منابع مشابه
Measuring the QCD Gell Mann - Low - function
We present a general method for extracting the Gell Mann-Low logarithmic derivative of an e ective charge of an observable directly from data as a mean for empirically verifying the universal terms of the QCD -function. Our method avoids the biases implicit in tting to QCD-motivated forms as well as the interpolation errors introduced by constructing derivatives from discrete data. We also deri...
متن کاملMeasuring the QCD Gell-Mann–Low C function
We present a general method for extracting the Gell-Mann–Low logarithmic derivative of an effective charge of an observable directly from data as a mean for empirically verifying the universal terms of the QCD b function. Our method avoids the biases implicit in fitting to QCD-motivated forms as well as the interpolation errors introduced by constructing derivatives from discrete data. We also ...
متن کاملThe Generalized Gell-Mann–Low Theorem for Relativistic Bound States
The recently established generalized Gell-Mann–Low theorem is applied in lowest perturbative order to bound–state calculations in a simple scalar field theory with cubic couplings. The approach via the generalized Gell-Mann–Low Theorem retains, while being fully relativistic, many of the desirable features of the quantum mechanical approaches to bound states. In particular, no abnormal or unphy...
متن کاملTwo-qutrit Entanglement Witnesses and Gell-Mann Matrices
The Gell-Mann λ matrices for Lie algebra su(3) are the natural basis for the Hilbert space of Hermitian operators acting on the states of a three-level system(qutrit). So the construction of EWs for two-qutrit states by using these matrices may be an interesting problem. In this paper, several two-qutrit EWs are constructed based on the Gell-Mann matrices by using the linear programming (LP) me...
متن کاملGell-Mann–Okubo Mass Formula for SU (4) Meson Hexadecuplet
Using a linear mass spectrum of an SU(4) meson hexadecuplet, we derive the Gell-Mann–Okubo mass formula for the charmed mesons, in good agreement with experiment. Possible generalization of this method to a higher symmetry group is briefly discussed. Bitnet: [email protected] Bitnet: [email protected]. On sabbatical leave from School of Physics and Astronomy, Tel Aviv University, Ramat Avi...
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ژورنال
عنوان ژورنال: Journal of Experimental and Theoretical Physics Letters
سال: 2002
ISSN: 0021-3640,1090-6487
DOI: 10.1134/1.1525030