Testing for the presence of new neutrinos and additional bosons

ANNALS OF PHYSICS210, 238-239 (1991)

Abstracts

of Papers

to Appear

in Future

Issues

for the Presence of New Neutrinos and Additional Bosom. TARANJEET CHIMERA AND BABU. School of Physics, Devi Ahilya University, Khandwa Road, Indore 452001, India.

Testing

P. RAM

We relate the observables of cfi,:e scatterings, e+e- + p +p’- and e+e- + vVyto look for the existence of new neutrinos coupling to addltional and/or standard Z-bosons. The observables in ve scattering and e+e- + v?y are sensitive to the presence of new neutrinos and the ones in e+e- + p+p- are sensitive to additional Z-bosons. Hence the relations between low energy observables of these reactions can be used to test the existence of new neutrinos coupling to standard Z-boson and/or additional Z-bosons. A way to use the observables determined from experiments conducted at high energies in testing these hypothesis is indicated. Higgs and W’ Pair Production. J. S. Wu, C. BOTTCHER,M. R. STRAYER,AND A. K. KERMAN. Center for Computationally Intensive Physics, Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831.

Coherent

Cross sections for the coherent electromagnetic production of the intermediate vector bosons and the Higgs boson in ultrarelativistic heavy-ion collisions are calculated from standard electroweak theory. The distributions of the resulting decay products are also considered. Particular attention is given to the energy rbgime of the Superconducting Supercollider and the CERN Large Hadron Collider. Wavefunctions with Arbitrary Permutational Symmetry. JACOB KATRIEL. Department of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel; AND AK~VA NOVOSELSKY. Department of Nuclear Physics, The Weizmann Institute of Science, Rehovot 76100, Israel.

Multi-cluster

We consider a system of identical particles distributed in several clusters. Each cluster is characterized by a Yamanouchi symbol specifying its permutational symmetry. A procedure for coupling the various clusters into an overall well-defined angular momentum and permutational symmetry, is presented. It is based on diagonalizing an appropriate set of single-cycle class operators of the symmetric group. The techniques for the evaluation of the necessary matrix-elements are developed. They provide interesting generalizations of the corresponding techniques for a system consisting of a single-cluster of particles. The results are immediately applicable to the study of nuclear cluster models, nuclei as quark clusters, as well as the interaction among gas-phase atomic clusters. Dynamics in the Intrinsic Light-Front Coordinates. C. ARAWNE. CERN, Geneva, Switzerland, and Universidad Simbn Bolivar, Caracas, Venezuela; AND G. RESTUCCIA AND R. TORRALBA. Departamento de Fisica, Universidad Sim6n Bolivar, Caracas, Venezuela.

Membrane

We study the dynamics of the membrane, using internal light-front (LF) coordinates. The set of constraints, although equivalent to the standard one, is different. The intrinsic LF gauge is defined. Four additional, alternative gauge-fixing conditions are analysed. Two of them polynomialize the system, whilst the other two are convenient for studying the initial-value problem. In particular, one of them is

238 0003-4916/91 $7.50 Copyright 0 1991 by Academic Press, Inc. All rights of reproduction in any form reserved.