Fermi surface and heavy masses forUPd2Al3
نویسندگان
چکیده
منابع مشابه
Temperature-dependent Fermi surface evolution in heavy fermion CeIrIn5.
We address theoretically the evolution of the heavy fermion Fermi surface (FS) as a function of temperature (T), using a first principles dynamical mean-field theory approach combined with density functional theory. We focus on the archetypical heavy electrons in CeIrIn{5}. Upon cooling, both the quantum oscillation frequencies and cyclotron masses show logarithmic scaling behavior [∼ln(T{0}/T)...
متن کاملHeavy Families: Masses and Mixings*
We use the infrared fixed point structure of the SU(3) x SU(2) x U(1) renormalization group equations to derive predictions for the masses and mixings of heavy families in perturbatively unifiable grand unified theories. We show that the sum of the squares of all quark (or lepton) masses must be less than (355 GeV)2. This implies that theories with NH heavy families must have at least one new q...
متن کاملMixing and Heavy Baryon Masses
We examine the ΞQ-Ξ ′ Q mixing and heavy baryon masses in the heavy quark effective theory with the 1/mQ corrections. In the conventional baryon assignment, we obtain the mixing angle cos θ = 0.87 ± 0.03 in virtue of the GellMann−Okubo mass relation. On the other hand, if we adopt the new baryon assignment given by Falk, the allowed region of the Σc mass is upper from 2372MeV. The heavy quark e...
متن کاملPrecise Heavy Quark Masses ∗
Recent theoretical and experimental improvements in the determination of charmedand bottom-quark masses are discussed. The final results, mc(3GeV) = 986(13)MeV and mb(mb) = 4163(16) MeV, are among the most precise determinations of these two fundamental parameter. A critical analysis of the theoretical and experimental uncertainties is presented and possibilities for further improvements of the...
متن کاملMasses of Heavy Hadrons
An estimate has been made of the masses of heavy hadrons in nonrelativistic quark model, which includes spin and flavor-dependent hyperfine splitting for two quarks. The effect of variation of the wavefunction value at origin i.e. |ψ(0)| and the strong coupling constant αs, with flavor, has also been included in calculating the mass values.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2003
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.68.052508