Quarks and leptons beyond the third generation
نویسندگان
چکیده
منابع مشابه
Quarks and Leptons Beyond the Third Generation
The possibility of additional quarks and leptons beyond the three generations already established is discussed. The make-up of this Report is (I) Introduction: the motivations for believing that the present litany of elementary fermions is not complete; (II) Quantum Numbers: possible assignments for additional fermions; (III) Masses and Mixing Angles: mass limits from precision electroweak data...
متن کاملJuly 1998 IFP - 759 - UNC Quarks and Leptons Beyond the Third Generation
The possibility of additional quarks and leptons beyond the three generations already established is discussed. The make-up of this Report is (I) Introduction: the motivations for believing that the present litany of elementary fermions is not complete; (II) Quantum Numbers: possible assignments for additional fermions; (III) Masses and Mixing Angles: mass limits from precision electroweak data...
متن کاملScales of mass generation for quarks, leptons, and majorana neutrinos.
We study 2-->n inelastic fermion-(anti)fermion scattering into multiple longitudinal weak gauge bosons and derive universal upper bounds on the scales of fermion mass generation by imposing unitarity of the S matrix. We place new upper limits on the scales of fermion mass generation, independent of the electroweak symmetry breaking scale. Strikingly, we find that the strongest 2-->n limits fall...
متن کاملHow Many Quarks and Leptons ?
There are eight quarks in each family and there are three families of quarks i.e. c, b, t. Also, we propose similar structure for leptons. The nature of strong force is named as ‘third order electroweak’.
متن کاملTriplicity of Quarks and Leptons
Quarks come in three colors and have electric charges in multiples of one-third. There are also three families of quarks and leptons. Whereas the first two properties can be understood in terms of unification symmetries such as SU(5), SO(10), or E6, why there should only be three families remains a mystery. I propose how all three properties involving the number three are connected in a fivefol...
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: Physics Reports
سال: 2000
ISSN: 0370-1573
DOI: 10.1016/s0370-1573(99)00095-2