منابع مشابه
Non-linear Field Theory for Lepton and Quark Masses
Barut’s formula for the mass of leptons is successfully extended to quarks. A very simple non-linear scalar field model explains both the N power law dependence of the mass, and the existence of a cut-off which limits the number of leptons to three and the number of quarks to five, suggesting that the mass of the sixth quark is of different origin. PACS: 12.15.Ff, 11.10 Lm Published in HADRONIC...
متن کاملEffective Field Theory and Heavy Quark Physics ( 2004
These notes are based on five lectures presented at the 2004 Theoretical Advanced Study Institute (TASI) on “Physics in D ≥ 4”. After a brief motivation of flavor physics, they provide a pedagogical introduction to effective field theory, the effective weak Lagrangian, and the technology of renormalization-group improved perturbation theory. These general methods are then applied in the context...
متن کاملNew Formulation of Heavy Quark Effective Field Theory
The heavy quark effective field theory (HQEFT) containing both effective 'quark fields' and 'antiquark fields' is investigated in detail. By integrating out the effective antiquark fields, we obtain an effective Lagrangian in terms of only the effective quark fields. Such an effective Lagrangian differs from the one in the usual heavy quark effective theory (HQET) because of the inclusion of th...
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The study of quantum chromodynamics (QCD) at low temperatures and high densities is relevant for fundamental as well as applied astrophysical questions. On the fundamental side, the phase diagram of QCD at high and intermediate densities might be very complicated and its study is highly non-trivial. While heavy-ion collisions and lattice calculations are powerful tools to probe the phase struct...
متن کاملOn the Renormalization of Heavy Quark Effective Field Theory
The construction of heavy quark effective field theory (HqEFT) is extended to arbitrary order in both expansion parameters αs and 1/mq. Matching conditions are discussed for the general case, and it is verified that this approach correctly reproduces the infrared behaviour of full QCD. Choosing a renormalization scheme in the full theory fixes the renormalization scheme in the effective theory ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1975
ISSN: 0556-2821
DOI: 10.1103/physrevd.11.2178