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Abstract
This research illustrates that complex dynamics of gene products enable the creation of any prescribed cellular differentiation patterns. These complex dynamics can take the form of chaotic, stochastic, or noisy chaotic dynamics. Based on this outcome and previous research, it is established that a generic open chemical reactor can generate an exceptionally large number of different cellular patterns. The mechanism of pattern generation is robust under perturbations and it is based on a combination of Turing's machines, Turing instability and L. Wolpert's gradients. These results can help us to explain the formidable adaptive capacities of biochemical systems.
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Affiliation(s)
- J Reinitz
- Departments of Statistics, Ecology and Evolution, Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL, 60637, USA
| | - S Vakulenko
- Institute for Problems in Mechanical Engineering, Russian Academy of Sciences, Saint Petersburg, 199178, Russia
- Saint Petersburg Electrotechnical University, Saint Petersburg, 197022, Russia
| | - I Sudakow
- School of Mathematics and Statistics, The Open University, Milton Keynes, MK7 6AA, UK.
| | - D Grigoriev
- CNRS, Mathématiques, Université de Lille, Villeneuve d'Ascq, 59655, France
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2
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Mutaliyeva B, Grigoriev D, Madybekova G, Sharipova A, Aidarova S, Saparbekova A, Miller R. Microencapsulation of insulin and its release using w/o/w double emulsion method. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.10.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Tleuova A, Aidarova S, Sharipova A, Bekturganova N, Schenderlein M, Grigoriev D. Using profile analysis tensiometry for monitoring auto-oscillations caused by the hydrolysis of 3-(trimethoxysilyl)propyl methacrylate when contacting water. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Grigoriev D, Lazarev S, Schroth P, Minkevich A, Köhl M, Slobodskyy T, Helfrich M, Schaadt D, Aschenbrenner T, Hommel D, Baumbach T. Asymmetric skew X-ray diffraction at fixed incidence angle: application to semiconductor nano-objects. J Appl Crystallogr 2016. [DOI: 10.1107/s1600576716006385] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A procedure for obtaining three-dimensionally resolved reciprocal-space maps in a skew X-ray diffraction geometry is described. The geometry allows tuning of the information depth in the range from tens of micrometres for symmetric skew diffraction down to tens of nanometres for strongly asymmetric skew geometries, where the angle of incidence is below the critical angle of total external reflection. The diffraction data are processed using a rotation matrix formalism. The whole three-dimensional reciprocal-space map can be measured by performing a single azimuthal rotation of the sample and using a two-dimensional detector, while keeping the angle of incidence and the X-ray information depth fixed (FIXD method). Having a high surface sensitivity under grazing-incidence conditions, the FIXD method can be applied to a large variety of Bragg reflections, particularly polar ones, which provide information on strain and chemical composition separately. In contrast with conventional grazing-incidence diffraction, the FIXD approach reveals, in addition to the lateral (in-plane) components, the vertical (out-of-plane) component of the strain field, and therefore allows the separation of the scattering contributions of strained epitaxial nanostructures by their vertical misfit. The potential of FIXD is demonstrated by resolving the diffraction signal from a single layer of InGaN quantum dots grown on a GaN buffer layer. The FIXD approach is suited to the study of free-standing and covered near-surface nano-objects, as well as vertically extended multilayer structures.
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Sharipova A, Aidarova S, Grigoriev D, Mutalieva B, Madibekova G, Tleuova A, Miller R. Polymer–surfactant complexes for microencapsulation of vitamin E and its release. Colloids Surf B Biointerfaces 2016; 137:152-7. [DOI: 10.1016/j.colsurfb.2015.03.063] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 03/26/2015] [Accepted: 03/31/2015] [Indexed: 12/01/2022]
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Grigoriev D, Reinitz J, Vakulenko S, Weber A. Punctuated evolution and robustness in morphogenesis. Biosystems 2014; 123:106-13. [PMID: 24996115 PMCID: PMC4283494 DOI: 10.1016/j.biosystems.2014.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/25/2014] [Accepted: 06/29/2014] [Indexed: 11/23/2022]
Abstract
This paper presents an analytic approach to the pattern stability and evolution problem in morphogenesis. The approach used here is based on the ideas from the gene and neural network theory. We assume that gene networks contain a number of small groups of genes (called hubs) controlling morphogenesis process. Hub genes represent an important element of gene network architecture and their existence is empirically confirmed. We show that hubs can stabilize morphogenetic pattern and accelerate the morphogenesis. The hub activity exhibits an abrupt change depending on the mutation frequency. When the mutation frequency is small, these hubs suppress all mutations and gene product concentrations do not change, thus, the pattern is stable. When the environmental pressure increases and the population needs new genotypes, the genetic drift and other effects increase the mutation frequency. For the frequencies that are larger than a critical amount the hubs turn off; and as a result, many mutations can affect phenotype. This effect can serve as an engine for evolution. We show that this engine is very effective: the evolution acceleration is an exponential function of gene redundancy. Finally, we show that the Eldredge-Gould concept of punctuated evolution results from the network architecture, which provides fast evolution, control of evolvability, and pattern robustness. To describe analytically the effect of exponential acceleration, we use mathematical methods developed recently for hard combinatorial problems, in particular, for so-called k-SAT problem, and numerical simulations.
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Affiliation(s)
- D Grigoriev
- CNRS, Mathématiques, Université de Lille, Villeneuve d'Ascq 59655, France.
| | - J Reinitz
- Department of Statistics, University of Chicago, Chicago, IL 60637, United States; Department of Ecology and Evolution, University of Chicago, United States; Department of Molecular Genetics and Cell Biology, University of Chicago, United States; Institute for Genomics and Systems Biology, University of Chicago, United States.
| | - S Vakulenko
- Institute for Mechanical Engineering Problems, Bolshoy pr. V. O.61, Sankt Petersburg, Russia; ITMO University, Sankt Petersburg, Russia.
| | - A Weber
- Computer Science Department, University of Bonn, 53113 Bonn, Germany.
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Slobodskyy T, Schroth P, Grigoriev D, Minkevich AA, Hu DZ, Schaadt DM, Baumbach T. A portable molecular beam epitaxy system for in situ x-ray investigations at synchrotron beamlines. Rev Sci Instrum 2012; 83:105112. [PMID: 23126809 DOI: 10.1063/1.4759495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A portable synchrotron molecular beam epitaxy (MBE) system is designed and applied for in situ investigations. The growth chamber is equipped with all the standard MBE components such as effusion cells with shutters, main shutter, cooling shroud, manipulator, reflection high energy electron diffraction setup, and pressure gauges. The characteristic feature of the system is the beryllium windows which are used for in situ x-ray measurements. An UHV sample transfer case allows in vacuo transfer of samples prepared elsewhere. We describe the system design and demonstrate its performance by investigating the annealing process of buried InGaAs self-organized quantum dots.
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Affiliation(s)
- T Slobodskyy
- Institute for Synchrotron Radiation, Karlsruhe Institute of Technology-76344 Eggenstein-Leopoldshafen, Germany.
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Rack A, Weitkamp T, Riotte M, Grigoriev D, Rack T, Helfen L, Baumbach T, Dietsch R, Holz T, Krämer M, Siewert F, Meduna M, Cloetens P, Ziegler E. Comparative study of multilayers used in monochromators for synchrotron-based coherent hard X-ray imaging. J Synchrotron Radiat 2010; 17:496-510. [PMID: 20567082 DOI: 10.1107/s0909049510011623] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 03/26/2010] [Indexed: 05/29/2023]
Abstract
A systematic study is presented in which multilayers of different composition (W/Si, Mo/Si, Pd/B(4)C), periodicity (from 2.5 to 5.5 nm) and number of layers have been characterized. In particular, the intrinsic quality (roughness and reflectivity) as well as the performance (homogeneity and coherence of the outgoing beam) as a monochromator for synchrotron radiation hard X-ray micro-imaging are investigated. The results indicate that the material composition is the dominating factor for the performance. By helping scientists and engineers specify the design parameters of multilayer monochromators, these results can contribute to a better exploitation of the advantages of multilayer monochromators over crystal-based devices; i.e. larger spectral bandwidth and high photon flux density, which are particularly useful for synchrotron-based micro-radiography and -tomography.
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Affiliation(s)
- A Rack
- European Synchrotron Radiation Facility, Grenoble Cedex, France.
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9
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Schmidbauer M, Schäfer P, Besedin S, Grigoriev D, Köhler R, Hanke M. A novel multi-detection technique for three-dimensional reciprocal-space mapping in grazing-incidence X-ray diffraction. J Synchrotron Radiat 2008; 15:549-557. [PMID: 18955760 DOI: 10.1107/s0909049508023856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Accepted: 07/28/2008] [Indexed: 05/27/2023]
Abstract
A new scattering technique in grazing-incidence X-ray diffraction geometry is described which enables three-dimensional mapping of reciprocal space by a single rocking scan of the sample. This is achieved by using a two-dimensional detector. The new set-up is discussed in terms of angular resolution and dynamic range of scattered intensity. As an example the diffuse scattering from a strained multilayer of self-assembled (In,Ga)As quantum dots grown on GaAs substrate is presented.
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Affiliation(s)
- M Schmidbauer
- Leibniz Institut für Kristallzüchtung, Max-Born-Strasse 2, D-12489 Berlin, Germany.
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10
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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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Grigoriev D, Gorin D, Sukhorukov GB, Yashchenok A, Maltseva E, Möhwald H. Polyelectrolyte/magnetite nanoparticle multilayers: preparation and structure characterization. Langmuir 2007; 23:12388-12396. [PMID: 17958452 DOI: 10.1021/la700963h] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Polyelectrolyte composite planar films containing a different number of iron oxide (Fe3O4) nanoparticle layers have been prepared using the layer-by-layer adsorption technique. The nanocomposite assemblies were characterized by ellipsometry, UV-vis spectroscopy, and AFM. Linear growth of the multilayer thickness with the increase of the layer number, N, up to 12 reflects an extensive character of this parameter in this range. A more complicated behavior of the refractive index is caused by changes in the multilayer structure, especially for the thicker nanocomposites. A quantitative analysis of the nanocomposite structure is provided comparing a classical and a modified effective medium approach taking into account the influence of light absorption by the Fe3O4 nanoparticles on the complex refractive index of the nanocomposite and contributions of all components to film thickness. Dominant influence of co-adsorbed water on their properties was found to be another interesting peculiarity of the nanocomposite film. This effect, as well as possible film property modulation by light, is discussed.
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Affiliation(s)
- D Grigoriev
- Max-Planck Institute of Colloids and Interfaces, Golm/Potsdam, Germany.
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12
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Fortes AD, Wood IG, Grigoriev D, Alfredsson M, Kipfstuhl S, Knight KS, Smith RI. No evidence for large-scale proton ordering in Antarctic ice from powder neutron diffraction. J Chem Phys 2006; 120:11376-9. [PMID: 15268170 DOI: 10.1063/1.1765099] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have examined a sample of 3000 year old Antarctic ice, collected at the Kohnen Station, by time-of-flight powder neutron diffraction to test the hypothesis of Fukazawa et al. [e.g., Ann. Glaciol. 31, 247 (2000)] that such ice may be partially proton ordered. Great care was taken to keep our sample below the proposed ordering temperature (237 K) at all times, but we did not observe any evidence of proton ordering.
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Affiliation(s)
- A D Fortes
- Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, United Kingdom.
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13
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Schmidbauer M, Seydmohamadi S, Grigoriev D, Wang ZM, Mazur YI, Schäfer P, Hanke M, Köhler R, Salamo GJ. Controlling planar and vertical ordering in three-dimensional (In,Ga)As quantum dot lattices by GaAs surface orientation. Phys Rev Lett 2006; 96:066108. [PMID: 16606019 DOI: 10.1103/physrevlett.96.066108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2005] [Indexed: 05/08/2023]
Abstract
Anisotropic surface diffusion and strain are used to explain the formation of three-dimensional (In,Ga)As quantum dot lattices. The diffusion characteristics of the surface, coupled with the elastic anisotropy of the matrix, provides an excellent opportunity to influence the dot positions. In particular, quantum dots that are laterally organized into long chains or chessboard two-dimensional arrays vertically organized with strict vertical ordering or vertical ordering that is inclined to the sample surface normal are accurately predicted and observed.
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Affiliation(s)
- M Schmidbauer
- Institut für Kristallzüchtung, D-12489 Berlin, Germany
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14
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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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15
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Grigoriev D, Miller R, Wüstneck R, Wüstneck N, Pison U, Möhwald H. A Novel Method To Evaluate the Phase Transition Thermodynamics of Langmuir Monolayers. Application to DPPG Monolayers Affected by Subphase Composition. J Phys Chem B 2003. [DOI: 10.1021/jp0308662] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Grigoriev
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, D-14424 Potsdam, Germany, St.-Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Sodtkestrasse 20, 10409 Berlin, Germany, and Humboldt University, Virchow Klinikum, Augustenburger Pl. 1, D-13344 Berlin, Germany
| | - R. Miller
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, D-14424 Potsdam, Germany, St.-Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Sodtkestrasse 20, 10409 Berlin, Germany, and Humboldt University, Virchow Klinikum, Augustenburger Pl. 1, D-13344 Berlin, Germany
| | - R. Wüstneck
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, D-14424 Potsdam, Germany, St.-Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Sodtkestrasse 20, 10409 Berlin, Germany, and Humboldt University, Virchow Klinikum, Augustenburger Pl. 1, D-13344 Berlin, Germany
| | - N. Wüstneck
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, D-14424 Potsdam, Germany, St.-Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Sodtkestrasse 20, 10409 Berlin, Germany, and Humboldt University, Virchow Klinikum, Augustenburger Pl. 1, D-13344 Berlin, Germany
| | - U. Pison
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, D-14424 Potsdam, Germany, St.-Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Sodtkestrasse 20, 10409 Berlin, Germany, and Humboldt University, Virchow Klinikum, Augustenburger Pl. 1, D-13344 Berlin, Germany
| | - H. Möhwald
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, D-14424 Potsdam, Germany, St.-Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Sodtkestrasse 20, 10409 Berlin, Germany, and Humboldt University, Virchow Klinikum, Augustenburger Pl. 1, D-13344 Berlin, Germany
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16
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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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Affiliation(s)
- D. Grigoriev
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, Rudower Chaussee 5, D-12489 Berlin, Germany, St. Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Department of Physical Chemistry, University of Sofia, 1 J. Bourchier Ave., 1126 Sofia, Bulgaria, and Virchov-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
| | - R. Krustev
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, Rudower Chaussee 5, D-12489 Berlin, Germany, St. Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Department of Physical Chemistry, University of Sofia, 1 J. Bourchier Ave., 1126 Sofia, Bulgaria, and Virchov-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
| | - R. Miller
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, Rudower Chaussee 5, D-12489 Berlin, Germany, St. Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Department of Physical Chemistry, University of Sofia, 1 J. Bourchier Ave., 1126 Sofia, Bulgaria, and Virchov-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
| | - U. Pison
- Max-Planck Institut für Kolloid- und Grenzflächenforschung, Rudower Chaussee 5, D-12489 Berlin, Germany, St. Petersburg State University, Institute of Chemistry, Universitetskiy pr. 2, St.-Petersburg, 198904 Russia, Department of Physical Chemistry, University of Sofia, 1 J. Bourchier Ave., 1126 Sofia, Bulgaria, and Virchov-Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
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