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  1. Book ; Online: The Apollo ATCA Design for the CMS Track Finder and the Pixel Readout at the HL-LHC

    Albert, A. / Demiragli, Z. / Gastler, D. / Hahn, K. / Hazen, E. / Kotamnives, P. / Noorudhin, S. / Peck, A. / Rohlf, J. / Strohman, C. / Wittich, P. / Zou, R.

    2021  

    Abstract: The challenging conditions of the High-Luminosity LHC require tailored hardware designs for the trigger and data acquisition systems. The Apollo platform features a "Service Module" with a powerful system-on-module computer that provides standard ATCA ... ...

    Abstract The challenging conditions of the High-Luminosity LHC require tailored hardware designs for the trigger and data acquisition systems. The Apollo platform features a "Service Module" with a powerful system-on-module computer that provides standard ATCA communications and application-specific "Command Module"s with large FPGAs and high-speed optical fiber links. The CMS version of Apollo will be used for the track finder and the pixel readout. It features up to two large FPGAs and more than 100 optical links with speeds up to 25\,Gb/s. We study carefully the design and performance of the board by using customized firmware to test power consumption, heat dissipation, and optical link integrity. This paper presents the results of these performance tests, design updates, and future plans.

    Comment: Submitted to JINST Proceedings for TWEPP 2021
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 621
    Publishing date 2021-11-29
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm.

    Abi, B / Albahri, T / Al-Kilani, S / Allspach, D / Alonzi, L P / Anastasi, A / Anisenkov, A / Azfar, F / Badgley, K / Baeßler, S / Bailey, I / Baranov, V A / Barlas-Yucel, E / Barrett, T / Barzi, E / Basti, A / Bedeschi, F / Behnke, A / Berz, M /
    Bhattacharya, M / Binney, H P / Bjorkquist, R / Bloom, P / Bono, J / Bottalico, E / Bowcock, T / Boyden, D / Cantatore, G / Carey, R M / Carroll, J / Casey, B C K / Cauz, D / Ceravolo, S / Chakraborty, R / Chang, S P / Chapelain, A / Chappa, S / Charity, S / Chislett, R / Choi, J / Chu, Z / Chupp, T E / Convery, M E / Conway, A / Corradi, G / Corrodi, S / Cotrozzi, L / Crnkovic, J D / Dabagov, S / De Lurgio, P M / Debevec, P T / Di Falco, S / Di Meo, P / Di Sciascio, G / Di Stefano, R / Drendel, B / Driutti, A / Duginov, V N / Eads, M / Eggert, N / Epps, A / Esquivel, J / Farooq, M / Fatemi, R / Ferrari, C / Fertl, M / Fiedler, A / Fienberg, A T / Fioretti, A / Flay, D / Foster, S B / Friedsam, H / Frlež, E / Froemming, N S / Fry, J / Fu, C / Gabbanini, C / Galati, M D / Ganguly, S / Garcia, A / Gastler, D E / George, J / Gibbons, L K / Gioiosa, A / Giovanetti, K L / Girotti, P / Gohn, W / Gorringe, T / Grange, J / Grant, S / Gray, F / Haciomeroglu, S / Hahn, D / Halewood-Leagas, T / Hampai, D / Han, F / Hazen, E / Hempstead, J / Henry, S / Herrod, A T / Hertzog, D W / Hesketh, G / Hibbert, A / Hodge, Z / Holzbauer, J L / Hong, K W / Hong, R / Iacovacci, M / Incagli, M / Johnstone, C / Johnstone, J A / Kammel, P / Kargiantoulakis, M / Karuza, M / Kaspar, J / Kawall, D / Kelton, L / Keshavarzi, A / Kessler, D / Khaw, K S / Khechadoorian, Z / Khomutov, N V / Kiburg, B / Kiburg, M / Kim, O / Kim, S C / Kim, Y I / King, B / Kinnaird, N / Korostelev, M / Kourbanis, I / Kraegeloh, E / Krylov, V A / Kuchibhotla, A / Kuchinskiy, N A / Labe, K R / LaBounty, J / Lancaster, M / Lee, M J / Lee, S / Leo, S / Li, B / Li, D / Li, L / Logashenko, I / Lorente Campos, A / Lucà, A / Lukicov, G / Luo, G / Lusiani, A / Lyon, A L / MacCoy, B / Madrak, R / Makino, K / Marignetti, F / Mastroianni, S / Maxfield, S / McEvoy, M / Merritt, W / Mikhailichenko, A A / Miller, J P / Miozzi, S / Morgan, J P / Morse, W M / Mott, J / Motuk, E / Nath, A / Newton, D / Nguyen, H / Oberling, M / Osofsky, R / Ostiguy, J-F / Park, S / Pauletta, G / Piacentino, G M / Pilato, R N / Pitts, K T / Plaster, B / Počanić, D / Pohlman, N / Polly, C C / Popovic, M / Price, J / Quinn, B / Raha, N / Ramachandran, S / Ramberg, E / Rider, N T / Ritchie, J L / Roberts, B L / Rubin, D L / Santi, L / Sathyan, D / Schellman, H / Schlesier, C / Schreckenberger, A / Semertzidis, Y K / Shatunov, Y M / Shemyakin, D / Shenk, M / Sim, D / Smith, M W / Smith, A / Soha, A K / Sorbara, M / Stöckinger, D / Stapleton, J / Still, D / Stoughton, C / Stratakis, D / Strohman, C / Stuttard, T / Swanson, H E / Sweetmore, G / Sweigart, D A / Syphers, M J / Tarazona, D A / Teubner, T / Tewsley-Booth, A E / Thomson, K / Tishchenko, V / Tran, N H / Turner, W / Valetov, E / Vasilkova, D / Venanzoni, G / Volnykh, V P / Walton, T / Warren, M / Weisskopf, A / Welty-Rieger, L / Whitley, M / Winter, P / Wolski, A / Wormald, M / Wu, W / Yoshikawa, C

    Physical review letters

    2021  Volume 126, Issue 14, Page(s) 141801

    Abstract: We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2. The anomaly is determined from the precision measurements of two angular frequencies. ... ...

    Abstract We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-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 ω_{a} 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[over ˜]_{p}^{'} in a spherical water sample at 34.7 °C. The ratio ω_{a}/ω[over ˜]_{p}^{'}, together with known fundamental constants, determines a_{μ}(FNAL)=116 592 040(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 a_{μ}(Exp)=116 592 061(41)×10^{-11} (0.35 ppm) increases the tension between experiment and theory to 4.2 standard deviations.
    Language English
    Publishing date 2021-04-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.126.141801
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