arXiv subjects

Kenneth Lane

Publications and source records attributed to Kenneth Lane.

63 records · Page 4Linked to original sources

arXiv1995

Color-Singlet Technipions at the Tevatron

I discuss production and detection at the Tevatron $\pbarp$ collider of pairs of light ($\mpi = 100$--$200\,\gev$) color--singlet technipions that are expected in all nonminimal models of technicolor. Gluon fusion production rates can be as large as $\CO(1\,\pb)$. Topcolor--assisted technicolor is required to prevent top quarks from decaying as $t \ra \tpip b$. An intriguing consequence of this is that the decays $\tpip \ra τ^+ ν_τ$, $c \ol s$ and $\tpiz \ra b \ol b$ may also be suppressed so that $\tpip \ra W^+ γ$ and $\tpiz \ra γγ$ are significant. These modes have spectactular signatures at the Tevatron.

hep-ph↗

arXiv1995

Natural Topcolor--Assisted Technicolor

We construct a prototype of topcolor--assisted technicolor in which, although both top and bottom quarks acquire some mass from extended technicolor, strong $U(1)$ couplings of technifermions are isospin symmetric and all gauge anomalies vanish. There is a mechanism for mixing between the light and heavy generations and there need be no very light pseudo--Goldstone bosons.

hep-ph↗

arXiv1995

Technicolor

Technicolor, with extended technicolor, is the theory of dynamical electroweak and flavor symmetry breaking at energies far below the Planck scale. To motivate it, I describe the most important difficulties of the standard electroweak model of symmetry breaking by elementary scalar bosons. I then tell how technicolor deals with these difficulties in a way that is both technically and physically natural. Finally, I discuss the problems of technicolor, both past and present. (This is the written version of an invited talk given at the International Conference on the History of Original Ideas and Basic Discoveries in Particle Physics, Erice, Sicily, 29 July--4 August 1994.)

hep-ph↗

arXiv1995

Top Quarks and Flavor Physics

Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top quarks at the Tevatron Collider is the best probe of this physics until the Large Hadron Collider turns on in the next century. I discuss aspects of the mass and angular distributions that can be measured in $\ttb$ production with the coming large data samples from the Tevatron and even larger ones from the LHC.

hep-ph↗

arXiv1994

Technicolor and Precision Tests of the Electroweak Interactions

Precision electroweak measurements have been claimed to eliminate almost all models of technicolor. We show that the assumptions made to calculate the oblique parameters $S$,$T$,$U$ apply to QCD--like technicolor models which were ruled out long ago on much firmer grounds. These assumptions are invalid in modern ``walking'' technicolor models.

hep-ph↗

arXiv1994

Top-Production and Flavor Physics--The Talk

Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top quarks at the Tevatron Collider is the most incisive probe of this physics until the Large Hadron Collider turns on in the next century. In this talk I discuss how moments of the $\ttb$ invariant mass distribution can be used to distinguish among standard and alternative mechanisms of $\ttb$ production.

hep-ph↗

arXiv1994

Top-Quark Production and Flavor Physics

Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top quarks at the Tevatron Collider is the best probe of this physics until the Large Hadron Collider turns on in the next century. I will discuss aspects of the mass and angular distributions that can be measured in $\ttb$ production with the coming large data samples from the Tevatron and even larger ones from the LHC.

hep-ph↗

arXiv1994

An introduction to technicolor

In these lectures we present the motivation for dynamical electroweak symmetry breaking and its most popular realization, technicolor. We introduce the basic ideas of technicolor and its companion theory of flavor, extended technicolor. We review the classical theory of technicolor, based on naive scaling from quantum chromodynamics, and discuss the classical theory's fatal flaws. Finally, we describe the principal attempt to correct these flaws, the theory of walking technicolor.

hep-ph↗

arXiv1994

Multiscale Technicolor and Top Production

Pair-production of heavy top quarks at the Tevatron Collider is significantly enhanced by the color--octet technipion, $η_T$, occurring in multiscale models of walking technicolor. We discuss $\bar tt$ rates for $m_t = 170$ GeV and $M_{η_T} = 400-500$ GeV. Multiscale models also have color--octet technirho states in the mass range 200-600 GeV that appear as resonances in dijet production and technipion pair--production.

hep-ph↗