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  1. Artikel: Carbonaceous materials in cometary environments: the case of the 3-4 micrometers bands.

    Colangeli, L / Mennella, V / Bussoletti, E / Piacentino, G M

    Advances in space research : the official journal of the Committee on Space Research (COSPAR)

    2000  Band 12, Heft 4, Seite(n) 43–46

    Abstract: We present in this paper a simulation of cometary spectra between 3 and 4 micrometers performed by using the optical properties of various carbon-based materials measured at different temperatures in the range 300-520 K. In our computations we have used ... ...

    Abstract We present in this paper a simulation of cometary spectra between 3 and 4 micrometers performed by using the optical properties of various carbon-based materials measured at different temperatures in the range 300-520 K. In our computations we have used new laboratory data obtained for hydrogenated amorphous carbon (HAC) grains and three kinds of polycyclic aromatic hydrocarbons (PAHs). All these materials show significant features in the near IR region; however, only the synthetic spectra obtained from HAC grains show a satisfactory agreement with the profile of the cometary bands.
    Mesh-Begriff(e) Carbon/chemistry ; Chrysenes/analysis ; Exobiology ; Meteoroids ; Models, Chemical ; Polycyclic Aromatic Hydrocarbons/analysis ; Polycyclic Compounds/analysis ; Spectrophotometry, Infrared
    Chemische Substanzen Chrysenes ; Polycyclic Aromatic Hydrocarbons ; Polycyclic Compounds ; chrysene (084HCM49PT) ; Carbon (7440-44-0) ; coronene (7YY0X5XT1W)
    Sprache Englisch
    Erscheinungsdatum 2000-11-16
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 392339-3
    ISSN 0273-1177
    ISSN 0273-1177
    DOI 10.1016/0273-1177(92)90151-m
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm.

    Aguillard, D P / Albahri, T / Allspach, D / Anisenkov, A / Badgley, K / Baeßler, S / Bailey, I / Bailey, L / Baranov, V A / Barlas-Yucel, E / Barrett, T / Barzi, E / Bedeschi, F / Berz, M / Bhattacharya, M / Binney, H P / Bloom, P / Bono, J / Bottalico, E /
    Bowcock, T / Braun, S / Bressler, M / Cantatore, G / Carey, R M / Casey, B C K / Cauz, D / Chakraborty, R / Chapelain, A / Chappa, S / Charity, S / Chen, C / Cheng, M / Chislett, R / Chu, Z / Chupp, T E / Claessens, C / Convery, M E / Corrodi, S / Cotrozzi, L / Crnkovic, J D / Dabagov, S / Debevec, P T / Di Falco, S / Di Sciascio, G / Drendel, B / Driutti, A / Duginov, V N / Eads, M / Edmonds, A / Esquivel, J / Farooq, M / Fatemi, R / Ferrari, C / Fertl, M / Fienberg, A T / Fioretti, A / Flay, D / Foster, S B / Friedsam, H / Froemming, N S / Gabbanini, C / Gaines, I / Galati, M D / Ganguly, S / Garcia, A / George, J / Gibbons, L K / Gioiosa, A / Giovanetti, K L / Girotti, P / Gohn, W / Goodenough, L / Gorringe, T / Grange, J / Grant, S / Gray, F / Haciomeroglu, S / Halewood-Leagas, T / Hampai, D / Han, F / Hempstead, J / Hertzog, D W / Hesketh, G / Hess, E / Hibbert, A / Hodge, Z / Hong, K W / Hong, R / Hu, T / Hu, Y / Iacovacci, M / Incagli, M / Kammel, P / Kargiantoulakis, M / Karuza, M / Kaspar, J / Kawall, D / Kelton, L / Keshavarzi, A / Kessler, D S / Khaw, K S / Khechadoorian, Z / Khomutov, N V / Kiburg, B / Kiburg, M / Kim, O / Kinnaird, N / Kraegeloh, E / Krylov, V A / Kuchinskiy, N A / Labe, K R / LaBounty, J / Lancaster, M / Lee, S / Li, B / Li, D / Li, L / Logashenko, I / Lorente Campos, A / Lu, Z / Lucà, A / Lukicov, G / Lusiani, A / Lyon, A L / MacCoy, B / Madrak, R / Makino, K / Mastroianni, S / Miller, J P / Miozzi, S / Mitra, B / Morgan, J P / Morse, W M / Mott, J / Nath, A / Ng, J K / Nguyen, H / Oksuzian, Y / Omarov, Z / Osofsky, R / Park, S / Pauletta, G / Piacentino, G M / Pilato, R N / Pitts, K T / Plaster, B / Počanić, D / Pohlman, N / Polly, C C / Price, J / Quinn, B / Qureshi, M U H / Ramachandran, S / Ramberg, E / Reimann, R / Roberts, B L / Rubin, D L / Santi, L / Schlesier, C / Schreckenberger, A / Semertzidis, Y K / Shemyakin, D / Sorbara, M / Stöckinger, D / Stapleton, J / Still, D / Stoughton, C / Stratakis, D / Swanson, H E / Sweetmore, G / Sweigart, D A / Syphers, M J / Tarazona, D A / Teubner, T / Tewsley-Booth, A E / Tishchenko, V / Tran, N H / Turner, W / Valetov, E / Vasilkova, D / Venanzoni, G / Volnykh, V P / Walton, T / Weisskopf, A / Welty-Rieger, L / Winter, P / Wu, Y / Yu, B / Yucel, M / Zeng, Y / Zhang, C

    Physical review letters

    2023  Band 131, Heft 16, Seite(n) 161802

    Abstract: We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from the Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. We have analyzed more than 4 times the number of positrons from muon decay than in our ... ...

    Abstract We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from the Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. We have analyzed more than 4 times the number of positrons from muon decay than in our previous result from 2018 data. The systematic error is reduced by more than a factor of 2 due to better running conditions, a more stable beam, and improved knowledge of the magnetic field weighted by the muon distribution, ω[over ˜]_{p}^{'}, and of the anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From the ratio ω_{a}/ω[over ˜]_{p}^{'}, together with precisely determined external parameters, we determine a_{μ}=116 592 057(25)×10^{-11} (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain a_{μ}(FNAL)=116 592 055(24)×10^{-11} (0.20 ppm). The new experimental world average is a_{μ}(exp)=116 592 059(22)×10^{-11} (0.19 ppm), which represents a factor of 2 improvement in precision.
    Sprache Englisch
    Erscheinungsdatum 2023-11-05
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.131.161802
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; 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  Band 126, Heft 14, Seite(n) 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.
    Sprache Englisch
    Erscheinungsdatum 2021-04-23
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.126.141801
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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