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The present volume is based on the proceedings of the 9th INFN ELOISATRON Project workshop held at the Ettore Majorana Centre for Scien tific Culture, Erice-Trapani, Italy, in the period July 15-26, 1989. The topic of this workshop was: Higgs Particles - Physics Issues and Experimental Searches in High Energy Collisions and it was attended by over forty participants. The concept of Higgs mechanism, like most other scientific ideas, evolved over several years, with many independent and important contribu tions in the sixtees to which Peter Higgs has referred in his historical account in these proceedings. However, it was not until 1967, paraphra sing Weinberg, that "the right ideas were applied to the right problem"! Higgs mechanism, i.e. spontaneous breaking of local gauge symmetries with scalar particles becoming the longitudinal degrees of freedom of {other wise) massless vector bosons and hence making them massive, is now an integral part of the standard {Glashow-Salam Weinberg) theory of electro weak interactions. Fortunately for us, the structure of the standard theory prevents at least one scalar field from being transformed away. This is the Higgs particle in the standard theory - whose physics and search strategies are the subject of this workshop.
List of contents
A Retrospective.- Inventing an Elementary Particle.- 1 - Theoretical issues.- Triviality and Higgs Mass Bounds: A Status Report.- Lattice Studies of the Higgs System.- Scalar Particles in Superstring Models.- A Relation Between the Scales of Weak and Strong Interactions.- Non-Minimal Higgs Bosons: Theory and Phenomenology.- Axions and Dilatons: The Search for Very Light Scalar Particles.- Higgs Particles and Dark Matter Searches.- Hadronic and Muonic Branching Ratios for Decays of Light Higgs Bosons.- Ruling Out the Light Higgs Boson by Kaon Decay.- Disposing of the Light Higgs Boson: Theoretical Issues inK ? ? H.- Searches for Light Scalar Particles in K Meson Decays.- Higgs Boson(s) and Rare B Processes: Theoretical Expectations.- Searches for Higgs Particles in the Decays of Open and Hidden Beauty.- III - Higgs Searches in Hadronic Collisions.- Experimental Searches for the Higgs Particle in High Energy Collisions.- Testing the Higgs Mechanism at High Energy Colliders.- Probing Iliggs Bosons / Electrowcak Symmetry Breaking in Purely Leptonic Channels at Hadron Collidcrs.- Vector Boson Scattering at Future Colliders.- Testing the Higgs Boson Sector and the Three Vector Boson Coupling with Electrowcak Boson Pairs.- IV - Riggs Searches in e+e- Annihilation.- Search Strategies for Riggs Bosons at High Energy c+c- Collidcrs.- V - Present Experimental Results.- First Results from the SLAC Linear Collider and MARK II Detcctor.- Results from the LEP and SLC Colliders - An Update.- Recent Results from the CDF Experiment at the TeVatron Proton- Antiproton Collider (The CDF Collaboration).- Top Search in UA1.- Participants.
