Thirty years of precision electroweak physics

Abstract

We discuss the development of the theory of electroweak radiative corrections and its role in testing the Standard Model, predicting the top quark mass, constraining the Higgs boson mass, and searching for deviations that may signal the presence of new physics.

Search for Electroweak Single Top Quark Production in 1.96 TeV Proton-Antiproton Collisions

“…The electroweak unification explains the existence of the W and Z bosons and the photon and the process of symmetry breaking allows the W and Z to acquire mass [11]. The predictions made on the basis of the electroweak theory have been verified by experiments with very high precision [12]. when interacting through the charged weak interaction (exchange of a W ± boson).…”

Semi-empirical operator for the self-interaction masses of finite-size leptons and quarks

“…Presumably the quantum number S and the base factor (41/10) stem from the self-similar geometrical size change of the leptons and quarks from generation to generation, which effects enhancement or diminution of the self-interaction energies in the manner discussed qualitatively by Goldhaber [1]. Finally, the order index (2 − P 2 ) appears as the overall exponent on the square bracket in (8), with the self-interaction energies featuring a dominant electromagnetic-strong term proportional to Q 2 for P 2 = 1 structural states (e, µ, τ, d, s, b) and Q 4 for P 2 = 0 structural states (u, c, t with Q = 0 for the ν's).…”

“…The present letter reports a semi-empirical operator for the self-energy generated masses of finite-size leptons and quarks, a self-interaction mass operator which acts as the rest-frame Hamiltonian for the structural entities themselves. Basic to the formulation are the empirical regularities and systematics in the charged lepton masses, in the quark pole masses, and in the neutrino mass eigenvalues [3][4][5][6][7][8][9]. The following projection operator theorem pertaining to the B and Q fermion quantum numbers serves as a prelude to the formulation of the self-interaction mass operator.…”

“…Also appearing in ( 8) is the integer ratio (41/10), a scaling factor already encountered in a more limited context by Sirlin [4]. The size index S, appearing in the prefactor (2|S| + 1) −1 and as a scaling exponent in (8), relates the size-associated enhancement or diminution of the self-energies by the positive or negative integer eigenvalues of S; the base factor for this sizeassociated enhancement or diminution is (41/10) for both the electromagnetic-strong and the weak self-interaction energies.…”

Indirect search for lepton flavor violation at CERN LEP via doubly charged bileptons

“…At LEP, fermion pair production is the unique reaction to test the standard model at loop correction level [15]. Therefore one needs precision calculations including QED and weak corrections for reliable comparison with experiments.…”