39,693 research outputs found
A Proactive Approach to Womens Concerns: Womens Longevity Groups and Funds
With the exception of ten countries in the world, according to the World Health Organization's 2005 report, women outlive men. In the United States, women outlive men by 5.3 years. Although long life is an advantage, there are major consequences that must be understood and dealt with, especially in these transitional times in the lives of women. Women are still underpaid for comparable positions, uncompensated for their caregiving and kin-keeping activities, including, notably, the rearing of children. Moreover, as is characteristic of both men and women, there is the tendency to defer, if not deny, the issues that confront one as one grows older
Constructing an understanding of mind : the development of children's social understanding within social interaction
Theories of children's developing understanding of mind tend to emphasize either individualistic processes of theory formation, maturation, or introspection, or the process of enculturation. However, such theories must be able to account for the accumulating evidence of the role of social interaction in the development of social understanding. We propose an alternative account, according to which the development of children's social understanding occurs within triadic interaction involving the child's experience of the world as well as communicative interaction with others about their experience and beliefs (Chapman 1991; 1999). It is through such triadic interaction that children gradually construct knowledge of the world as well as knowledge of other people. We contend that the extent and nature of the social interaction children experience will influence the development of children's social understanding. Increased opportunity to engage in cooperative social interaction and exposure to talk about mental states should facilitate the development of social understanding. We review evidence suggesting that children's understanding of mind develops gradually in the context of social interaction. Therefore, we need a theory of development in this area that accords a fundamental role to social interaction, yet does not assume that children simply adopt socially available knowledge but rather that children construct an understanding of mind within social interaction
Singlet Model Interference Effects with High Scale UV Physics
One of the simplest extensions of the Standard Model (SM) is the addition of
a scalar gauge singlet, S. If S is not forbidden by a symmetry from mixing with
the Standard Model Higgs boson, the mixing will generate non-SM rates for Higgs
production and decays. In general, there could also be unknown high energy
physics that generates additional effective low energy interactions. We show
that interference effects between the scalar resonance of the singlet model and
the effective field theory (EFT) operators can have significant effects in the
Higgs sector. We examine a non- symmetric scalar singlet model and
demonstrate that a fit to the 125 GeV Higgs boson couplings and to limits on
high mass resonances, S, exhibit an interesting structure and possible large
cancellations of effects between the resonance contribution and the new EFT
interactions, that invalidate conclusions based on the renormalizable singlet
model alone.Comment: 18 pages, 7 figures; revised to emphasize the points of general
interest for heavy resonance searches at the LH
Gauge Dressing of 2D Field Theories
By using the gauge Ward identities, we study correlation functions of gauged
WZNW models. We show that the gauge dressing of the correlation functions can
be taken into account as a solution of the Knizhnik-Zamolodchikov equation. Our
method is analogous to the analysis of the gravitational dressing of 2D field
theories.Comment: 13 pages, Late
Exploring Resonant di-Higgs production in the Higgs Singlet Model
We study the enhancement of the di-Higgs production cross section resulting
from the resonant decay of a heavy Higgs boson at hadron colliders in a model
with a Higgs singlet. This enhancement of the double Higgs production rate is
crucial in understanding the structure of the scalar potential and we determine
the maximum allowed enhancement such that the electroweak minimum is a global
minimum. The di-Higgs production enhancement can be as large as a factor of ~
18 (13) for the mass of the heavy Higgs around 270 (420) GeV relative to the
Standard Model rate at 14 TeV for parameters corresponding to a global
electroweak minimum.Comment: 25 pages, 14 figures. Version approved for publication. Discussion of
Z2 symmetric limit improved and references adde
Top Partners and Higgs Boson Production
The Higgs boson is produced at the LHC through gluon fusion at roughly the
Standard Model rate. New colored fermions, which can contribute to
, must have vector-like interactions in order not to be in
conflict with the experimentally measured rate. We examine the size of the
corrections to single and double Higgs production from heavy vector-like
fermions in singlets and doublets and search for regions of parameter
space where double Higgs production is enhanced relative to the Standard Model
prediction. We compare production rates and distributions for double Higgs
production from gluon fusion using an exact calculation, the low energy theorem
(LET), where the top quark and the heavy vector-like fermions are taken to be
infinitely massive, and an effective theory (EFT) where top mass effects are
included exactly and the effects of the heavy fermions are included to . Unlike the LET, the EFT gives an extremely accurate description
of the kinematic distributions for double Higgs production.Comment: 37 pages, 11 figures. Minor changes to Figs. 8-1
- …