4,286 research outputs found
Top mass dependent alpha_s^3 corrections to B-meson mixing in the MSSM
We compute the top mass dependent NLO strong interaction matching conditions
to the Delta F=2 effective Hamiltonian in the general MSSM. We study the
relevance of such corrections, comparing its size with that of previously known
NLO corrections in the limit mt->0, in scenarios with degeneracy, alignment,
and hierarchical squarks. We find that, while these corrections are generally
small, there are regions in the parameter space where the contributions to the
Wilson coefficients C1 and C4 could partially overcome the expected suppression
m_t/M_SUSY.Comment: 15 pages, 6 figure
Flavour constraints on scenarios with two or three heavy squark generations
We re-assess constraints from flavour-changing neutral currents in the kaon
system on supersymmetric scenarios with a light gluino, two heavy generations
of squarks and a lighter third generation. We compute for the first time limits
in scenarios with three heavy squark families, taking into account QCD
corrections at the next-to-leading order. We compare our limits with those in
the case of two heavy families. We use the mass insertion approximation and
consider contributions from gluino exchange to constrain the mixing between the
first and second squark generation. While it is not possible to perform a
general analysis, we assess the relevance of each kind of flavour- and
CP-violating parameters. We also provide ready to use magic numbers for the
computation of the Wilson coefficients at 2 GeV for these scenarios.Comment: 23 pages, 14 figures; v3: matches published version (contains
improvements in the presentation and clarifications
Understanding social exclusion through minimum income recipients' living conditions: proposals for a new institutional social inclusion strategy
There is a long academic and institutional trajectory that understands social exclusion as an accumulation of barriers that hinder social participation. However, stereotypes about misuse and dependency on social benefits continue to be widespread in society. Fighting poverty is the first objective of sustainable development and the UN's 2030 Agenda for Sustainable Development. Commitment is needed from institutions to disseminate real information about people living in exclusion. This study of the living conditions of Minimum Income recipients in Navarre (Spain) shows that households that stay longer in the scheme encounter serious obstacles accessing employment, including unrecognized physical and mental illnesses, are required to care for dependents, or have weak job skills. The related study was conducted through a database analysis of 14,000 benefit recipients and in-depth interviews with 20 recipients. The results show that inclusion through work continues to play a central role in the fight against social exclusion. However, this remains a difficult goal to achieve for many recipients, and employment does not always guarantee social inclusion due to harsh conditions and low salaries. This article recognizes the inclusive potential of economic benefits, since they prevent the deterioration of living conditions and favor social participation. Finally, it suggests a new institutional strategy based on two activities: designing inclusion-based activities around the real needs of poor people, and promoting the commitment of all actors and agents in society in the fight against poverty.This analysis of Navarre (SPAIN) was carried out within the framework of two research projects in which the author is a Principal Investigator: INCLUSIVE, Inclusion Policies in Spain. (CSO2014-51901-P) funded by MINECO, and the European ERSISI project: Enhancing the Right to Social Inclusion through Service Integration (VS / 2016/0209), funded by the European Commission
Search for the standard model Higgs boson in the H to ZZ to 2l 2nu channel in pp collisions at sqrt(s) = 7 TeV
A search for the standard model Higgs boson in the H to ZZ to 2l 2nu decay
channel, where l = e or mu, in pp collisions at a center-of-mass energy of 7
TeV is presented. The data were collected at the LHC, with the CMS detector,
and correspond to an integrated luminosity of 4.6 inverse femtobarns. No
significant excess is observed above the background expectation, and upper
limits are set on the Higgs boson production cross section. The presence of the
standard model Higgs boson with a mass in the 270-440 GeV range is excluded at
95% confidence level.Comment: Submitted to JHE
Combined search for the quarks of a sequential fourth generation
Results are presented from a search for a fourth generation of quarks
produced singly or in pairs in a data set corresponding to an integrated
luminosity of 5 inverse femtobarns recorded by the CMS experiment at the LHC in
2011. A novel strategy has been developed for a combined search for quarks of
the up and down type in decay channels with at least one isolated muon or
electron. Limits on the mass of the fourth-generation quarks and the relevant
Cabibbo-Kobayashi-Maskawa matrix elements are derived in the context of a
simple extension of the standard model with a sequential fourth generation of
fermions. The existence of mass-degenerate fourth-generation quarks with masses
below 685 GeV is excluded at 95% confidence level for minimal off-diagonal
mixing between the third- and the fourth-generation quarks. With a mass
difference of 25 GeV between the quark masses, the obtained limit on the masses
of the fourth-generation quarks shifts by about +/- 20 GeV. These results
significantly reduce the allowed parameter space for a fourth generation of
fermions.Comment: Replaced with published version. Added journal reference and DO
Belle II Technical Design Report
The Belle detector at the KEKB electron-positron collider has collected
almost 1 billion Y(4S) events in its decade of operation. Super-KEKB, an
upgrade of KEKB is under construction, to increase the luminosity by two orders
of magnitude during a three-year shutdown, with an ultimate goal of 8E35 /cm^2
/s luminosity. To exploit the increased luminosity, an upgrade of the Belle
detector has been proposed. A new international collaboration Belle-II, is
being formed. The Technical Design Report presents physics motivation, basic
methods of the accelerator upgrade, as well as key improvements of the
detector.Comment: Edited by: Z. Dole\v{z}al and S. Un
Las políticas de inclusión regionales en España: nuevos enfoques y claves para su eficacia
Las políticas de inclusión engloban programas y prestaciones de distinto recorrido y naturaleza. Esta diversidad ha sido un obstáculo para profundizar y analizar de manera comparada estas acciones, no solo en España, sino también a nivel europeo. La crisis económica y del empleo evidencia la ineficacia de muchas de estas políticas. Este artículo presenta los nuevos enfoques que buscan la adecuación de estas acciones y las claves para su eficacia. Para ello se toman como estudio de caso cinco comunidades autónomas de España. Los resultados que se presentan son parte del proyecto INCLUSIVE (CSO2014-51901-P) financiado por MINECO.Inclusion policies involve programmes and services of different types and nature. This diversity has been an obstacle to analyze in a comparative way these actions, not only in Spain but also in Europe. The economic and employment crisis shows the ineffectiveness of many of these policies. This article presents new approaches that seek to adapt these actions and are key to their effectiveness. For this, five autonomous regions of Spain will be taken as a case study. The results presented are part of the INCLUSIVE project (CSO2014-51901-P) funded by MINECO.This work was supported by the Spanish Ministry of Economy and Competitiveness under (CSO2014-51901-P)
The role of the Public University of Navarre in achieving the 1st SDG for the end of poverty
The end of poverty is the first of the 17 sustainable development goals of the United Nations. Universities are strategic spaces for promoting the SDGs, from training, research, and outreach capacity to implementing sustainable actions, helping to reduce inequalities and, significantly, promoting sustainable cities and communities. This article aims to answer how the Public University of Navarre contributes to promoting the 1st SDG, what mechanisms for the end of poverty endorses in its territory, and what can we learn from these experiences. To this end, a case study has been carried out based on qualitative techniques. This work analyzes the strategies implemented, such as incorporating social clauses for responsible recruiting, the development of applied research and teaching or network participation. From this example, some engaging lessons will be extracted to address this issue in other contexts, promoting their consolidation and identifying the obstacles that may hinder their spread
Performance of the CMS Cathode Strip Chambers with Cosmic Rays
The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device
in the CMS endcaps. Their performance has been evaluated using data taken
during a cosmic ray run in fall 2008. Measured noise levels are low, with the
number of noisy channels well below 1%. Coordinate resolution was measured for
all types of chambers, and fall in the range 47 microns to 243 microns. The
efficiencies for local charged track triggers, for hit and for segments
reconstruction were measured, and are above 99%. The timing resolution per
layer is approximately 5 ns
Exclusion and neoliberalism in the education system: socio-educational intervention strategies for an inclusive education system
Not only numerous academic and empirical studies recognise the educational factor as decisive on life and work trajectories, but also its integrating potential and role in the promotion of social cohesion are widely acknowledged. The diversity of current societies, the economic situation and the impact of neoliberal policies represent new challenges for an inclusive education that should maintain its integrating potential, especially in countries such as Spain. This opens two unavoidable approaches and reflection spaces. The first one, regarding the fight against social inequality and the second one, focused on the construction of a socially sustainable educational model against the hegemonic neoliberal impact. Both levels of reflection are the pillars of an inclusive education system. This article combines an analytical and reflective approach to these issues recommending a series of intervention experiences and strategies for the construction of an inclusive educational model
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