Academic literature on the topic 'Running of coupling constants'

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Journal articles on the topic "Running of coupling constants"

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GIUNTI, C., C. W. KIM, and U. W. LEE. "RUNNING COUPLING CONSTANTS AND GRAND UNIFICATION MODELS." Modern Physics Letters A 06, no. 19 (1991): 1745–55. http://dx.doi.org/10.1142/s0217732391001883.

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The evolution of the gauge coupling constants in the SU (N) and SO (N) grand unification models is examined. It is shown that the three coupling constants αs, α2, α1 in the minimal SU(5) model do not merge into one at 99% confidence level when they are extrapolated from the values at the mass scale MZ, whereas in its supersymmetric version, the coupling constants do merge into one within one standard deviation. In the SU (N) (with N > 5) models with a two-step symmetry breaking the coupling constants can merge into one, but these models are ruled out by the constraint imposed on the unifica
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Lombardo, Fernando C., and Francisco D. Mazzitelli. "Einstein-Langevin equations from running coupling constants." Physical Review D 55, no. 6 (1997): 3889–92. http://dx.doi.org/10.1103/physrevd.55.3889.

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Qing, Ji, Yu Kai, Yu Hui, Wang Yong-Hong, and Zhao Tong-Jun. "Running Coupling Constants in N-N Interaction." Communications in Theoretical Physics 36, no. 1 (2001): 44–46. http://dx.doi.org/10.1088/0253-6102/36/1/44.

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Boosé, D., J. L. Jacquot, and J. Polonyi. "Running coupling constants of the Luttinger liquid." Physics Letters A 347, no. 4-6 (2005): 191–99. http://dx.doi.org/10.1016/j.physleta.2005.07.054.

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Wiesendanger, C., and A. Wipf. "Running Coupling Constants from Finite Size Effects." Annals of Physics 233, no. 1 (1994): 125–61. http://dx.doi.org/10.1006/aphy.1994.1063.

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BASTERO-GIL, M., V. MANÍAS, and J. PÉREZ-MERCADER. "THRESHOLD EFFECTS AND PERTURBATIVE UNIFICATION." International Journal of Modern Physics A 10, no. 03 (1995): 373–88. http://dx.doi.org/10.1142/s0217751x95000164.

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We discuss the effect of the renormalization prescription in the computation of the unification point for running coupling constants. We explore the effects of threshold crossing on the β functions. We compute the running of the coupling constants of the Standard Model, between mz and Mp, using a mass-dependent subtraction procedure, and then compare the results with [Formula: see text] and with the θ function approximation. We also do this for the minimal supersymmetric extension of the Standard Model. In the latter, the bounds on SUSY masses that one obtains by requiring perturbative unifica
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BAILIN, DAVID, and ALEX LOVE. "FRACTIONAL CHARGED COLOR SINGLET STATES AND STRING UNIFICATION." Modern Physics Letters A 07, no. 16 (1992): 1485–95. http://dx.doi.org/10.1142/s0217732392001154.

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The question of whether contributions of exotic multiplets of the gauge group to the running of gauge coupling constants from the string scale to low energy can lead to consistency with the precision low energy values of gauge couplings is discussed for theories with SO(6)×SO(4), SU(3)×SU(3)×SU(3) and flipped SU(5)×U(1) grand unification.
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SÁNCHEZ-VEGA, BRUCE L., and ILYA L. SHAPIRO. "THE CASE OF ASYMPTOTIC SUPERSYMMETRY." Modern Physics Letters A 28, no. 14 (2013): 1350053. http://dx.doi.org/10.1142/s0217732313500533.

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We start systematic investigation for the possibility to have supersymmetry (SUSY) as an asymptotic state of the gauge theory in the high energy (UV) limit, due to the renormalization group running of coupling constants of the theory. The answer on whether this situation takes place or not, can be resolved by dealing with the running of the ratios between Yukawa and scalar couplings to the gauge coupling. The behavior of these ratios does not depend too much on whether gauge coupling is asymptotically free (AF) or not. It can be shown that the UV stable fixed point for the Yukawa coupling is n
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Zisheng, Wang, Ma Zhongyu, and Zhuo Yizhong. "Running coupling constants in Walecka model and renormalization-group equations." Physical Review C 55, no. 6 (1997): 3159–62. http://dx.doi.org/10.1103/physrevc.55.3159.

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Shojaei-Fard, Ali. "Non-perturbative β-functions via Feynman graphons". Modern Physics Letters A 34, № 14 (2019): 1950109. http://dx.doi.org/10.1142/s0217732319501098.

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Dissertations / Theses on the topic "Running of coupling constants"

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Tekin, Fatih. "The strong coupling constant of QCD with four flavors." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2010. http://dx.doi.org/10.18452/16247.

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In dieser Arbeit studieren wir durch numerische Simulationen die Theorie der starken Wechselwirkung Quantenchromodynamik auf einem Raumzeit-Gitter (Gitter-QCD) mit vier dynamischen Quark-Flavors. In den Anfaengen der Gitter QCD wurden die Effekte der Quark-Polarisation aufgrund von technischer Begrenzung der Rechenkapazitaet vernachlaessigt und die sogennante "quenched Approximation" angewendet. Der Grund fuer die "quenched" Approximation war, dass der numerische Aufwand um die Fermion-Determinante auszuwerten die damaligen technischen Moeglichkeiten ueberstieg. In der Tat ist dies immer noch
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Astorga-Saenz, Francisco Antonio. "Coupling constants and unification." Thesis, Durham University, 1994. http://etheses.dur.ac.uk/5668/.

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The first part of this work gives a general background for the ideas involved in the research presented in this thesis. Coupling constants, Renor-malisation Group Equation, Grand Unified Theories (GUTs) and Super symmetry (SUSY) are briefly introduced. Following this, we analyse the unification parameters M(_GUT) and l/α(_GUT) as functions of the number of fermion families (F) and Higgs boson multiplets (S). Analytical and numerical solutions to the leading and next-to-leading order evolution equation for the couplings a, are obtained. This is done in the context of the Standard Model embedded
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Wallace, D. S. "Electron-lattice coupling in conjugated polymers." Thesis, University of Oxford, 1989. http://ora.ox.ac.uk/objects/uuid:49bef560-dfdc-43b2-b4e2-fdf6e4ee763d.

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The results obtained by this new method are shown to be able to account for most of the shortcomings of the earlier methods, in particular their failure satisfactorily to explain the quenching of luminescence in cis-polyacetylene and their poor predictions of the relative strengths of the two photoinduced absorption peaks in polythiophene. The ability of trans-polyacetylene (t-PA) to support a novel type of dynamic defect known as a breather is also verified. A quantitative estimate is made of the mobility of the fundamental defect in t-PA, known as a soliton, and this is in good agreement wit
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Ho, Andy C. T. "Imaginary charge quantum electrodynamics : a running coupling analysis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0005/NQ34551.pdf.

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Ionides, John Michael Constantine. "Methods for measuring long-range heteronuclear coupling constants in macromolecules." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624647.

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Hillenbach, Mark. "Local gauge coupling running in supersymmetric gauge theories on orbifolds." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=984665277.

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Sutton, Peter Gordon. "Confirmational analysis of molecules by NMR spectroscopy using vicinal '1'3C-'1'3C coupling constants." Thesis, University of Sussex, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318515.

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Sharkey, Kieran James. "An investigation of the running coupling and meson masses in lattice QCD." Thesis, University of Liverpool, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343926.

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Jia, Hsi-Wei. "Selective excitation in high-resolution NMR for determination of coupling constants and internuclear distances." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627313.

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Lee, Steven Robert. "A new experiment to determine the weak coupling constants ratio : G←A/G←V." Thesis, University of Sussex, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336060.

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Books on the topic "Running of coupling constants"

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Gupta, R. R., V. Gupta, and M. D. Lechner, eds. Chemical Shifts and Coupling Constants for Boron-11. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01994-4.

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Gupta, R. R., M. D. Lechner, and V. Gupta, eds. Chemical Shifts and Coupling Constants for Phosphorus-31. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41599-9.

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Gupta, R. R., M. D. Lechner, and V. Gupta, eds. Chemical Shifts and Coupling Constants for Phosphorus-31. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32069-9.

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Gupta, R. R., and M. D. Lechner, eds. Chemical Shifts and Coupling Constants for Silicon-29. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-45278-2.

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Gupta, R. R., M. D. Lechner, and V. Gupta, eds. Chemical Shifts and Coupling Constants for Phosphorus-31. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41613-2.

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Gupta, R. R., M. D. Lechner, and V. Gupta, eds. Chemical Shifts and Coupling Constants for Carbon-13. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14249-9.

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Gupta, R. R., and M. D. Lechner, eds. Chemical Shifts and Coupling Constants for Selenium-77. Springer-Verlag, 2004. http://dx.doi.org/10.1007/b79070.

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Lechner, M. D., and R. R. Gupta, eds. Chemical Shifts and Coupling Constants for Carbon-13. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-47067-0.

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Gupta, R. R., M. D. Lechner, and V. Gupta, eds. Chemical Shifts and Coupling Constants for Carbon-13. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-45285-0.

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Hüttner, W., ed. Dipole Moments, Quadrupole Coupling Constants, Hindered Rotation and Magnetic Interaction Constants of Diamagnetic Molecules. Springer-Verlag, 2002. http://dx.doi.org/10.1007/b75954.

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Book chapters on the topic "Running of coupling constants"

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Defranchis, Matteo M. "Extraction of the Top Quark Mass and the Strong Coupling Constant." In First Measurement of the Running of the Top Quark Mass. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-90376-3_6.

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Chen, Min. "Measuring the Running Coupling Constant of the Strong, the Electromagnetic and Weak Forces." In Old and New Forces of Nature. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-1309-0_9.

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Dürr, H. P., and W. Heisenberg. "Strange-Particle Coupling Constants." In Original Scientific Papers / Wissenschaftliche Originalarbeiten. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-70079-8_32.

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Saller, Heinrich. "Masses and Coupling Constants." In Operational Spacetime. Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0898-8_13.

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Strauch, D. "InAs: dielectric constants, Raman coupling oefficient." In New Data and Updates for IV-IV, III-V, II-VI and I-VII Compounds, their Mixed Crystals and Diluted Magnetic Semiconductors. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14148-5_121.

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Schwerdtfeger, Peter, Markus Pernpointner, and Witold Nazarewicz. "Calculation of Nuclear Quadrupole Coupling Constants." In Calculation of NMR and EPR Parameters. Wiley-VCH Verlag GmbH & Co. KGaA, 2004. http://dx.doi.org/10.1002/3527601678.ch17.

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Roduner, E. "Substituent effects on hyperfine coupling constants." In Lecture Notes in Chemistry. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-51720-4_5.

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Marchesini, Giuseppe. "Power Terms in QCD Hard Processes and Running Coupling." In New Non-Perturbative Methods and Quantization on the Light Cone. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-08973-6_25.

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Kumar, M. "Chemical Shifts and Coupling Constants for C28H52NO3P." In Chemical Shifts and Coupling Constants for Phosphorus-31. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41599-9_492.

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Kumar, M. "Chemical Shifts and Coupling Constants for C28H54NO3PS." In Chemical Shifts and Coupling Constants for Phosphorus-31. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41599-9_493.

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Conference papers on the topic "Running of coupling constants"

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Vieira, A. R., and N. Sherrill. "Lorentz-Violating Running of Coupling Constants." In Eighth Meeting on CPT and Lorentz Symmetry. WORLD SCIENTIFIC, 2020. http://dx.doi.org/10.1142/9789811213984_0025.

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Du, Xining. "RI-MOM scheme renormalization constants (Nf=4) and the running coupling constant (Nf=2+1+1) using twisted-Wilson quarks." In XXIX International Symposium on Lattice Field Theory. Sissa Medialab, 2012. http://dx.doi.org/10.22323/1.139.0223.

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CUCCHIERI, A. "LATTICE SIMULATIONS FOR THE RUNNING COUPLING CONSTANT OF QCD." In Proceedings of the VIII International Workshop. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812704429_0007.

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BALDICCHI, M., and G. M. PROSPERI. "INFRARED BEHAVIOR OF THE RUNNING COUPLING CONSTANT AND QUARKONIUM SPECTRUM." In Proceedings of the 5th International Conference. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812704269_0064.

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Baldicchi, M. "Running coupling constant and masses in QCD, the meson spectrum." In QUARK CONFINEMENT AND THE HADRON SPECTRUM VI: 6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004. AIP, 2005. http://dx.doi.org/10.1063/1.1920942.

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Kurachi, Masafumi, Erek Bilgici, Antonino Flachi, et al. "A new method of calculating the running coupling constant --- theoretical formulation ---." In The XXVI International Symposium on Lattice Field Theory. Sissa Medialab, 2009. http://dx.doi.org/10.22323/1.066.0247.

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Cucchieri, A. "Running coupling constant from lattice studies of gluon and ghost propagators." In IX HADRON PHYSICS AND VII RELATIVISTIC ASPECTS OF NUCLEAR PHYSICS: A Joint Meeting on QCD and QCP. AIP, 2004. http://dx.doi.org/10.1063/1.1843600.

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BALDICCHI, M., and G. M. PROSPERI. "LIGHT MESONS AND INFRARED BEHAVIOR OF THE RUNNING COUPLING CONSTANT IN QCD." In Proceedings of the International Conference. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812702845_0014.

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van Neerven, W. L. "Heavy flavor contributions to QCD sum rules and the running coupling constant." In The international workshop on hadron physics of low energy QCD. AIP, 2000. http://dx.doi.org/10.1063/1.1303021.

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FABBRI, LUCA. "FROM EXTENDED GRAVITY WITH TORSION-SPIN COUPLING TO RUNNING CONSTANT FOR WEAK-LEPTONIC FORCES." In Proceedings of the MG13 Meeting on General Relativity. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814623995_0097.

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Reports on the topic "Running of coupling constants"

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Stratton, R. A., and A. J. Stirling. Examining the dynamical response to convective heating using an idealised version of the Met Office’s Unified Model. Met Office, 2024. http://dx.doi.org/10.62998/ouao1203.

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In global circulation models, poor coupling between convection parametrizations and the resolved dynamics poses significant obstacles to the representation of a range of convectively coupled atmospheric phenomena. Here we focus on one part of this coupling and ask whether the dynamical response to convection can adequately be captured when convection is parametrized only as heat and moisture sources to the resolved scale, (as is usually the case in convection parametrizations), and without including either mass, or vertical momentum transport terms. To this end, a ‘perfect’ convection parametr
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