JINR) ; Kramarenko, V A (Dubna, JINR) ; Lysan, V M (Dubna, JINR) ; Peshekhonov, D V (Dubna, JINR) ; Solin, A A (Minsk, Inst. Nucl. Problems) ; Solin, A V (Minsk, Inst. Nucl. Problems)
The aim of this work is to describe the characteristics and properties of the particle-tracking detectors created at the Joint Institute for Nuclear Research by the glued straw tube technology for the NA64 experiment on the extracted electron beam of the CERN SPS. The physical task of the experiment is to search for phenomena of the dark sector and dark matter..
2019 - 12 p. - Published in : Phys. Part. Nucl. Lett. 16 (2019) 847-858
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10.
(28)
Measurements of two-pion HBT correlations in Be+Be collisions at 150A GeV/c beam momentum, at the NA61/SHINE experiment at CERN / NA61/SHINE Collaboration
This paper reports measurements of two-pion Bose-Einstein (HBT) correlations in Be+Be collisions at a beam momentum of 150$A\,\mbox{GeV}/\textit{c}$ by the $\mbox{NA61/SHINE}$ experiment at the CERN SPS accelerator. The obtained momentum space correlation functions can be well described by a Lévy distributed source model. [...]
arXiv:2302.04593; FERMILAB-PUB-23-057-AD.- 2023-10-11 - 23 p. - Published in : Eur. Phys. J. C 83 (2023) 919 Fulltext: 2302.04593 - PDF; 3c4b55c4dbcf4133711c5d72abee1094 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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