2,689,173 research outputs found
Background effects on reconstructed WIMP couplings
In this talk, I presented effects of small, but non-negligible unrejected
background events on the determinations of WIMP couplings/cross sections.Comment: 4 pages, 5 eps figures, to appear in the proceedings of the 12th
International Conference on Topics in Astroparticle and Underground Physics
(TAUP 2011), September 5-9, 2011, Munich, German
An improved generalized inverse algorithm for linear inequalities and its applications
Iterative, two-class algorithm for linear inequalitie
Concentric tubes cold-bonded by drawing and internal expansion
Metal tubes bonded together without heat application or brazing materials retain strength at elevated temperatures, and when subjected to constant or cyclic temperature gradients. Combination drawing and expansion process produces residual tangential tensile stress in the outer tube and tangential compressive stress in the inner tube
CP violation conditions in N-Higgs-doublet potentials
Conditions for CP violation in the scalar potential sector of general
N-Higgs-doublet models (NHDMs) are analyzed from a group theoretical
perspective. For the simplest two-Higgs-doublet model (2HDM) potential, a
minimum set of conditions for explicit and spontaneous CP violation is
presented. The conditions can be given a clear geometrical interpretation in
terms of quantities in the adjoint representation of the basis transformation
group for the two doublets. Such conditions depend on CP-odd pseudoscalar
invariants. When the potential is CP invariant, the explicit procedure to reach
the real CP-basis and the explicit CP transformation can also be obtained. The
procedure to find the real basis and the conditions for CP violation are then
extended to general NHDM potentials. The analysis becomes more involved and
only a formal procedure to reach the real basis is found. Necessary conditions
for CP invariance can still be formulated in terms of group invariants: the
CP-odd generalized pseudoscalars. The problem can be completely solved for
three Higgs-doublets.Comment: RevTeX4 used. Minor modifications, in particular, the parameter
counting of . v3: Eqs.(28)-(31) correcte
Exposing the dressed quark's mass
This snapshot of recent progress in hadron physics made in connection with
QCD's Dyson-Schwinger equations includes: a perspective on confinement and
dynamical chiral symmetry breaking (DCSB); a pre'cis on the physics of
in-hadron condensates; results on the hadron spectrum, including
dressed-quark-core masses for the nucleon and Delta, their first radial
excitations, and the parity-partners of these states; an illustration of the
impact of DCSB on the electromagnetic pion form factor, thereby exemplifying
how data can be used to chart the momentum-dependence of the dressed-quark mass
function; and a prediction that F_1^{p,d}/F_1^{p,u} passes through zero at
Q^2\approx 5m_N^2 owing to the presence of nonpointlike scalar and axial-vector
diquark correlations in the nucleon.Comment: 10 pages, 4 figures, 2 tables. Contribution to the Proceedings of the
4th Workshop on Exclusive Reactions at High Momentum Transfer, Thomas
Jefferson National Accelerator Facility Newport News, Virginia, 18-21 May
201
Resource consents - intangible fixed assets? Yes, but, too difficult by far!
Recent international attempts to draft an accounting standard (IAS38) which establishes the most
widely acceptable treatment for intangible assets have sparked debate among standard setters,
practising accountants and media analysts. Contentious issues include differing treatment for
internally and externally generated intangible fixed assets, and the requirement for the existence
of a ready market for the exchange of intangible assets.
A further question has been identified, that of whether the ‘right to do something’, as in
permission to act, is in itself an intangible asset and if so how should it be treated. An example of
this is resource consents issued under the Resource Management Act 1991. The aim of this
research was to investigate the nature of resource consents as intangible assets according to
ICANZ disclosure and recognition standards and to determine the level of disclosure
practised by companies listed on the New Zealand Stock Exchange.
Disclosure of resource consent details as non-financial information would provide a significant
proportion of the benefits involved in disclosing this class of asset while limiting the costs
involved in the production of the information. We conclude that the details of resource
consents held should be disclosed in the annual report as additional non-financial information,
or as a separate schedule of resource consents held in the notes to the financial statements
as per FRS1. This view is not addressed by the requirements of IAS38 or ED87 as this 'class
of intangible assets' is not discussed at all. However, it can be argued that the omission of
resource consents and other similar intangibles is contrary to the spirit of the true and fair
view requirement of the Financial Reporting Act and Generally Accepted Accounting
Principles (GAAP)
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