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1. An Initial Exploration into Job Satisfaction Among Long-Term Care Administrators and State Tested Nursing Assistants in Ohio

Author

Rachel E. Ward BS, Shannon Dudash PT, DPT, Daniel J. Van Dussen MA, PhD, and Macy S. Debevec PT, DPT

Subjects
Geriatrics, RC952-954.6
Abstract

This pilot study examines Ohio’s licensed nursing home administrators and state tested nursing assistant’s perspectives about job satisfaction, future career and employment plans, potential beneficial changes to their organizations, and their thoughts on reducing turnover rates in their field. Ohio Board of Executives of Long-Term Services and Supports provided their contact list of all 1,969 licensed nursing home administrators in Ohio in the fall of 2023. Two surveys were created for licensed nursing home administrators and state tested nursing assistants. Results were analyzed for themes within the open-ended responses; 28 surveys were received from licensed nursing home administrators and 17 surveys were received from state tested nursing assistants. Residents and their families are among the top reasons for job satisfaction, many employees face symptoms of burnout, and wages are a concern among both state tested nursing assistants and licensed nursing home administrators. Future career plans differed between the two professions and had distinct driving factors. A discussion of licensed nursing home administrators’ opinions on improving retention and turnover rates should include more accountability, personal responsibility, and adding opportunities for professional growth and development.

Published
2024
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2. Mu2e Conceptual Design Report

Author

Project, The Mu2e, Collaboration, Abrams, RJ, Alezander, D, Ambrosio, G, Andreev, N, Ankenbrandt, CM, Asner, DM, Arnold, D, Artikov, A, Barnes, E, Bartoszek, L, Bernstein, RH, Biery, K, Biliyar, V, Bonicalzi, R, Bossert, R, Bowden, M, Brandt, J, Brown, DN, Budagov, J, Buehler, M, Burov, A, Carcagno, R, Carey, RM, Carosi, R, Cascella, M, Cauz, D, Cervelli, F, Chandra, A, Chang, JK, Cheng, C, Ciambrone, P, Coleman, RN, Cooper, M, Corcoran, MC, Cordelli, M, Davydov, Y, Gouvea, AL de, Lorenzis, L De, Debevec, PT, DeJongh, F, Densham, C, Deuerling, G, Dey, J, Falco, S Di, Dixon, S, Djilkibaev, R, Drendel, B, Dukes, EC, Dychkant, A, Echenard, B, Ehrlich, R, Evans, N, Evbota, D, Fang, I, Fast, JE, Feher, S, Fischler, M, Frank, M, Frlez, E, Fung, SS, Gallo, G, Galucci, G, Gaponenko, A, Genser, K, Giovannella, S, Glagolev, V, Glenzinski, D, Gnani, D, Goadhouse, S, Gollin, GD, Grace, C, Grancagnolo, F, Group, C, Hanson, J, Hanson, S, Happacher, F, Heckmaier, E, Hedin, D, Hertzog, DW, Hirosky, R, Hitlin, DG, Ho, E, Huang, X, Huedem, E, Hung, PQ, Hungerford, EV, Ito, T, Jaskierny, W, Jedziniak, R, Johnson, RP, Johnstone, C, Johnstone, JA, Kahn, SA, Kammel, P, Kang, TI, Kashikhin, VS, Kashikhin, VV, and Kasper, P

Subjects
physics.ins-det, hep-ex, physics.acc-ph
Abstract

Mu2e at Fermilab will search for charged lepton flavor violation via thecoherent conversion process mu- N --> e- N with a sensitivity approximatelyfour orders of magnitude better than the current world's best limits for thisprocess. The experiment's sensitivity offers discovery potential over a widearray of new physics models and probes mass scales well beyond the reach of theLHC. We describe herein the conceptual design of the proposed Mu2e experiment.This document was created in partial fulfillment of the requirements necessaryto obtain DOE CD-1 approval, which was granted July 11, 2012.

Published
2012

3. New Results from the Muon g ‐ 2 Experiment

Author

Sichtermann, EP, Bennett, GW, Bousquet, B, Brown, HN, Bunce, G, Carey, RM, Cushman, P, Danby, GT, Debevec, PT, Deile, M, Deng, H, Deninger, W, Dhawan, SK, Druzhinin, VP, Duong, L, Efstathiadis, E, Farley, FJM, Fedotovich, GV, Giron, S, Gray, FE, Grigoriev, D, Grosse‐Perdekamp, M, Grossmann, A, Hare, MF, Hertzog, DW, Huang, X, Hughes, VW, Iwasaki, M, Jungmann, K, Kawall, D, Khazin, BI, Kindem, J, Krienen, F, Kronkvist, I, Lam, A, Larsen, R, Lee, YY, Logashenko, I, McNabb, R, Meng, W, Mi, J, Miller, JP, Morse, WM, Nikas, D, Onderwater, CJG, Orlov, Y, Özben, CS, Paley, JM, Peng, Q, Polly, CC, Pretz, J, Prigl, R, Putlitz, G zu, Qian, T, Redin, SI, Rind, O, Roberts, BL, Ryskulov, N, Shagin, P, Semertzidis, YK, Shatunov, Yu M, Solodov, E, Sossong, M, Steinmetz, A, Sulak, LR, Trofimov, A, Urner, D, von Walter, P, Warburton, D, and Yamamoto, A

Subjects
hep-ex
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is the first cryogenic experiment searching for neutrinoless double-beta (0vßß) decay that has been able to reach the one-ton scale. The detector, located at the Laboratori Nazionali del Gran Sasso in Italy, consists of an array of 988 TeO2 crystals arranged in a compact cylindrical structure of 19 towers. Following the completion of the detector construction in August 2016, CUORE began its first physics data run in 2017 at a base temperature of about 10 mK. Following multiple optimization campaigns in 2018, CUORE is currently in stable operating mode. In 2019, CUORE released its 2nd result of the search for 0vßß with a TeO2 exposure of 372.5 kg·yr and a median exclusion sensitivity to a 130Te 0vßß decay half-life of 1.7 · 1025 yr. We find no evidence for 0vßß decay and set a 90% C.I. (credibility interval) Bayesian lower limit of 3.2 · 1025 yr on the 130Te 0vßß decay half-life. In this work, we present the current status of CUORE's search for 0vßß, as well as review the detector performance. Finally, we give an update of the CUORE background model and the measurement of the 130Te two neutrino double-beta (2vßß) decay half-life.

Published
2003

4. Publisher’s Note: Measurement of the positive muon anomalous magnetic moment to 0.7 ppm (vol 89, art no 101804, 2002)

Author

Bennett, GW, Bousquet, B, Brown, HN, Bunce, G, Carey, RM, Cushman, P, Danby, GT, Debevec, PT, Deile, M, Deng, H, Deninger, W, Dhawan, SK, Druzhinin, VP, Duong, L, Efstathiadis, E, Farley, FJM, Fedotovich, GV, Giron, S, Gray, FE, Grigoriev, D, Grosse-Perdekamp, M, Grossmann, A, Hare, MF, Hertzog, DW, Huang, X, Hughes, VW, Iwasaski, M, Jungmann, K, Kawall, D, Khazin, BI, Kindem, J, Krienen, F, Kronkvist, I., Lam, A, Larsen, R, Lee, YY, Logashenko, I., McNabb, R, Meng, W, Mi, J, Miller, JP, Morse, WM, Nikas, D, Onderwater, CJG, Orlov, Y, Ozben, CS, Paley, JM, Peng, Q, Polly, CC, and Pretz, J

Published
2002

5. New measurement of the anomalous magnetic moment of the positive muon

Author

Carey, RM, Earle, W, Efstathiadis, E, Hare, MF, Hazen, ES, Hughes, BJ, Krienen, F, Miller, JP, Monich, Ouyang, J, Rind, O, Roberts, BL, Sulak, LR, Trofimov, A, Varner, G, Worstell, WA, Benedict, E, Logashenko, I., Benante, J, Brown, HN, Bunce, G, Cullen, J, Danby, GT, Geller, J, Hseuh, H, Jackson, JW, Jia, L, Kochis, S, Larsen, R, Lee, YY, Mapes, M, Meng, W, Morse, WM, Pai, C, Pearson, C, Polk, T., Prigl, R, Rankowitz, S, Sandberg, J, Semertzidis, YK, Shutt, R, Snydstrup, L, Soukas, A, Stillman, A, Tallerico, T, Tanaka, M, Toldo, F, von Lintig, D, Warburton, D, Woodle, K, Chertovskikh, A, Druzhinin, VP, Fedotovich, GV, Grigorev, DN, Golubev, VB, Khazin, BI, Maksimov, A, Merzliakov, Y, Ryskulov, N, Serednyakov, S, Shatunov, YM, Solodov, E, Orlov, Y, Winn, D, Grossmann, A, Gerhaeuser, J, Jungmann, K, von Walter, P, zu Putlitz, G, Bunker, B, Deninger, W, Debevec, PT, Hertzog, DW, Jones, TD, Polly, C, Sedykh, S, Urner, D, Haeberlen, U, Endo, K, Hirabayashi, H, Kurokawa, S, Yamamoto, A, Green, MA, Cushman, P, Kindem, J, Duong, L, Giron, S, McNabb, R, Miller, D, Zimmerman, D, Mizumachi, Y, Iwasaki, M, Ahn, HE, Deng, H, Dhawan, SK, Disco, A, Farley, FJM, Fei, Erkang, Grosse-Perdekamp, M, Hughes, VW, Kawall, D, Redin, SI, Steinmetz, A, and Precision Frontier

Subjects
G-2, Physics::Accelerator Physics, NMR
Abstract

The muon anomalous magnetic moment has been measured in a new experiment at Brookhaven. Polarized muons were stored in a superferric ring, and the angular frequency difference, omega(a), between the spin precession and orbital frequencies was determined by measuring the time distribution of high-energy decay positrons. The ratio R of omega(a) to the Larmor precession frequency of free protons, omega(p), in the storage-ring magnetic field was measured. We find R = 3.707 220(48) X 10(-3). With mu(mu)/mu(p) = 3.183 345 47(47) this gives a(mu+) = 1 165 925(15) X 10(-9) (+/-13 ppm), in good agreement with the previous CERN measurements for mu(+) and mu(-) and of approximately the same precision.

Published
1999

6. OBSERVATION OF PHI-PHI PRODUCTION IN THE REACTION (P)OVER-BAR-P-]4K(+/-) AT 1.4 GEV/C INCIDENT (P)OVER-BAR MOMENTUM

Author

BERTOLOTTO, L, BUZZO, A, DEBEVEC, PT, DRIJARD, D, EASO, S, EISENSTEIN, RA, EYRICH, W, FEARNLEY, T, FISCHER, H, FRANZ, J, GEYER, R, HAMANN, NH, HARRIS, PG, HERTZOG, DW, HUGHES, SA, JOHANSSON, A, JOHANSSON, TORD, JONES, RT, KILIAN, K, KIRSEBOM, K, KLETT, A, KORSMO, H, LOVETERE, M, BERTOLOTTO, L, BUZZO, A, DEBEVEC, PT, DRIJARD, D, EASO, S, EISENSTEIN, RA, EYRICH, W, FEARNLEY, T, FISCHER, H, FRANZ, J, GEYER, R, HAMANN, NH, HARRIS, PG, HERTZOG, DW, HUGHES, SA, JOHANSSON, A, JOHANSSON, TORD, JONES, RT, KILIAN, K, KIRSEBOM, K, KLETT, A, KORSMO, H, and LOVETERE, M

Abstract

The JETSET (PS202) experiment at CERN-LEAR searches for hadronic resonances by means of in-flight antiproton-proton annihilations in the reaction ($) over bar pp --> phi phi. In order to obtain sufficient luminosity and good final-state mass resolution, t, Addresses: UNIV BARI, BARI, ITALY. INFN, BARI, ITALY. UNIV ERLANGEN NURNBERG, W-8520 ERLANGEN, GERMANY. UNIV FREIBURG, FREIBURG, GERMANY. UNIV GENOA, GENOA, ITALY. INFN, GENOA, ITALY. UNIV ILLINOIS, URBANA, IL 61801. KFA JULICH, FORSCHUNGSZENTRUM, INST KE

Published
1995

7. RESULTS FROM (P)OVER-BAR-P-]PHI-PHI

Author

BERTOLOTTO, L, BUZZO, A, DEBEVEC, PT, DRIJARD, D, EASO, S, EISENSTEIN, RA, EYRICH, W, FERROLUZZI, M, FRANZ, J, GEYER, R, HAMANN, N, HARRIS, P, HERTZOG, DW, HUGHES, SA, JOHANSSON, Tord, JONES, R, KILIAN, K, KIRSEBOM, K, KLETT, A, KORSMO, H, LOVETERE, M, MACRI, M, MARINELLI, M, M, BERTOLOTTO, L, BUZZO, A, DEBEVEC, PT, DRIJARD, D, EASO, S, EISENSTEIN, RA, EYRICH, W, FERROLUZZI, M, FRANZ, J, GEYER, R, HAMANN, N, HARRIS, P, HERTZOG, DW, HUGHES, SA, JOHANSSON, Tord, JONES, R, KILIAN, K, KIRSEBOM, K, KLETT, A, KORSMO, H, LOVETERE, M, MACRI, M, MARINELLI, M, and M

Abstract

The reaction ($) over bar pp --> phi phi is investigated in the JETSET (PS202) experiment using an internal target in LEAR. Data have been analysed at a variety of beam momenta from 1.2 GeV/c to 2.0 GeV/c, corresponding to centre-of-mass energies between, Addresses: BERTOLOTTO L, INFN, GENOA, ITALY. UNIV GENOA, GENOA, ITALY. INFN, SEZ BARI, BARI, ITALY. UNIV BARI, BARI, ITALY. UNIV ERLANGEN NURNBERG, INST PHYS, W-8520 ERLANGEN, GERMANY. CERN, CH-1211 GENEVA, SWITZERLAND. UNIV ILLINOIS, URBANA, IL 61801. KF

Published
1994

8. Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm.

Author

Aguillard DP, Albahri T, Allspach D, Anisenkov A, Badgley K, Baeßler S, Bailey I, Bailey L, Baranov VA, Barlas-Yucel E, Barrett T, Barzi E, Bedeschi F, Berz M, Bhattacharya M, Binney HP, Bloom P, Bono J, Bottalico E, Bowcock T, Braun S, Bressler M, Cantatore G, Carey RM, Casey BCK, Cauz D, Chakraborty R, Chapelain A, Chappa S, Charity S, Chen C, Cheng M, Chislett R, Chu Z, Chupp TE, Claessens C, Convery ME, Corrodi S, Cotrozzi L, Crnkovic JD, Dabagov S, Debevec PT, Di Falco S, Di Sciascio G, Drendel B, Driutti A, Duginov VN, Eads M, Edmonds A, Esquivel J, Farooq M, Fatemi R, Ferrari C, Fertl M, Fienberg AT, Fioretti A, Flay D, Foster SB, Friedsam H, Froemming NS, Gabbanini C, Gaines I, Galati MD, Ganguly S, Garcia A, George J, Gibbons LK, Gioiosa A, Giovanetti KL, 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 DW, Hesketh G, Hess E, Hibbert A, Hodge Z, Hong KW, 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 DS, Khaw KS, Khechadoorian Z, Khomutov NV, Kiburg B, Kiburg M, Kim O, Kinnaird N, Kraegeloh E, Krylov VA, Kuchinskiy NA, Labe KR, 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 AL, MacCoy B, Madrak R, Makino K, Mastroianni S, Miller JP, Miozzi S, Mitra B, Morgan JP, Morse WM, Mott J, Nath A, Ng JK, Nguyen H, Oksuzian Y, Omarov Z, Osofsky R, Park S, Pauletta G, Piacentino GM, Pilato RN, Pitts KT, Plaster B, Počanić D, Pohlman N, Polly CC, Price J, Quinn B, Qureshi MUH, Ramachandran S, Ramberg E, Reimann R, Roberts BL, Rubin DL, Santi L, Schlesier C, Schreckenberger A, Semertzidis YK, Shemyakin D, Sorbara M, Stöckinger D, Stapleton J, Still D, Stoughton C, Stratakis D, Swanson HE, Sweetmore G, Sweigart DA, Syphers MJ, Tarazona DA, Teubner T, Tewsley-Booth AE, Tishchenko V, Tran NH, Turner W, Valetov E, Vasilkova D, Venanzoni G, Volnykh VP, Walton T, Weisskopf A, Welty-Rieger L, Winter P, Wu Y, Yu B, Yucel M, Zeng Y, and Zhang C

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.

Published
2023
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9. Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm.

Author

Abi B, Albahri T, Al-Kilani S, Allspach D, Alonzi LP, Anastasi A, Anisenkov A, Azfar F, Badgley K, Baeßler S, Bailey I, Baranov VA, Barlas-Yucel E, Barrett T, Barzi E, Basti A, Bedeschi F, Behnke A, Berz M, Bhattacharya M, Binney HP, Bjorkquist R, Bloom P, Bono J, Bottalico E, Bowcock T, Boyden D, Cantatore G, Carey RM, Carroll J, Casey BCK, Cauz D, Ceravolo S, Chakraborty R, Chang SP, Chapelain A, Chappa S, Charity S, Chislett R, Choi J, Chu Z, Chupp TE, Convery ME, Conway A, Corradi G, Corrodi S, Cotrozzi L, Crnkovic JD, Dabagov S, De Lurgio PM, Debevec PT, Di Falco S, Di Meo P, Di Sciascio G, Di Stefano R, Drendel B, Driutti A, Duginov VN, Eads M, Eggert N, Epps A, Esquivel J, Farooq M, Fatemi R, Ferrari C, Fertl M, Fiedler A, Fienberg AT, Fioretti A, Flay D, Foster SB, Friedsam H, Frlež E, Froemming NS, Fry J, Fu C, Gabbanini C, Galati MD, Ganguly S, Garcia A, Gastler DE, George J, Gibbons LK, Gioiosa A, Giovanetti KL, 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 AT, Hertzog DW, Hesketh G, Hibbert A, Hodge Z, Holzbauer JL, Hong KW, Hong R, Iacovacci M, Incagli M, Johnstone C, Johnstone JA, Kammel P, Kargiantoulakis M, Karuza M, Kaspar J, Kawall D, Kelton L, Keshavarzi A, Kessler D, Khaw KS, Khechadoorian Z, Khomutov NV, Kiburg B, Kiburg M, Kim O, Kim SC, Kim YI, King B, Kinnaird N, Korostelev M, Kourbanis I, Kraegeloh E, Krylov VA, Kuchibhotla A, Kuchinskiy NA, Labe KR, LaBounty J, Lancaster M, Lee MJ, Lee S, Leo S, Li B, Li D, Li L, Logashenko I, Lorente Campos A, Lucà A, Lukicov G, Luo G, Lusiani A, Lyon AL, MacCoy B, Madrak R, Makino K, Marignetti F, Mastroianni S, Maxfield S, McEvoy M, Merritt W, Mikhailichenko AA, Miller JP, Miozzi S, Morgan JP, Morse WM, Mott J, Motuk E, Nath A, Newton D, Nguyen H, Oberling M, Osofsky R, Ostiguy JF, Park S, Pauletta G, Piacentino GM, Pilato RN, Pitts KT, Plaster B, Počanić D, Pohlman N, Polly CC, Popovic M, Price J, Quinn B, Raha N, Ramachandran S, Ramberg E, Rider NT, Ritchie JL, Roberts BL, Rubin DL, Santi L, Sathyan D, Schellman H, Schlesier C, Schreckenberger A, Semertzidis YK, Shatunov YM, Shemyakin D, Shenk M, Sim D, Smith MW, Smith A, Soha AK, Sorbara M, Stöckinger D, Stapleton J, Still D, Stoughton C, Stratakis D, Strohman C, Stuttard T, Swanson HE, Sweetmore G, Sweigart DA, Syphers MJ, Tarazona DA, Teubner T, Tewsley-Booth AE, Thomson K, Tishchenko V, Tran NH, Turner W, Valetov E, Vasilkova D, Venanzoni G, Volnykh VP, Walton T, Warren M, Weisskopf A, Welty-Rieger L, Whitley M, Winter P, Wolski A, Wormald M, Wu W, and Yoshikawa C

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.

Published
2021
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10. Measurement of the positive muon lifetime and determination of the Fermi constant to part-per-million precision.

Author

Webber DM, Tishchenko V, Peng Q, Battu S, Carey RM, Chitwood DB, Crnkovic J, Debevec PT, Dhamija S, Earle W, Gafarov A, Giovanetti K, Gorringe TP, Gray FE, Hartwig Z, Hertzog DW, Johnson B, Kammel P, Kiburg B, Kizilgul S, Kunkle J, Lauss B, Logashenko I, Lynch KR, McNabb R, Miller JP, Mulhauser F, Onderwater CJ, Phillips J, Rath S, Roberts BL, Winter P, and Wolfe B

Abstract

We report a measurement of the positive muon lifetime to a precision of 1.0 ppm; it is the most precise particle lifetime ever measured. The experiment used a time-structured, low-energy muon beam and a segmented plastic scintillator array to record more than 2×10(12) decays. Two different stopping target configurations were employed in independent data-taking periods. The combined results give τ(μ(+)) (MuLan)=2 196 980.3(2.2)  ps, more than 15 times as precise as any previous experiment. The muon lifetime gives the most precise value for the Fermi constant: G(F) (MuLan)=1.166 378 8(7)×10(-5)  GeV(-2) (0.6 ppm). It is also used to extract the μ(-)p singlet capture rate, which determines the proton's weak induced pseudoscalar coupling g(P).

Published
2011
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11. Search for Lorentz and CPT violation effects in Muon spin precession.

Author

Bennett GW, Bousquet B, Brown HN, Bunce G, Carey RM, Cushman P, Danby GT, Debevec PT, Deile M, Deng H, Deninger W, Dhawan SK, Druzhinin VP, Duong L, Efstathiadis E, Farley FJ, Fedotovich GV, Giron S, Gray FE, Grigoriev D, Grosse-Perdekamp M, Grossmann A, Hare MF, Hertzog DW, Huang X, Hughes VW, Iwasaki M, Jungmann K, Kawall D, Kawamura M, Khazin BI, Kindem J, Krienen F, Kronkvist I, Lam A, Larsen R, Lee YY, Logashenko I, McNabb R, Meng W, Mi J, Miller JP, Mizumachi Y, Morse WM, Nikas D, Onderwater CJ, Orlov Y, Ozben CS, Paley JM, Peng Q, Polly CC, Pretz J, Prigl R, zu Putlitz G, Qian T, Redin SI, Rind O, Roberts BL, Ryskulov N, Sedykh S, Semertzidis YK, Shagin P, Shatunov YM, Sichtermann EP, Solodov E, Sossong M, Steinmetz A, Sulak LR, Timmermans C, Trofimov A, Urner D, von Walter P, Warburton D, Winn D, Yamamoto A, and Zimmerman D

Abstract

The spin precession frequency of muons stored in the (g-2) storage ring has been analyzed for evidence of Lorentz and CPT violation. Two Lorentz and CPT violation signatures were searched for a nonzero delta omega a(=omega a mu+ - omega a mu-) and a sidereal variation of omega a mu+/-). No significant effect is found, and the following limits on the standard-model extension parameters are obtained: bZ = -(1.0+/-1.1) x 10(-23) GeV; (m mu dZ0 + HXY)=(1.8+/-6.0) x 10(-23) GeV; and the 95% confidence level limits b perpendicular mu+ <1.4 x 10(-24) GeV and b perpendicular mu- <2.6 x 10(-24) GeV.

Published
2008
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12. Improved measurement of the positive-muon lifetime and determination of the Fermi constant.

Author

Chitwood DB, Banks TI, Barnes MJ, Battu S, Carey RM, Cheekatmalla S, Clayton SM, Crnkovic J, Crowe KM, Debevec PT, Dhamija S, Earle W, Gafarov A, Giovanetti K, Gorringe TP, Gray FE, Hance M, Hertzog DW, Hare MF, Kammel P, Kiburg B, Kunkle J, Lauss B, Logashenko I, Lynch KR, McNabb R, Miller JP, Mulhauser F, Onderwater CJ, Ozben CS, Peng Q, Polly CC, Rath S, Roberts BL, Tishchenko V, Wait GD, Wasserman J, Webber DM, Winter P, and Zołnierczuk PA

Abstract

The mean life of the positive muon has been measured to a precision of 11 ppm using a low-energy, pulsed muon beam stopped in a ferromagnetic target, which was surrounded by a scintillator detector array. The result, tau(micro)=2.197 013(24) micros, is in excellent agreement with the previous world average. The new world average tau(micro)=2.197 019(21) micros determines the Fermi constant G(F)=1.166 371(6)x10(-5) GeV-2 (5 ppm). Additionally, the precision measurement of the positive-muon lifetime is needed to determine the nucleon pseudoscalar coupling g(P).

Published
2007
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13. Measurement of the negative muon anomalous magnetic moment to 0.7 ppm.

Author

Bennett GW, Bousquet B, Brown HN, Bunce G, Carey RM, Cushman P, Danby GT, Debevec PT, Deile M, Deng H, Dhawan SK, Druzhinin VP, Duong L, Farley FJ, Fedotovich GV, Gray FE, Grigoriev D, Grosse-Perdekamp M, Grossmann A, Hare MF, Hertzog DW, Huang X, Hughes VW, Iwasaki M, Jungmann K, Kawall D, Khazin BI, Krienen F, Kronkvist I, Lam A, Larsen R, Lee YY, Logashenko I, McNabb R, Meng W, Miller JP, Morse WM, Nikas D, Onderwater CJ, Orlov Y, Ozben CS, Paley JM, Peng Q, Polly CC, Pretz J, Prigl R, Zu Putlitz G, Qian T, Redin SI, Rind O, Roberts BL, Ryskulov N, Semertzidis YK, Shagin P, Shatunov YM, Sichtermann EP, Solodov E, Sossong M, Sulak LR, Trofimov A, von Walter P, and Yamamoto A

Abstract

The anomalous magnetic moment of the negative muon has been measured to a precision of 0.7 ppm (ppm) at the Brookhaven Alternating Gradient Synchrotron. This result is based on data collected in 2001, and is over an order of magnitude more precise than the previous measurement for the negative muon. The result a(mu(-))=11 659 214(8)(3) x 10(-10) (0.7 ppm), where the first uncertainty is statistical and the second is systematic, is consistent with previous measurements of the anomaly for the positive and the negative muon. The average of the measurements of the muon anomaly is a(mu)(exp)=11 659 208(6) x 10(-10) (0.5 ppm).

Published
2004
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14. Measurement of the positive muon anomalous magnetic moment to 0.7 ppm.

Author

Bennett GW, Bousquet B, Brown HN, Bunce G, Carey RM, Cushman P, Danby GT, Debevec PT, Deile M, Deng H, Deninger W, Dhawan SK, Druzhinin VP, Duong L, Efstathiadis E, Farley FJ, Fedotovich GV, Giron S, Gray FE, Grigoriev D, Grosse-Perdekamp M, Grossmann A, Hare MF, Hertzog DW, Huang X, Hughes VW, Iwasaki M, Jungmann K, Kawall D, Khazin BI, Kindem J, Krienen F, Kronkvist I, Lam A, Larsen R, Lee YY, Logashenko I, McNabb R, Meng W, Mi J, Miller JP, Morse WM, Nikas D, Onderwater CJ, Orlov Y, Ozben CS, Paley JM, Peng Q, Polly CC, Pretz J, Prigl R, Zu Putlitz G, Qian T, Redin SI, Rind O, Roberts BL, Ryskulov N, Shagin P, Semertzidis YK, Shatunov YM, Sichtermann EP, Solodov E, Sossong M, Steinmetz A, Sulak LR, Trofimov A, Urner D, Von Walter P, Warburton D, and Yamamoto A

Abstract

A higher precision measurement of the anomalous g value, a(mu)=(g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron, based on data collected in the year 2000. The result a(mu(+))=11 659 204(7)(5)x10(-10) (0.7 ppm) is in good agreement with previous measurements and has an error about one-half that of the combined previous data. The present world average experimental value is a(mu)(expt)=11 659 203(8)x10(-10) (0.7 ppm).

Published
2002
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15. Precise measurement of the positive muon anomalous magnetic moment.

Author

Brown HN, Bunce G, Carey RM, Cushman P, Danby GT, Debevec PT, Deile M, Deng H, Deninger W, Dhawan SK, Druzhinin VP, Duong L, Efstathiadis E, Farley FJ, Fedotovich GV, Giron S, Gray F, Grigoriev D, Grosse-Perdekamp M, Grossmann A, Hare MF, Hertzog DW, Hughes VW, Iwasaki M, Jungmann K, Kawall D, Kawamura M, Khazin BI, Kindem J, Krienen F, Kronkvist I, Larsen R, Lee YY, Logashenko I, McNabb R, Meng W, Mi J, Miller JP, Morse WM, Nikas D, Onderwater CJ, Orlov Y, Ozben CS, Paley JM, Polly C, Pretz J, Prigl R, zu Putlitz G, Redin SI, Rind O, Roberts BL, Ryskulov N, Sedykh S, Semertzidis YK, Shatunov YM, Sichtermann EP, Solodov E, Sossong M, Steinmetz A, Sulak LR, Timmermans C, Trofimov A, Urner D, von Walter P, Warburton D, Winn D, Yamamoto A, and Zimmerman D

Abstract

A precise measurement of the anomalous g value, a(mu) = (g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron. The result a(mu+) = 11 659 202(14) (6) x 10(-10) (1.3 ppm) is in good agreement with previous measurements and has an error one third that of the combined previous data. The current theoretical value from the standard model is a(mu)(SM) = 11 659 159.6(6.7) x 10(-10) (0.57 ppm) and a(mu)(exp) - a(mu)(SM) = 43(16) x 10(-10) in which a(mu)(exp) is the world average experimental value.

Published
2001
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