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Insertion of STC into TRT at the Department of Physics, Oxford
Credit: CERN

Samuel Henry

Detector Development Scientist

Research theme

  • Instrumentation
  • Fundamental particles and interactions

Sub department

  • Particle Physics

Research groups

  • ATLAS
  • ePIC
Samuel.Henry@physics.ox.ac.uk
Telephone: 01865 (2)73378
Denys Wilkinson Building, room 624
  • About
  • Research
  • Public Engagement
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  • Publications

Measurement of the positive muon anomalous magnetic moment to 0.46 ppm

Physical Review Letters American Physical Society 126 (2021) 141801

Authors:

B Abi, Farrukh Azfar, S Henry

Abstract:

We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g−2 Experiment for the positive muon magnetic anomaly aμ≡(gμ−2)/2. The anomaly is determined from the precision measurements of two angular frequencies. Intensity variation of high-energy positrons from muon decays directly encodes the difference frequency ωa between the spin-precession and cyclotron frequencies for polarized muons in a magnetic storage ring. The storage ring magnetic field is measured using nuclear magnetic resonance probes calibrated in terms of the equivalent proton spin precession frequency ˜ω′p in a spherical water sample at 34.7 °C. The ratio ωa/˜ω′p, together with known fundamental constants, determines aμ(FNAL)=116592040(54)×10−11 (0.46 ppm). The result is 3.3 standard deviations greater than the standard model prediction and is in excellent agreement with the previous Brookhaven National Laboratory (BNL) E821 measurement. After combination with previous measurements of both μ+ and μ−, the new experimental average of aμ(Exp)=116592061(41)×10−11 (0.35 ppm) increases the tension between experiment and theory to 4.2 standard deviations.

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Exploring gravity with the MIGA large scale atom interferometer

Scientific Reports Nature Publishing Group (2018)

Authors:

B Canuel, A Bertoldi, L Amand, E Pozzo Di Borgo, T Chantrait, C Danquigny, M Dovale Alvarez, B Fang, A Freise, R Geiger, J Gillot, Samuel A Henry, J Hinderer, D Holleville, J Junca, G Lefèvre, M Merzougui, N Mielec, T Monfret, S Pelisson, M Prevedelli, S Reynaud, I Riou, Y Rogister, S Rosat, E Cormier, A Landragin, W Chaibi, S Gaffet, P Bouyer

Abstract:

We present the MIGA experiment, an underground long baseline atom interferometer to study gravity at large scale. The hybrid atom-laser antenna will use several atom interferometers simultaneously interrogated by the resonant mode of an optical cavity. The instrument will be a demonstrator for gravitational wave Exploring gravity with the MIGA large scale atom interferometer detection in a frequency band (100 mHz – 1 Hz) not explored by classical ground and space-based observatories, and interesting for potential astrophysical sources. In the initial instrument configuration, standard atom interferometry techniques will be adopted, which will bring to a peak strain sensitivity of 2·10−13/Hz at 2 Hz. This demonstrator will enable to study the techniques to push further the sensitivity for the future development of gravitational wave detectors based on large scale atom interferometers. The experiment will be realized at the underground facility of the Laboratoire Souterrain à Bas Bruit (LSBB) in Rustrel–France, an exceptional site located away from major anthropogenic disturbances and showing very low background noise. In the following, we present the measurement principle of an in-cavity atom interferometer, derive the method for Gravitational Wave signal extraction from the antenna and determine the expected strain sensitivity . We then detail the functioning of the different systems of the antenna and describe the properties of the installation site.
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LUMINEU: a search for neutrinoless double beta decay based on ZnMoO 4 scintillating bolometers

Journal of Physics: Conference Series Institute of Physics 718:6 (2016) 062008

Authors:

Eric Armengaud, Quentin Arnaud, Corinne Augier, Laurent Bergé, Roman S Boiko, Till Bergmann, Johannes Blümer, Alexandre Broniatowski, Victor Brudanin, Philippe Camus, Antoine Cazes, Maurice Chapellier, Florence Charlieux, Dmitry M Chernyak, Noël Coron, Philip Coulter, Fedor A Danevich, Thibault D Boissiére, Rodolphe Decourt, Maryvonne de Jesus, Laurent Devoyon, Anne-Aelle Drillien, Louis Dumoulin, Klaus Eitel, Christian Enss, Dmitry Filosofov, Andreas Fleischmann, Nadine Foerster, Nicolas Fourches, Jules Gascon, Loredano Gastaldo, Gilles Gerbier, Andrea Giuliani, Daniel Gray, Michel Gros, Lukas Hehn, Samuel Henry, Savajols Hervé, Geertje Heuermann, Vincent Humbert, Igor M Ivanov, Alex Juillard, Cecile Kéfélian, Matthias Kleifges, Holger Kluck, VV Kobychev, F Koskas, Vladislav Kozlov, Alain Benoît

Abstract:

The LUMINEU is designed to investigate the possibility to search for neutrinoless double beta decay in 100Mo by means of a large array of scintillating bolometers based on ZnMoO4 crystals enriched in 100Mo. High energy resolution and relatively fast detectors, which are able to measure both the light and the heat generated upon the interaction of a particle in a crystal, are very promising for the recognition and rejection of background events. We present the LUMINEU concepts and the experimental results achieved aboveground and underground with large-mass natural and enriched crystals. The measured energy resolution, the α/β discrimination power and the radioactive internal contamination are all within the specifications for the projected final LUMINEU sensitivity. Simulations and preliminary results confirm that the LUMINEU technology can reach zero background in the region of interest (around 3 MeV) with exposures of the order of hundreds kgXyears, setting the bases for a next generation 0v2β decay experiment capable to explore the inverted hierarchy region of the neutrino mass pattern.
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Simultaneous geomagnetic monitoring with multiple SQUIDs and fluxgate sensors across underground laboratories

E3S Web of Conferences EDP Sciences 12 (2016) 02003

Authors:

S Henry, E Pozzo di Borgo, C Danquigny, B Abi
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The Measurement of the Anomalous Magnetic Moment of the Muon at Fermilab a)

Journal of Physical and Chemical Reference Data AIP Publishing 44:3 (2015) 031211

Authors:

I Logashenko, J Grange, P Winter, RM Carey, E Hazen, N Kinnaird, JP Miller, J Mott, BL Roberts, J Crnkovic, WM Morse, H Kamal Sayed, V Tishchenko, VP Druzhinin, YM Shatunov, R Bjorkquist, A Chapelain, N Eggert, A Frankenthal, L Gibbons, S Kim, A Mikhailichenko, Y Orlov, N Rider, D Rubin, D Sweigart, D Allspach, E Barzi, B Casey, ME Convery, B Drendel, H Freidsam, C Johnstone, J Johnstone, B Kiburg, I Kourbanis, AL Lyon, KW Merritt, JP Morgan, H Nguyen, J-F Ostiguy, A Para, CC Polly, M Popovic, E Ramberg, M Rominsky, AK Soha, D Still, T Walton, C Yoshikawa, K Jungmann, CJG Onderwater, P Debevec, S Leo, K Pitts, C Schlesier, A Anastasi, D Babusci, G Corradi, D Hampai, A Palladino, G Venanzoni, S Dabagov, C Ferrari, A Fioretti, C Gabbanini, R Di Stefano, S Marignetti, M Iacovacci, S Mastroianni, G Di Sciascio, D Moricciani, G Cantatore, M Karuza, K Giovanetti, V Baranov, V Duginov, N Khomutov, V Krylov, N Kuchinskiy, V Volnykh, M Gaisser, S Haciomeroglu, Y Kim, S Lee, M Lee, YK Semertzidis, E Won, R Fatemi, W Gohn, T Gorringe, T Bowcock, J Carroll, B King, S Maxfield, A Smith, T Teubner, M Whitley, M Wormald, A Wolski, S Al-Kilani, R Chislett, M Lancaster, E Motuk, T Stuttard, M Warren, D Flay, D Kawall, Z Meadows, M Syphers, D Tarazona, T Chupp, A Tewlsey-Booth, B Quinn, M Eads, A Epps, G Luo, M McEvoy, N Pohlman, M Shenk, A de Gouvea, L Welty-Rieger, H Schellman, B Abi, F Azfar, S Henry, F Gray, C Fu, X Ji, L Li, H Yang, D Stockinger, D Cauz, G Pauletta, L Santi, S Baessler, E Frlez, D Pocanic, LP Alonzi, M Fertl, A Fienberg, N Froemming, A Garcia, DW Hertzog, P Kammel, J Kaspar, R Osofsky, M Smith, E Swanson, K Lynch
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