Now showing items 1-10 of 215
Vector-like fermion and standard Higgs production at hadron colliders
(Elsevier, 1990-04-09)
Vector-like fermions are characterized by large neutral current decay rates, in particular into Higgs bosons. If they exist, their clear signals at hadron colliders open a window to Higgs detection, especially to the ...
Jet production by a gluon source in QCD
(Elsevier, 1978-12-25)
The properties of jets produced by a gluon source are examined in QCD. We give a simple derivation of the jet opening angle (up to an undetermined constant) using arguments of general applicability. At asymptotic energies, ...
Efficient algorithms for estimating the width of nearly normal distributions
(Elsevier, 1983-06-15)
Typical physics data samples often conform to Gaussian distributions with admixtures of more slowly varying backgrounds. Under such circumstances the standard deviation is known to be a poor statistical measure of distribution ...
12C(7Li, t)16O and stellar helium fusion
(Elsevier, 1978-07-31)
The reaction 12C(7Li, t)16O has been studied at E(7Li) = 34 MeV with the LASL tandem accelerator and QDDD magnetic spectrometer. Angular distributions to levels with Ex J[pi] = 1- levels, which are of great importance in ...
Cross sections for dark matter particles and implications for allowed masses, interactions, and detection
(Elsevier, 1986)
We present scattering and annihilation cross sections for a number of candidates for dark matter: heavy neutrinos, photinos, scalar-neutrinos, and higgsinos. In the mass region below about 10 GeV, annihilation cross sections ...
The 12C([alpha], n)15O and 16O([alpha], n)19Ne reactions at E[alpha] = 41 MeV
(Elsevier, 1981-06-15)
Spectra and neutron angular distributions have been obtained for the ([alpha], n) reaction on 12C and 16O to (a) determine whether with this reaction more detailed spectroscopic information can be extracted than from ...
An image intensifier-scintillator device for determination of profiles and images of weak beams of ionizing particles or X-rays
(Elsevier, 1961)
An instrument for determining the shape and intensity distribution of particle and X-ray beams has been developed using an image intensifier tube together with a bundle of filaments of scintillator. A description of the ...
Heavy particles and the [varrho] parameter in the standard model
(Elsevier, 1981-11-09)
A new formalism is presented for the calculation of the contribution [delta][varrho] to [varrho] = Mw2/Mz2cos2[theta]w from heavy particles transforming according to arbitrary representations of SU(2) x U(1). A conjecture ...
The University of Michigan cyclotron facility for research in nuclear structure
(Elsevier, 1974)
A number of improvements have been made in The University of Michigan 83" sector focused cyclotron since its original construction. The reasons for the changes and the resulting improvement in the production of stable ...
The effective potential and the renormalisation group
(Elsevier, 1993-04-26)
We discuss renormalisation-group improvement of the effective potential both in general and in the context of O(N) scalar [phi]4 and the Standard Model. In the latter case we find that absolute stability of the electroweak ...