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Proper motions of the satellites of M31

Monthly Notices of the Royal Astronomical Society, Volume 488, Issue 3, September 2019, Pages 3231–3237

Authors:

Ben Hodkinson, Jakub Scholtz

Abstract:

We predict the range of proper motions of 19 satellite galaxies of M31 that would rotationally stabilize the M31 plane of satellites consisting of 15–20 members as identified by Ibata et al. Our prediction is based purely on the current positions and line-of-sight velocities of these satellites and the assumption that the plane is not a transient feature. These predictions are therefore independent of the current debate about the formation history of this plane. We further comment on the feasibility of measuring these proper motions with future observations by the THEIA satellite mission as well as the currently planned observations by HST and JWST.
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Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using sqrt s = 7 TeV pp collisions with the ATLAS detector

The Journal of High Energy Physics 2011:11

Authors:

AJ Barr, more than 10, The ATLAS Collaboration
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Sensor Compendium

Office of Scientific and Technical Information (OSTI)

Authors:

M Artuso, et al.
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Technical design of the phase I Mu3e experiment

Authors:

K Arndt, H Augustin, P Baesso, N Berger, F Berg, C Betancourt, D Bortoletto, A Bravar, K Briggl, D vom Bruch, A Buonaura, F Cadoux, C Chavez Barajas, H Chen, K Clark, P Cooke, S Corrodi, A Damyanova, Y Demets, S Dittmeier, P Eckert, F Ehrler, D Fahrni, L Gerritzen, J Goldstein, D Gottschalk, C Grab, R Gredig, A Groves, J Hammerich, U Hartenstein, U Hartmann, H Hayward, A Herkert, G Hesketh, S Hetzel, M Hildebrandt, Z Hodge, A Hofer, Qh Huang, S Hughes, L Huth, Dm Immig, T Jones, M Jones, H-C Kästli, M Köppel, P-R Kettle, M Kiehn, S Kilani

Abstract:

The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \rightarrow eee$ at branching fractions above $10^{-16}$. A first phase of the experiment using an existing beamline at the Paul Scherrer Institute (PSI) is designed to reach a single event sensitivity of $2\cdot 10^{-15}$. We present an overview of all aspects of the technical design and expected performance of the phase~I Mu3e detector. The high rate of up to $10^{8}$ muon decays per second and the low momenta of the decay electrons and positrons pose a unique set of challenges, which we tackle using an ultra thin tracking detector based on high-voltage monolithic active pixel sensors combined with scintillating fibres and tiles for precise timing measurements.
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Technical design of the phase I Mu3e experiment

Authors:

K Arndt, H Augustin, P Baesso, N Berger, F Berg, C Betancourt, D Bortoletto, A Bravar, K Briggl, D vom Bruch, A Buonaura, F Cadoux, C Chavez Barajas, H Chen, K Clark, P Cooke, S Corrodi, A Damyanova, Y Demets, S Dittmeier, P Eckert, F Ehrler, D Fahrni, L Gerritzen, J Goldstein, D Gottschalk, C Grab, R Gredig, A Groves, J Hammerich, U Hartenstein, U Hartmann, H Hayward, A Herkert, G Hesketh, S Hetzel, M Hildebrandt, Z Hodge, A Hofer, Qh Huang, S Hughes, L Huth, Dm Immig, T Jones, M Jones, H-C Kästli, M Köppel, P-R Kettle, M Kiehn, S Kilani

Abstract:

The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \rightarrow eee$ at branching fractions above $10^{-16}$. A first phase of the experiment using an existing beamline at the Paul Scherrer Institute (PSI) is designed to reach a single event sensitivity of $2\cdot 10^{-15}$. We present an overview of all aspects of the technical design and expected performance of the phase~I Mu3e detector. The high rate of up to $10^{8}$ muon decays per second and the low momenta of the decay electrons and positrons pose a unique set of challenges, which we tackle using an ultra thin tracking detector based on high-voltage monolithic active pixel sensors combined with scintillating fibres and tiles for precise timing measurements.
More details from the publisher