pinecone/core-2020-05-10-deduplication huggingface dataset:
Search for a light charged Higgs boson decaying to cs¯ in pp collisions at √s=8 TeV

A search for a light charged Higgs boson, originating from the decay of a top quark and subsequently decaying into a charm quark and a strange antiquark, is presented. The data used in the analysis correspond to an integrated luminosity of 19.7 fb−1 recorded in proton-proton collisions at (formula presented.) TeV by the CMS experiment at the LHC. The search is performed in the process tt¯→W±bH∓b¯(formula presented.), where the W boson decays to a lepton (electron or muon) and a neutrino. The decays lead to a final state comprising an isolated lepton, at least four jets and large missing transverse energy. No significant deviation is observed in the data with respect to the standard model predictions, and model-independent upper limits are set on the branching fraction ℬt→(formula presented.), ranging from 1.2 to 6.5% for a charged Higgs boson with mass between 90 and 160 GeV, under the assumption that ℬH+→(formula presented.)[Figure not available: see fulltext.] © 2015, The Author(s).The Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authorit
Moduli stabilization, large-volume dS minimum without D3-bar branes, (non-)supersymmetric black hole attractors and two-parameter Swiss cheese Calabi-Yau's

We consider issues of moduli stabilization and "area codes" for type II flux compactifications, and the "Inverse Problem" and "Fake Superpotentials" for extremal (non)supersymmetric black holes in type II compactifications on (orientifold of) a compact two-parameter Calabi-Yau expressed as a degree-18 hypersurface in WCP^4[1,1,1,6,9] which has multiple singular loci in its moduli space. We argue the existence of extended "area codes" [1] wherein for the same set of large NS-NS and RR fluxes, one can stabilize all the complex structure moduli and the axion-dilaton modulus (to different sets of values) for points in the moduli space away as well as near the different singular conifold loci leading to the existence of domain walls. By including non-perturbative alpha' and instanton corrections in the Kaehler potential and superpotential [2], we show the possibility of getting a large-volume non-supersymmetric (A)dS minimum. Further, using techniques of [3] we explicitly show that given a set of moduli and choice of a gauge(the superpotential) corresponding to an extremal black hole, one can actually work out the corresponding charges (of the extremal black hole) - the so-called "inverse problem". We also show the existence of "fake superpotentials" [4] corresponding to non-BPS extremal black-hole solutions corresponding to the aforementioned Calabi-Yau three-fold. The chosen Calabi-Yau has been of relevance also from the point of other studies of stabilization of the Kaehler moduli via nonperturbative instanton contributions [5] and the possibility of getting non-supersymmetric AdS vacua (and their subsequent dS-uplifts) using (alpha')^3 corrections to the Kaehler potential [6,7,8]
Testing a belief-based intervention encouraging sun safety among adolescents in a high risk area

Objective. To provide a preliminary test of a Theory of Planned Behavior (TPB) belief-based intervention to increase adolescents’ sun protective behaviors in a high risk area, Queensland, Australia. \ud
Methods. In the period of October-November, 2007 and May-June, 2008, 80 adolescents (14.53 ± 0.69 years) were recruited from two secondary schools (one government and one private) in Queensland after obtaining student, parental, and school informed consent.  Adolescents were allocated to either a control or intervention condition based on the class they attended. The intervention comprised three, one hour in-school sessions facilitated by Cancer Council Queensland employees with sessions covering the belief basis of the TPB (i.e.,  behavioral, normative, and control [barrier and motivator] sun-safe beliefs). Participants completed questionnaires assessing sun-safety beliefs, intentions, and behavior pre- and post-intervention. Repeated Measures Multivariate Analysis of Variance was used to test the effect of the intervention across time on these constructs.\ud
Results. Students completing the intervention reported stronger sun-safe normative and motivator beliefs and intentions and the performance of more sun-safe behaviors across time than those in the control condition. \ud
Conclusion. Strengthening beliefs about the approval of others and motivators for sun protection may encourage sun-safe cognitions and actions among adolescents. \u
Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton collisions at root s=7 TeV with the ATLAS detector

ATLAS Collaboration member: Paul Douglas Jackson of School of Chemistry and Physics, University of Adelaide, Adelaide, Australia.Many extensions of the Standard Model posit the existence of heavy particles with long lifetimes. In this Letter, results are presented of a search for events containing one or more such particles, which decay at a significant distance from their production point, using a final state containing charged hadrons and an associated muon. This analysis uses a data sample of proton–proton collisions at √s=7 TeV corresponding to an integrated luminosity of 4.4 fb⁻¹ collected in 2011 by the ATLAS detector operating at the Large Hadron Collider. Results are interpreted in the context of R-parity violating supersymmetric scenarios. No events in the signal region are observed and limits are set on the production cross section for pair production of supersymmetric particles, multiplied by the square of the branching fraction for a neutralino to decay to charged hadrons and a muon, based on the scenario where both of the produced supersymmetric particles give rise to neutralinos that decay in this way. However, since the search strategy is based on triggering on and reconstructing the decay products of individual long-lived particles, irrespective of the rest of the event, these limits can easily be reinterpreted in scenarios with different numbers of long-lived particles per event. The limits are presented as a function of neutralino lifetime, and for a range of squark and neutralino masses.ATLAS Collaboratio
Measurement of the cross section for electroweak production of $Zγ$ in association with two jets and constraints on anomalous quartic gauge couplings in proton–proton collisions at $\sqrt{s} = 8$ TeV

A measurement is presented of the cross section for the electroweak production of a Z boson and a photon in association with two jets in proton–proton collisions at $\sqrt{s} = 8$ TeV. The Z bosons are identified through their decays to electron or muon pairs. The measurement is based on data collected with the CMS detector corresponding to an integrated luminosity of 19.7 $fb^{−1}$. The electroweak contribution has a significance of 3.0 standard deviations, and the measured fiducial cross section is $1.86^{+0.90}_{−0.75}(stat)^{+0.34}_{−0.26}(syst)±0.05(lumi)$ fb, while the summed electroweak and quantum chromodynamic total cross section in the same region is observed to be $5.94^{+1.53}_{−1.35}(stat)^{+0.43}_{−0.37}(syst)±0.13(lumi)$ fb. Both measurements are consistent with the leading-order standard model predictions. Limits on anomalous quartic gauge couplings are set based on the $Zγ$ mass distribution
Black hole microstates in AdS4 from supersymmetric localization

Abstract: This paper addresses a long standing problem, the counting of the microstates of supersymmetric asymptotically AdS black holes in terms of a holographically dual field theory. We focus on a class of asymptotically AdS4static black holes preserving two real supercharges which are dual to a topologically twisted deformation of the ABJM theory. We evaluate in the large N limit the topologically twisted index of the ABJM theory and we show that it correctly reproduces the entropy of the AdS4black holes. An extremization of the index with respect to a set of chemical potentials is required. We interpret it as the selection of the exact R-symmetry of the superconformal quantum mechanics describing the horizon of the black hole
DISTANCE AND PROPER MOTION MEASUREMENT OF WATER MASERS IN SHARPLESS 269 IRS 2w

We present astrometric analysis of archival data of water masers in the star-forming region Sharpless 269 (S269) IRS 2w, observed with the VLBI Exploration of Radio Astrometry. An annual parallax of one of the bright maser features in this region was previously reported to be 0.189 ± 0.008 milliarcsecond (mas) using part of the same archival data as we used. However, we found that this maser feature is not the best to represent the annual parallax to S269 IRS 2w because the morphology is remarkably elongated in the east–west direction. For this study we have selected another maser feature showing simpler morphology. This makes the new annual parallax estimate more credible. Our newly obtained annual parallax is 0.247 ± 0.034 mas, corresponding to 4.05[+0.65 -0.49] kpc. This value is well consistent with the 3.7–3.8 kpc obtained using the kinematic distance estimates and photometric distance modulus. We considered two hypotheses for the water-maser spatial distribution, a bipolar outflow and an expanding ring, in a kinematic model fitting analysis with a radially expanding flow. At this stage, any conclusions about the systemic proper motion could not be drawn from the kinematic analysis. Alternatively, we evaluated the mean proper motion to be (0.39 ± 0.92, -1.27 ± 0.90) mas yr^-1 eastward and northward, respectively, from the obtained proper motions of the detected water-maser features. The newly obtained annual parallax and mean proper motion give the peculiar motion of S269 IRS 2w to be (U_s, V_s, W_s) of (8 ± 6, -21 ± 17, 1 ± 18) km s^-1
Another set of infinitely many exceptional (X(l)) Laguerre polynomials

We present a new set of infinitely many shape invariant potentials and the corresponding exceptional (X-l) Laguerre polynomials. They are to supplement the recently derived two sets of infinitely many shape invariant thus exactly solvable potentials in one-dimensional quantum mechanics and the corresponding X(l) Laguerre and Jacobi polynomials [S. Odake, R. Sasaki, Phys. Lett. B 679 (2009) 414]. The new X(l) Laguerre polynomials and the potentials are obtained by a simple limiting procedure from the known X(l) Jacobi polynomials and the potentials, whereas the known X(l) Laguerre polynomials and the potentials are obtained in the same manner from the mirror image of the known X(l) Jacobi polynomials and the potentials
Periodic formation and propagation of double layers in the expanding chamber of an inductive discharge operating in Ar/SF₆ mixtures

It has previously been shown [Tuszewski et al., Plasma Sources Sci. Technol.12, 396 (2003)] that inductive discharges in electronegative gases are subject to two types of instability: the sourceinstability related to the E to H transition and a transport instability, occurring downstream when an expanding chamber is present. These two types of instability are observed in our “helicon” reactor operated without a static magnetic field in low-pressure Ar∕SF6 mixtures. Temporally and spatially resolved measurements show that, in our experiment, the downstream instability is a periodic formation and propagation of a double layer. The double layer is born at the end of the source tube and propagates slowly to the end of the expansion region with a velocity of 150ms⁻¹
Credentialing in interventional therapy in Europe - comparison of curricula including endovascular therapy of arterial diseases

The prevalence of peripheral artery disease (PAD) is continuously increasing. In addition, the treatment of PAD has changed substantially over the last decades. Novel treatment modalities and diagnostic tools were developed and endovascular therapy was established as a first-line therapy. In consequence, vascular medicine has become an interdisciplinary field, involving different specialties such as internal medicine/cardiology, internal medicine/angiology, vascular surgery, and (interventional) radiology. Attributed to the expanding field and to ensure high quality and standardized training, various curricula were developed. Not only within the different medical disciplines but across countries. We compared the training programmes in Germany, Switzerland, and Europe and found a great variety in these curricula and programmes. Nevertheless, we identified first attempts to harmonize training requirements within the various societies: the interdisciplinary guidelines of the German Society for Cardiology (DGK) and the German Society of Angiology, the adoption of European standards on a national level, and the Swiss initiative of the Union of Vascular Societies of Switzerland (UVSS). The standard and level of training is high in all curricula and societies. However, further harmonization is needed to optimize patient care and ensure a uniform quality level across different vascular societies
Nursing team leader handover in the intensive care unit contains diverse and inconsistent content: An observational study

Background: Despite a proliferation of evidence and the development of standardised tools
to improve communication at handover, evidence to guide the handover of critical patient
information between nursing team leaders in the intensive care unit is limited.
Objective: The study aim was to determine the content of information handed over during
intensive care nursing team leader shift-to-shift handover.
Design: A prospective observational study.
Setting: A 21-bed medical/surgical adult intensive care unit specialising in cardiothoracic
surgery at a tertiary referral hospital in Queensland, Australia.
Participants: Senior nurses (Grade 5 and 6 Registered nurses) working in team leader roles,
employed in the intensive care unit were sampled.
Method: After obtaining consent from nursing staff, team leader handovers were
audiotaped over 20 days. Audio recordings were transcribed and analysed using deductive
and inductive content analysis. The frequency of content discussed at handover that fell
within the a priori categories of the ISBAR schema (Identify-Situation-BackgroundAssessment-Recommendation)
was calculated.
Results: Forty nursing team leader handovers were recorded resulting in 277 patient
handovers and a median of 7 (IQR 2) patients discussed at each handover. The majority of
nurses discussed the Identity (99%), Situation (96%) and Background (88%) of the patient,
however Assessment (69%) content was varied and patient Recommendations (60%) were
discussed less frequently. A diverse range of additional information was discussed that did
not fit into the ISBAR schema.
Conclusions: Despite universal acknowledgement of the importance of nursing team
leader handover, there are no previous studies assessing its content. Study findings
indicate that nursing team leader handovers contain diverse and inconsistent content,
which could lead to inadequate handovers that compromise patient safety. Further work is
required to develop structured handover processes for nursing team leader handovers.Griffith Health, School of Nursing and MidwiferyFull Tex
Multi-model cross-pollination in time.

The predictive skill of complex models is rarely uniform in model-state space; in weather forecasting models, for example, the skill of the model can be greater in the regions of most interest to a particular operational agency than it is in “remote” regions of the globe. Given a collection of models, a multi-model forecast system using the cross-pollination in time approach can be generalized to take advantage of instances where some models produce forecasts with more information regarding specific components of the model-state than other models, systematically. This generalization is stated and then successfully demonstrated in a moderate () dimensional nonlinear dynamical system, suggested by Lorenz, using four imperfect models with similar global forecast skill. Applications to weather forecasting and in economic forecasting are discussed. Given that the relative importance of different phenomena in shaping the weather changes in latitude, changes in attitude among forecast centers in terms of the resources assigned to each phenomena are to be expected. The demonstration establishes that cross-pollinating elements of forecast trajectories enriches the collection of simulations upon which the forecast is built, and given the same collection of models can yield a new forecast system with significantly more skill than the original forecast system
UVB-Induced Skin Inflammation and Cutaneous Tissue Injury Is Dependent on the MHC Class I-Like Protein, CD1d.

CD1d is a major histocompatibility complex class 1-like molecule that regulates the function and development of natural killer T (NKT) cells. Previously, we identified a critical role for the CD1d-NKT cell arm of innate immunity in promoting the development of UVB-induced p53 mutations, immune suppression, and skin tumors. Sunburn, an acute inflammatory response to UVB-induced cutaneous tissue injury, represents a clinical marker for non-melanoma skin cancer (NMSC) risk. However, the innate immune mechanisms controlling sunburn development are not considered relevant in NMSC etiology, and remain poorly investigated. Here we found that CD1d knockout (CD1d(-/-)) mice resist UVB-induced cutaneous tissue injury and inflammation compared with wild-type (WT) mice. This resistance was coupled with a faster epithelial tissue healing response. In contrast, the skins of UVB-irradiated invariant NKT cell-knockout (Jα18(-/-)) and NKT cell-deficient (TCRα(-/-)) mice, which express CD1d but are deficient in CD1d-dependent NKT cells, exhibited as much cutaneous tissue injury and inflammation as WT mice. In the absence of NKT cells, CD1d-deficient keratinocytes, dendritic cells, and macrophages exhibited diminished basal and stress-induced levels of pro-inflammatory mediators. Thus, our findings identify an essential role for CD1d in promoting UVB-induced cutaneous tissue injury and inflammation. They also suggest sunburn and NMSC etiologies are immunologically linked
Dynamics in Dumbbell domains II. The limiting problem

In this work we continue the analysis of the asymptotic dynamics of reaction diffusion problems in a dumbbell domains started in [3]. Here we study the limiting problem, that is, an evolution problem in a \domain" which consists of an open, bounded and smooth set Ω RN with a curve R0 attached to it. The evolution in both parts of the domain is governed by a parabolic equation. In  Ω the evolution is independent of the evolution in R0 whereas in R0 the evolution depends of the evolution in  through the continuity condition of the solution at the junction points. We analyze in detail the linear elliptic and parabolic problem, the generation of linear and nonlinear semigroups, the existence and structure of attractors.\u
A search for debris disks in the Herschel ATLAS

Aims: We aim to demonstrate that the Herschel ATLAS (H-ATLAS) is suitable for
a blind and unbiased survey for debris disks by identifying candidate debris
disks associated with main sequence stars in the initial science demonstration
field of the survey. We show that H-ATLAS reveals a population of
far-infrared/sub-mm sources that are associated with stars or star-like objects
on the SDSS main-sequence locus. We validate our approach by comparing the
properties of the most likely candidate disks to those of the known population.
Methods: We use a photometric selection technique to identify main sequence
stars in the SDSS DR7 catalogue and a Bayesian Likelihood Ratio method to
identify H-ATLAS catalogue sources associated with these main sequence stars.
Following this photometric selection we apply distance cuts to identify the
most likely candidate debris disks and rule out the presence of contaminating
galaxies using UKIDSS LAS K-band images. Results: We identify 78 H-ATLAS
sources associated with SDSS point sources on the main-sequence locus, of which
two are the most likely debris disk candidates: H-ATLAS J090315.8 and H-ATLAS
J090240.2. We show that they are plausible candidates by comparing their
properties to the known population of debris disks. Our initial results
indicate that bright debris disks are rare, with only 2 candidates identified
in a search sample of 851 stars. We also show that H-ATLAS can derive useful
upper limits for debris disks associated with Hipparcos stars in the field and
outline the future prospects for our debris disk search programme.Comment: 5 pages, 3 figures, accepted by A&A for the Herschel Special Issu
2MASS J20261584-2943124: An Unresolved L0.5 + T6 Spectral Binary

We identify the L dwarf 2MASS J20261584-2943124 as an unresolved spectral
binary, based on low-resolution, near-infrared spectroscopy from IRTF/SpeX. The
data reveal a peculiar absorption feature at 1.6 microns, previously noted in
the spectra of other very low-mass spectral binaries, which likely arises from
overlapping FeH and CH4 absorption bands in the blended light of an L dwarf/T
dwarf pair. Spectral template matching analysis indicates component types of
L0.5 and T6, with relative brightness Delta H = 4.2+/-0.6. Laser guide star
adaptive optics imaging observations with Keck/NIRC2 fail to resolve the
source, indicating a maximum separation at the observing epoch of 0.25 arcsec,
or a projected separation of 9 AU assuming a distance of 36+/-5 pc. With an age
that is likely to be relatively older (>5 Gyr based on the system's large vtan
and mass ratio arguments, the relative motion of the potentially "massive"
(0.06-0.08 Msun) components of 2MASS J2026-2943 may be detectable through
radial velocity variations, like its earlier-type counterpart 2MASS
J03202839-0446358 (M8+T5), providing dynamical mass measurements that span the
hydrogen burning limit.Comment: 25 pages, 5 figures; AJ in pres
Real elements in the mapping class group of $T^2$

We present a complete classification of elements in the mapping class group
of the torus which have a representative that can be written as a product of
two orientation reversing involutions. Our interest in such decompositions is
motivated by features of the monodromy maps of real fibrations. We employ the
property that the mapping class group of the torus is identifiable with
$SL(2,\Z)$ as well as that the quotient group $PSL(2,\Z)$ is the symmetry group
of the {\em Farey tessellation} of the Poincar\'e disk.Comment: 15 pages, 11 figure
High energy resummation of direct photon production at hadronic
  colliders

Direct photon production is an important process at hadron colliders, being
relevant both for precision measurement of the gluon density, and as background
to Higgs and other new physics searches. Here we explore the implications of
recently derived results for high energy resummation of direct photon
production for the interpretation of measurements at the Tevatron and the LHC.
The effects of resummation are compared to various sources of theoretical
uncertainties like PDFs and scale variations. We show how the high--energy
resummation procedure stabilizes the logarithmic enhancement of the cross
section at high--energy which is present at any fixed order in the perturbative
expansion starting at NNLO. The effects of high--energy resummation are found
to be negligible at Tevatron, while they enhance the cross section by a few
percent for $p_T \lsim 10$ GeV at the LHC. Our results imply that the
discrepancy at small $p_T$ between fixed order NLO and Tevatron data cannot be
explained by unresummed high--energy contributions.Comment: 15 pages, 7 figure