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Development of the kaon tagging system for the NA62 experiment at CERN
/ Goudzovski, Evgueni (Birmingham U.) ; Krivda, Marian (Birmingham U. ; Kosice, IEF) ; Lazzeroni, Cristina (Orsay) ; Massri, Karim (Birmingham U.) ; Newson, Francis O. (Birmingham U.) ; Pyatt, Simon (Birmingham U.) ; Romano, Angela (Birmingham U.) ; Serghi, Xen (Birmingham U.) ; Sergi, Antonino (Birmingham U.) ; Staley, Richard J. (Birmingham U.) et al.
The NA62 experiment at CERN aims to make a precision measurement of the ultra-rare decay $K^{+} \rightarrow \pi^{+}\nu\overline{\nu}$, and relies on a differential Cherenkov detector (KTAG) to identify charged kaons at an average rate of 50 MHz in a 750 MHz unseparated hadron beam. The experimental sensitivity of NA62 to K-decay branching ratios (BR) of $10^{-11}$ requires a time resolution for the KTAG of better than 100 ps, an efficiency better than 95% and a contamination of the kaon sample that is smaller than $10^{-4}$. [...]
arXiv:1509.03773.-
2015-11-21 - 10 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 801 (2015) 86-94
Preprint: PDF; External link: Preprint
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AION: An Atom Interferometer Observatory and Network
/ Badurina, L. (King's Coll. London) ; Bentine, E. (U. Oxford (main)) ; Blas, D. (King's Coll. London) ; Bongs, K. (Birmingham U.) ; Bortoletto, D. (U. Oxford (main)) ; Bowcock, T. (U. Liverpool (main)) ; Bridges, K. (U. Liverpool (main)) ; Bowden, W. (Teddington, Natl. Phys. Lab ; Imperial Coll., London) ; Buchmueller, O. (Imperial Coll., London) ; Burrage, C. (U. Nottingham) et al.
We outline the experimental concept and key scientific capabilities of AION (Atom Interferometer Observatory and Network), a proposed UK-based experimental programme using cold strontium atoms to search for ultra-light dark matter, to explore gravitational waves in the mid-frequency range between the peak sensitivities of the LISA and LIGO/Virgo/ KAGRA/INDIGO/Einstein Telescope/Cosmic Explorer experiments, and to probe other frontiers in fundamental physics. AION would complement other planned searches for dark matter, as well as probe mergers involving intermediate mass black holes and explore early universe cosmology. [...]
arXiv:1911.11755; AION-2019-001; CERN-TH-2019-199.-
2020-05-06 - 28 p.
- Published in : JCAP 2005 (2020) 011
Fulltext: PDF;
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3.
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The ($t, p$) reaction on $^{66}$Ni
/ Kay, B P (Department of Physics, University of York, Heslington, York YO10 5DD, UK) ; Chiara, C J (Dept. of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA and Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Raabe, R (Leuven U.) ; Andreyev, A N (Department of Physics, University of York, Heslington, York YO10 5DD, UK) ; Back, B B (Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Boston, A J (Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK) ; Butler, P A (Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK) ; Carpenter, M P (Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Catford, W N (Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK) ; Cederkall, J (Physics Department, Lund University, Box 118, SE-221 00 Lund, Sweden) et al.
CERN-INTC-2012-066 ; INTC-P-367.
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2012.
Fulltext
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Search for lepton number and flavour violation in $K^+ $ and $\pi^0$ decays
/ NA62 Collaboration
Searches for the lepton number violating $K^+ \to \pi^− \mu^+ e^+$ decay and the lepton flavour violating $K^+ \to \pi^+ \mu^- e^+$ and $\pi^0 \to \mu^- e^+$ decays are reported using data collected by the NA62 experiment at CERN in 2017$-$2018. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level: B($K^+ \to \pi^− \mu^+ e^+$) $< 4.2 \times 10^{−11}$, B($K^+ \to \pi^+ \mu^- e^+$) $< 6.6 \times 10^{−11}$ and B($\pi^0 \to \mu^- e^+$) $< 3.2 \times 10^{−10}$. [...]
arXiv:2105.06759; CERN-EP-2021-090.-
Geneva : CERN, 2021-09-24 - 8 p.
- Published in : Phys. Rev. Lett. 127 (2021) 131802
Draft (restricted): PDF; Fulltext: 2105.06759 - PDF; CERN-EP-2021-090 - PDF; Publication - PDF; Fulltext from publisher: PDF;
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The HEV Ventilator
/ Buytaert, J (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Collins, P (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Abed Abud, A (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Allport, P (Particle Physics Group, School of Physics and Astronomy, University of Birmingham, B15 2TT, United Kingdom) ; Pazos Alvarez, A (Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, 15782 Galicia, Spain) ; Akiba, K (Nikhef National Institute for Subatomic Physics, Amsterdam, 1098 XG, Netherlands) ; Augusto de Aguiar Francisco, O (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) ; Bay, A (Institute of Physics, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland) ; Bernard, F (Institute of Physics, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland) ; Baron, S (European Organization for Nuclear Research (CERN), CH-1211 Genève 23, Switzerland) et al.
HEV is a low-cost, versatile, high-quality ventilator, which has been designed in response to the COVID-19 pandemic. The ventilator is intended to be used both in and out of hospital intensive care units, and for both invasive and non-invasive ventilation. [...]
EP-Tech-Note-2020-002.-
Geneva : CERN, 2020 - 8 p.
Fulltext: PDF;
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6.
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Search for heavy neutral lepton production in $K^+$ decays
/ NA62 Collaboration
A search for heavy neutral lepton production in $K^+$ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper limits at the $10^{-7}$ to $10^{-6}$ level are established on the elements of the extended neutrino mixing matrix $|U_{\ell 4}|^2$ ($\ell=e,\mu$) for heavy neutral lepton mass in the range $170-448~{\rm MeV}/c^2$. [...]
arXiv:1712.00297; CERN-EP-2017-311.-
Geneva : CERN, 2018-03-10 - 9 p.
- Published in : Phys. Lett. B 778 (2018) 137-145
Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: arXiv:1712.00297 - PDF; CERN-EP-2017-311 - PDF;
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Simultaneous spectroscopy of $\gamma$ rays and conversion electrons: Systematic study of $E$0 transitions and intruder states in close vicinity of mid-shell point in odd-Au isotopes
/ Venhart, Martin (Institute of Physics, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia) ; Wood, John Lee (School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, USA) ; Backai, Julius (Institute of Physics, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia) ; Balogh, Matus (Institute of Physics, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia) ; Boston, Andrew (Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK) ; Cocolios, Thomas Elias (School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom) ; Harkness-Brennan, Laura (Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK) ; Herzberg, Rolf-Dietmar (Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK) ; Hlavac, Stanislav (Institute of Physics, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia) ; Joss, David (Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK) et al.
CERN-INTC-2015-033 ; INTC-P-302-ADD-1.
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2015.
Fulltext - Original Document (INTC-P-302)
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