Quark masses: An environmental impact statement
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چکیده
منابع مشابه
Quark masses: An environmental impact statement
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متن کاملQuark Masses: An Environmental Impact Statement by
We investigate how the requirement that organic chemistry be possible constrains the values of the quark masses. Specifically, we choose a slice through the parameter space of the Standard Model in which quark masses vary so that as many as three quarks play a role in the formation of nuclei, while keeping fixed the average mass of the two lightest baryons (in units of the electron mass) and th...
متن کاملSupplemental Environmental Impact Statement
The Gulf of Alaska and Bering Sea Aleutian Islands groundfish fisheries have been managed under fishery management plans since 1978 and 1981, respectively. The range of the Steller sea lion overlaps the waters where the fisheries are conducted. Under the Endangered Species Act, Steller sea lion west of Cape Suckling, Alaska, are listed as endangered; east of Cape Suckling they are listed as thr...
متن کاملUp Quark Masses from Down Quark Masses
The quark and charged lepton masses and the angles and phase of the CKM mixing matrix are nicely reproduced in a model which assumes O(3) ⊗ O(3) flavour symmetry broken by the v.e.v.’s of fields in its bi-fundamental representation. The relations among the quark mass eigenvalues, mu/mc ≈ mc/mt ≈ m2d/m2s ≈ m2s/m2b ≈ Λ2GUT/M2 Pl, follow from the broken flavour symmetry. Large tanβ is required whi...
متن کاملAn Interesting Fitting of Quark Masses
In this note we show an empirical formula of quark masses, which is found by implementing a least squares fit. In this formula the measured QCD coupling is almost a ”best fitting coupling”. There are many papers working on the masses of quarks, in theory or in experiment. For theory, the difficulty is, masses of quarks can not been determined by first principle. The masses of known six quarks c...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2009
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.79.065014