Z′ in the 3-3-1 model
نویسندگان
چکیده
منابع مشابه
On the Diophantine Equation x^6+ky^3=z^6+kw^3
Given the positive integers m,n, solving the well known symmetric Diophantine equation xm+kyn=zm+kwn, where k is a rational number, is a challenge. By computer calculations, we show that for all integers k from 1 to 500, the Diophantine equation x6+ky3=z6+kw3 has infinitely many nontrivial (y≠w) rational solutions. Clearly, the same result holds for positive integers k whose cube-free part is n...
متن کامل(Z)-2-(3-methoxybenzylidene)-1-azabicyclo[2.2.2]octan-3-one.
The crystal structure of the title compound, C(15)H(17)NO(2), contains two nearly identical but crystallographically independent molecules, each with a double bond connecting an azabicyclic ring system to a 3-methoxybenzylidene moiety. The space group is triclinic P-1. The benzene ring is twisted by 18.44 (5) and 22.35 (4) degrees with respect to the plane of the double bond connected to the az...
متن کاملZ – Z ′ mixing and oblique corrections in an SU ( 3 ) × U ( 1 ) model
We address the effects of the new physics predicted by the SU(3)L×U(1)X model on the precision electroweak measurements. We consider both Z–Z ′ mixing and one-loop oblique corrections, using a combination of neutral gauge boson mixing parameters and the parameters S and T . At tree level, we obtain strong limits on the Z–Z ′ mixing angle, −0.0006 < θ < 0.0042 and find MZ2 > 490GeV (both at 90% ...
متن کامل(Z)-1-[(3-Cyanophenyl)iminiomethyl]-2-naphtholate
The title compound, C(18)H(12)N(2)O, crystallizes in a zwitterionic form. The dihedral angle between the planes of the benzene ring and naphthalene ring system is 13.95 (5)°. An intra-molecular N-H⋯O inter-action results in the formation of a planar six-membered ring, which is oriented at dihedral angles of 13.50 (4) and 4.49 (4)° with respect to the benzene ring and naphthalene ring system, re...
متن کامل(Z)-3-Hydrazinylidene-1-phenylindolin-2-one
The indoline fused-ring system of the title Schiff base, C(14)H(11)N(3)O, is planar (r.m.s. deviation = 0.005 Å); the phenyl substituent is aligned at 66.5 (1)° with respect to the ring system. The amino -NH(2) unit forms an intra-molecular hydrogen bond with the carbonyl O atom. Mol-ecules are connected by an inter-molecular N-H⋯N hydrogen bond, generating a zigzag chain that runs along the sh...
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 Letters B
سال: 1997
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)00745-4