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Solodov EP, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kazanin VF, Koop IA, Kirpotin AN, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lukin PA, Mikhailov KY, Okhapkin VS, Pestov YN, Popov AS, Razuvaev GP, Rogovsky YA, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Semenov AV, Shatunov YM, Shatunov PY, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Titov VM, Talyshev AA, Vorobiov AI, Zemlyansky IM, Yudin YV. The NNbar and multihadron production at the threshold at VEPP2000. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921207002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A study of hadron production at the nucleon-antinucleon threshold has been performed with the CMD-3 detector at the VEPP-2000 e+e− collider. A very fast rise with an about 1 MeV width has been observed in the e+e−→ pp̅ cross section. A sharp drop in the e+ e−→ 3(π+π−) cross section has been con?rmed and found to have a width of less than 2 MeV, in agreement with the observed fast rise of the e+e−→ pp̅ cross section. For the ?rst time a similar sharp drop is demonstrated in the e+e−→ K+ K−π+π− cross section. The behavior of the e+e−→ 3(π+ π−), K+ K−π+π− cross sections cannot be explained by an interference of any resonance amplitude with continuum, therefore this phenomenon cannot be due to a narrow near-threshold resonance. No such structure has been observed in the e+e−→ 2(π+π−) cross section.
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2
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Ignatov FV, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ivanov VL, Karpov SV, Kazanin VF, Koop IA, Kirpotin AN, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lukin PA, Mikhailov KY, Okhapkin VS, Pestov YN, Popov AS, Razuvaev GP, Rogovsky YA, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Semenov AV, Shatunov YM, Shatunov PY, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Solodov EP, Titov VM, Talyshev AA, Vorobiov AI, Zemlyansky IM, Yudin YV. Recent results from CMD-3. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921204001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Regular data taking with the CMD-3 at the electron-positron collider VEPP-2000 is under way since 2010. The collected data sample corresponds to about 200 inverse picobarns of integrated luminosity per detector in the energy range from 0.32 up to 2 GeV, with a goal to collect about 1 fb−1 during next five years. Some of the recent results from the CMD-3 detector are discussed.
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3
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Erofeev AL, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kasaev AS, Kazanin VF, Koop IA, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lysenko AP, Lukin PA, Mikhailov KY, Okhapkin VS, Otboev AV, Perevedentsev EA, Pestov YN, Popov AS, Razuvaev GP, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Semenov AV, Senchenko AI, Shatunov YM, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Solodov EP, Titov VM, Talyshev AA, Vorobiov AI, Yudin YV. Study of the process e+e−→ K+K−π 0 in the center-of-mass energy range 1.2–2 GeV with the CMD-3 detector. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921204007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The process e+ e−→ K+ K−π0 has been studied in the center-of-mass energy range from 1.2 to 2 GeV using a 80.6 pb−1 data sample collected with the CMD-3 detector at the electron-positron collider VEPP-2000. Preliminary results of the cross-section measurement are presented.
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4
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Semenov AV, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kazanin VF, Koop IA, Kirpotin AN, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lukin PA, Mikhailov KY, Okhapkin VS, Pestov YN, Popov AS, Razuvaev GP, Rogovsky YA, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Shatunov YM, Shatunov PY, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Solodov EP, Titov VM, Talyshev AA, Vorobiov AI, Zemlyansky IM, Yudin YV. Study of the e+e−→ KS KLπ 0 process up to 2 GeV with the CMD-3 detector at the VEPP-2000 collider. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921204008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The cross section of the process e+ e−→ KS KL π0 has been studied with the CMD-3 detector at the VEPP-2000 electron-positron collider in the center-of-mass energy range from 1.1 to 2 GeV. Preliminary results on the total cross section of the process are presented.
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5
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Fedotovich GV, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kazanin VF, Kirpotin AN, Koop IA, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lukin PA, Mikhailov KY, Okhapkin VS, OTBOEV AV, Peatov YN, Popov AS, Razuvaev GP, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Stnchenko AI, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Shatunov PY, Shatunov YM, Solodov EP, Talyshev AA, Titov VM, Tolmachev SS, Vorobiov AI, Zemlyansky IM, Yudin YV. Recent results of the hadronic cross section measurements with the CMD-3 detector at e+e− collider VEPP-2000. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201919902027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A brief review of the recent results on the hadronic cross section measurements with the CMD-3 detector at the e+e− collider VEPP-2000 is given. Focus is made on the processes with charged kaons in multihadron events, which have a strong impact on strange meson spectroscopy and form factors that are important ingredients in the Dalitz plot analysis. Experimental data relevant to the topic are presented from the broad energy range covered by VEPP-2000 and compared to earlier measurements by the different collaborations. The analysis is based on the integrated luminosity of about 100 pb−1 collected in 2011, 2012 and 2017.
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6
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Kozyrev EA, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kazanin VF, Koop IA, Kirpotin AN, Korobov AA, Kozyrev AN, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lukin PA, Mikhailov KY, Okhapkin VS, Pestov YN, Popov AS, Razuvaev GP, Rogovsky YA, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Semenov AV, Shatunov YM, Shatunov PY, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Solodov EP, Titov VM, Talyshev AA, Vorobiov AI, Zemlyansky IM, Yudin YV. An amplitude analysis of the process e+e-→ 4π in the center-of-mass energy range 900–2000 MeV with the CMD3 detector at the VEPP-2000 e+e- collider. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921203008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A large data sample of e+e-→ 4π collected by the CMD-3 experiment at the VEPP-2000 e+ e− collider allowed for an amplitude analysis of the process e+e−→ 4π in the center-of-mass energy range 900–2000 MeV. Various intermediate components were distinguished and dominance of the ωπ0 and a1π amplitudes has been proved.
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7
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Tolmachev SS, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kazanin VF, Kirpotin AN, Koop IA, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lukin PA, Mikhailov KY, Okhapkin VS, Pestov YN, Popov AS, Razuvaev GP, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Semenov AV, Shatunov YM, Shatunov PY, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Solodov EP, Titov VM, Talyshev AA, Vorobiov AI, Zemlyansky IM, Yudinl YV. Study of the process e+e-→π+π-γ with the CMD-3 detector at the e+e- collider VEPP-2000. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921204012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Existing Monte-Carlo generators with radiative corrections to the e+e-→π+π- process are usually developed under the assumption that pions can be treated as pointlike particles. We study the e+e-→π+π-γ process with final-state radiation and test this assumption using simulated events from the MCGPJ generator based on the scalar QED hypothesis. In order to increase a fraction of events with FSR, the analysis was performed in the energy region to the left from the ρ-meson peak (660÷785 MeV) that is based on the integrated luminosity of about 8.4 pb-1. The experimental data for the photon energy spectrum agree with the simulation results at 1% level.
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8
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Shemyakin DN, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kasaev AS, Kazanin VF, Koop IA, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lysenko AP, Lukin PA, Mikhailov KY, Okhapkin VS, Otboev AV, Perevedentsev EA, Pestov YN, Popov AS, Razuvaev GP, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Semenov AV, Senchenko AI, Shatunov YM, Shebalin VE, Shwartz BA, Shwartz DB, Sibidanov AL, Solodov EP, Titov VM, Talyshev AA, Tolmachev SS, Vorobiov AI, Yudin YV. Search for the process e +e −→D *(2007) with the CMD-3 detector. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921202011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A search for the process e+e−→ D*0(2007) has been performed with the CMD-3 detector at the VEPP-2000 e+e−-collider. Two main decay modes of the D*0(2007) decay, D0π0 and D0γ, followed by D0 → K+π−π+π−are used in this analysis. With an integrated luminosity of 3.7 pb−1 collected at the center-of-mass energy Ec.m. =2006.62 MeV our preliminary upper limit is BD*0→e+ e− <1.6× 10−6 at 90%C.L.
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9
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Korobov AA, Akhmetshin RR, Amirkhanov AN, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bondar AE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Fedotovich GV, Gayazov SE, Grebenuk AA, Gribanov SS, Grigoriev DN, Ignatov FV, Ivanov VL, Karpov SV, Kasaev AS, Kazanin VF, Koop IA, Korobov AA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lysenko AP, Lukin PA, Mikhailov KY, Okhapkin VS, Otboev AV, Perevedentsev EA, Pestov YN, Popov AS, Razuvaev GP, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Semenov AV, Senchenko AI, Shatunov YM, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Solodov EP, Titov VM, Talyshev AA, Vorobiov AI, Yudin YV. Study of π +π −π +π − production with CMD-3 detector at the VEPP-2000 collider. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921204009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The cross section of the process e+e−→ π+π−π+π− has been measured using an integrated luminosity of 17 pb−1 collected with the CMD-3 detector in the center-of-mass energy range 650-1000 MeV. High-precision measurements of various hadronic cross sections are of great interest in relation with the problem of the muon anomalous magnetic moment g-2. This measurement can be also used to test the relation between the cross section of e+e−→ π+ π−π+ π− and the spectral function for the τ−→ π−π0π0π0 decay predicted by the conservation of vector current (CVC).
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10
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Fedotovich GV, Akhmetshin RR, Anisenkov AV, Aulchenko VM, Banzarov VS, Bashtovoy NS, Berkaev DE, Bragin AV, Eidelman SI, Epifanov DA, Epshteyn LB, Erofeev AL, Gayazov SE, Grebenuk AA, Grigoriev DN, Gromov EM, Ignatov FV, Ivanov VL, Karpov SV, Kazanin VF, Khazin BI, Kirpotin AN, Koop IA, Kovalenko OA, Kozyrev AN, Kozyrev EA, Krokovny PP, Kuzmenko AE, Kuzmin AS, Logashenko IB, Lukin PA, Lysenko AP, Mikhailov KY, Okhapkin VS, Pestov YN, Perevedentsev EA, Popov AS, Razuvaev GP, Rogovsky YA, Romanov AL, Ruban AA, Ryskulov NM, Ryzhenenkov AE, Shebalin VE, Shemyakin DN, Shwartz BA, Shwartz DB, Sibidanov AL, Shatunov PY, Shatunov YM, Solodov EP, Titov VM, Talyshev AA, Vorobiov AI, Yudin YV, Zharinov YM. Overview of the CMD-3 recent results at e+e−collider VEPP-2000. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201613001014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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11
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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, 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 CJG, 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, Zimmerman D. Search for Lorentz and CPT violation effects in Muon spin precession. Phys Rev Lett 2008; 100:091602. [PMID: 18352695 DOI: 10.1103/physrevlett.100.091602] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2007] [Indexed: 05/26/2023]
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.
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Affiliation(s)
- G W Bennett
- Brookhaven National Laboratory, Upton, NY 11973, USA
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12
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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 FJM, 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 CJG, 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, Yamamoto A. Measurement of the negative muon anomalous magnetic moment to 0.7 ppm. Phys Rev Lett 2004; 92:161802. [PMID: 15169217 DOI: 10.1103/physrevlett.92.161802] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2004] [Indexed: 05/24/2023]
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).
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Affiliation(s)
- G W Bennett
- Brookhaven National Laboratory, Upton, New York 11973, USA
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13
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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, 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, Yamamoto A. Measurement of the positive muon anomalous magnetic moment to 0.7 ppm. Phys Rev Lett 2002; 89:101804. [PMID: 12225185 DOI: 10.1103/physrevlett.89.101804] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2002] [Indexed: 05/23/2023]
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).
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Affiliation(s)
- G W Bennett
- Brookhaven National Laboratory, Upton, New York 11973, USA
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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, Zimmerman D. Precise measurement of the positive muon anomalous magnetic moment. Phys Rev Lett 2001; 86:2227-2231. [PMID: 11289896 DOI: 10.1103/physrevlett.86.2227] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2001] [Indexed: 05/23/2023]
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.
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Affiliation(s)
- H N Brown
- Department of Physics, Boston University, Massachusetts 02215, USA
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