pinecone/core-2020-05-10-deduplication huggingface dataset:
Measurement of four-jet differential cross sections in $\sqrt{s}=8$ TeV
  proton-proton collisions using the ATLAS detector

Differential cross sections for the production of at least four jets have
been measured in proton-proton collisions at $\sqrt{s} = 8$ TeV at the Large
Hadron Collider using the ATLAS detector. Events are selected if the four
anti-$k_{t}$ R=0.4 jets with the largest transverse momentum ($p_{T}$) within
the rapidity range $|y|<2.8$ are well separated ($dR^{\rm min}_{4j}>0.65$), all
have $p_{T}>64$ GeV, and include at least one jet with $p_{T} >100$ GeV. The
dataset corresponds to an integrated luminosity of 20.3 $fb^{-1}$. The cross
sections, corrected for detector effects, are compared to leading-order and
next-to-leading-order calculations as a function of the jet momenta, invariant
masses, minimum and maximum opening angles and other kinematic variables.Comment: 59 pages plus author list (75 pages total), 19 figures, 49 tables,
  published version, all figures including auxiliary figures are available at
  https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2014-14
Measurement of $D^{*\pm}$, $D^\pm$ and $D_s^\pm$ meson production cross
  sections in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector

The production of $D^{*\pm}$, $D^\pm$ and $D_s^\pm$ charmed mesons has been
measured with the ATLAS detector in $pp$ collisions at $\sqrt{s}=7$ TeV at the
LHC, using data corresponding to an integrated luminosity of $280\,$nb$^{-1}$.
The charmed mesons have been reconstructed in the range of transverse momentum
$3.5<p_{\rm T}(D)<100$ GeV and pseudorapidity $|\eta(D)|<2.1$. The differential
cross sections as a function of transverse momentum and pseudorapidity were
measured for $D^{*\pm}$ and $D^\pm$ production. The next-to-leading-order QCD
predictions are consistent with the data in the visible kinematic region within
the large theoretical uncertainties. Using the visible $D$ cross sections and
an extrapolation to the full kinematic phase space, the strangeness-suppression
factor in charm fragmentation, the fraction of charged non-strange $D$ mesons
produced in a vector state, and the total cross section of charm production at
$\sqrt{s}=7$ TeV were derived.Comment: 27 pages plus author list (43 pages total), 6 figures, 6 tables,
  published version, all figures and tables are available at
  https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/BPHY-2013-04
Search for supersymmetry in electroweak production with photons and
  large missing transverse energy in pp collisions at sqrt(s) = 8 TeV

Results are reported from a search for supersymmetry with gauge-mediated
supersymmetry breaking in electroweak production. Final states with photons and
large missing transverse energy (MET) were examined. The data sample was
collected in pp collisions at sqrt(s) = 8 TeV with the CMS detector at the LHC
and corresponds to 7.4 inverse femtobarns. The analysis focuses on scenarios in
which the lightest neutralino has bino- or wino-like components, resulting in
decays to photons and gravitinos, where the gravitinos escape undetected. The
data were obtained using a specially designed trigger with dedicated low
thresholds, providing good sensitivity to signatures with photons, MET, and low
hadronic energy. No excess of events over the standard model expectation is
observed. The results are interpreted using the model of general gauge
mediation. With the wino mass fixed at 10 GeV above that of the bino, wino
masses below 710 GeV are excluded at 95% confidence level. Constraints are also
set in the context of two simplified models, for which the analysis sets the
lowest cross section limits on the electroweak production of supersymmetric
particles.Comment: Replaced with published version. Added the journal reference and DOI.
  All figures and tables can be found at
  http://cms-results.web.cern.ch/cms-results/public-results/publications/SUS-14-016/index.htm
Environmental processes in Rano Aroi (Ester Island) peat geochemistry forced by climate variability during the last 70 kyr

We analyze the geochemistry of Rano Aroi mire record (Easter Island) using bulk peat composition (C, N, S) and stable isotopes (δ13C, δ15N, δ34S) and major, minor and trace elemental compositions obtained by ICP-AES (Al, Ti, Zr, Sc, V, Y, Fe, Mn, Th, Ba, Ca,Mg and Sr). Peat geochemistry and the pollen record are used to reconstruct the environmental changes during the last 70 kyr BP. Principal component analysis on ICP-AES data revealed that three main components account for the chemical signatures of the peat. The first component, characterized by lithogenic elements (combined signal of V, Al, Sc, Y, Cr, Cd, Ti, Zr and Cu), evidences long-term changes in the basal fluxes of mineralmaterial into themire. This component, in combination with stable isotopes and pollen data suggests a link between soil erosion and vegetation cover changes in the Rano Aroiwatershed. The second component is identified by the signal of Fe, Mn, Th, Ba, Zr and Ti, and is indicative of strong runoff events during enhanced precipitation periods. The third component (tied mainly to Ca, Sr and Mg) reflects a strong peat oxidation event that occurred during an arid periodwithmore frequent droughts, sometime between 39 and 31 kyr BP. Correlation coefficients and a multiple regression model (PCR analysis) between peat organic chemistry and the principal components of ICP-AES analysis were calculated. Isotope chemistry of the peat organic matter further contributes to define Rano Aroi environmental history: δ13C data corroborates a vegetation shift documented by the palynological record from C4 to C3 between 55 and 45 cal kyr BP; the δ15N record identifies periods of changes in mire productivity and denitrification processes, while the δ34S peat signature indicates a marine origin of S and significant diagenetic cycling. The geochemical and environmental evolution of Rano Aroi mire is coherent with the regional climatic variability and suggests that climate was the main forcing in mire evolution during the last 70 kyr BP. The coupling of geochemical and biological proxies improves our ability to decipher depositional processes in tropical and subtropical peatlands and to use these sequences for paleoenvironmental and paleoclimate reconstructions
First NuSTAR Observations of Mrk 501 within a Radio to TeV Multi-Instrument Campaign

We report on simultaneous broadband observations of the TeV-emitting blazar Markarian 501 between 2013 April 1 and August 10, including the first detailed characterization of the synchrotron peak with Swift and NuSTAR. During the campaign, the nearby BL Lac object was observed in both a quiescent and an elevated state. The broadband campaign includes observations with NuSTAR, MAGIC, VERITAS, the Fermi Large Area Telescope, Swift X-ray Telescope and UV Optical Telescope, various ground-based optical instruments, including the GASP-WEBT program, as well as radio observations by OVRO, Metsähovi, and the F-Gamma consortium. Some of the MAGIC observations were affected by a sand layer from the Saharan desert, and had to be corrected using event-by-event corrections derived with a Light Detection and Ranging (LIDAR) facility. This is the first time that LIDAR information is used to produce a physics result with Cherenkov Telescope data taken during adverse atmospheric conditions, and hence sets a precedent for the current and future ground-based gamma-ray instruments. The NuSTAR instrument provides unprecedented sensitivity in hard X-rays, showing the source to display a spectral energy distribution (SED) between 3 and 79 keV consistent with a log-parabolic spectrum and hard X-ray variability on hour timescales. None (of the four extended NuSTAR observations) show evidence of the onset of inverse-Compton emission at hard X-ray energies. We apply a single-zone equilibrium synchrotron self-Compton (SSC) model to five simultaneous broadband SEDs. We find that the SSC model can reproduce the observed broadband states through a decrease in the magnetic field strength coinciding with an increase in the luminosity and hardness of the relativistic leptons responsible for the high-energy emission
Some combinatorial invariants determined by Betti numbers of Stanley-Reisner ideals

The papers in this thesis are not available in Munin: 
<br>Paper 1: Trygve Johnsen, Jan Roksvold, Hugues Verdure (2014): 'Betti numbers associated to
the facet ideal of a matroid', available in  <a href="http://dx.doi.org/10.1007/s00574-014-0071-9">Bulletin of the Brazilian Mathematical Society 45 no. 4, 727-744</a>
<br>Paper 2: Trygve Johnsen, Jan Roksvold, Hugues Verdure (2014): 'A generalization of weight
polynomials to matroids', manuscript
<br>Paper 3: Jan Roksvold, Hugues Verdure (2015): 'Betti numbers of skeletons', manuscriptThe thesis contains new results on the connection between the algebraic properties of certain ideals of a polynomial ring and properties of error-correcting linear codes, matroids and simplicial complexes. We demonstrate that the graded Betti numbers of the facet ideal of a matroid are determined by the Betti numbers of the blocks of the matroid. The extended weight enumerator of coding theory is generalized to matroids. We show that this generalization is equivalent to the Tutte-polynomial, and that the coefficients of this polynomial is determined by Betti numbers of the Stanley-Reisner ideal of the matroid and its elongations. The Betti numbers of the Stanley-Reisner ring of a skeleton of a simplicial complex is demonstrated to be an integral linear combination of the Betti numbers associated to the original complex
Measurement of the b-hadron production cross section using decays to D*(+)mu X- final states in pp collisions at root s=7 TeV with the ATLAS detector

The b-hadron production cross section is measured with the ATLAS detector in pp collisions at root s = 7 TeV, using 3.3 pb(-1) of integrated luminosity, collected during the 2010 LHC run. The b-hadrons are selected by partially reconstructing D*(+)mu X- final states. Differential cross sections are measured as functions of the transverse momentum and pseudorapidity. The measured production cross section for a b-hadron with p(T) > 9 GeV and vertical bar eta vertical bar < 2.5 is 32.7 +/- 0.8(stat.)(-6.8)(+4.5)(syst.) mu b, higher than the next-to-leading-order QCD predictions but consistent within the experimental and theoretical uncertainties
Combined search for the standard model higgs boson using up to 4.9 fb(-1) of pp collision data at root s=7 TeV with the ATLAS detector at the LHC

A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb(-1) to 4.9 fb(-1) of pp collisions collected at root s = 7 TeV is presented. The Higgs boson mass ranges 112.9-115.5 GeV, 131-238 GeV and 251-466 GeV are excluded at the 95% confidence level (CL), while the range 124-519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around m(H) similar to 126 GeV with a local significance of 3.5 standard deviations (sigma). The local significances of H -> gamma, H -> ZZ(()*()) -> l(+)l(-)l'(+)l'(-) and H -> WW(*()) l(+)nu l'(-)(nu) over bar, the three most sensitive channels in this mass range, are 2.8 sigma, 2.1 sigma and 1.4 sigma. respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110-600 GeV is estimated to be similar to 1.4% or, equivalently, 2.2 sigma
Detection of cellular aging in a Galton-Watson process

International audienceWe consider the bifurcating Markov chain model introduced by Guyon to detect cellular aging from cell lineage. To take into account the possibility for a cell to die, we use an underlying Galton-Watson process to describe the evolution of the cell lineage. We give in this more general framework a weak law of large number, an invariance principle and thus fluctuation results for the average over one generation or up to one generation. We also prove the fluctuations over each generation are independent. Then we present the natural modifications of the tests given by Guyon in cellular aging detection within the particular case of the auto-regressive model
Modeling the role of mid-wavelength cones in circadian responses to light.

Nonvisual responses to light, such as photic entrainment of the circadian clock, involve intrinsically light-sensitive melanopsin-expressing ganglion cells as well as rod and cone photoreceptors. However, previous studies have been unable to demonstrate a specific contribution of cones in the photic control of circadian responses to light. Using a mouse model that specifically lacks mid-wavelength (MW) cones we show that these photoreceptors play a significant role in light entrainment and in phase shifting of the circadian oscillator. The contribution of MW cones is mainly observed for light exposures of short duration and toward the longer wavelength region of the spectrum, consistent with the known properties of this opsin. Modeling the contributions of the various photoreceptors stresses the importance of considering the particular spectral, temporal, and irradiance response domains of the photopigments when assessing their role and contribution in circadian responses to light
Oxidation kinetics of a Ni-Cu based cermet at high temperature

International audienceThe oxidation kinetics of a cermet composed of Ni-Cu alloy and nickel ferrite was studied by thermogravimetry at 960 °C under oxygen in the range 0.5-77 kPa. After an initial mass increase up to 15 g/m2 due to oxidation of surface metallic particles, the mass change was attributed to both outwards NiO growth and internal oxidation. Above 40 g/m2, the NiO scale thickness remained constant and the oxidation kinetics followed a complete parabolic law. The variations of the kinetic rate with oxygen partial pressure allowed to propose mechanisms, rate-controlling steps and kinetic laws in both transient and long term oxidation periods
A Lensing Survey of X-ray Luminous Galaxy Clusters at Redshift z ~ 0.2: II: CFH12k Weak Lensing Analysis and Global Correlations

Full version with high resolution figures at http://www.ast.obs-mip.fr/users/soucail/highlx.pdfInternational audienceAims: We present a wide-field multi-color survey of a homogeneous sample of eleven clusters of galaxies for which we measure total masses and mass distributions from weak lensing. Methods: The eleven clusters in our sample are all X-ray luminous and span a narrow redshift range at z=0.21 +/- 0.04. The weak lensing analysis of the sample is based on ground-based wide-field imaging obtained with the CFH12k camera on CFHT. We use the methodology developed and applied previously on the massive cluster Abell 1689. A Bayesian method, implemented in the Im2shape software, is used to fit the shape parameters of the faint background galaxies and to correct for PSF smearing. With the present data, shear profiles are measured in all clusters out to at least 2 Mpc (more than 15arcmin from the center) with high confidence. The radial shear profiles are fitted with different parametric mass profiles and the virial mass M_200 is estimated for each cluster and then compared to other physical properties. Results: Scaling relations between mass and optical luminosity indicate an increase of the M/L ratio with luminosity and a L_X-M_200 relation scaling as L_X \propto M_200^(0.83 +/- 0.11) while the normalization of the M_200 \propto T_X^{3/2} relation is close to the one expected from hydrodynamical simulations of cluster formation as well as previous X-ray analyses. We suggest that the dispersion in the M_200-T_X and M_200-L_X relations reflects the different merging and dynamical histories for clusters of similar X-ray luminosities and intrinsic variations in their measured masses. Improved statistics of clusters over a wider mass range are required for a better control of the intrinsic scatter in scaling relations
Secant varieties to osculating varieties of Veronese embeddings of P^n

International audienceA well known theorem by Alexander-Hirschowitz states that all the higher secant varieties of $V_{n,d}$ (the $d$-uple embedding of $\PP n$) have the expected dimension, with few known exceptions. We study here the same problem for $T_{n,d}$, the tangential variety to $V_{n,d}$, and prove a conjecture, which is the analogous of Alexander-Hirschowitz theorem, for $n\leq 9$. Moreover. we prove that it holds for any $n,d$ if it holds for $d=3$. Then we generalize to the case of $O_{k,n,d}$, the $k$-osculating variety to $V_{n,d}$, proving, for $n=2$, a conjecture that relates the defectivity of $\sigma_s(O_{k,n,d})$ to the Hilbert function of certain sets of fat points in $\PP n$
Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at sqrt(s) = 8 TeV

A search for new resonances decaying to WW, ZZ, or WZ is presented. Final states are considered in which one of the vector bosons decays leptonically and the other hadronically. Results are based on data corresponding to an integrated luminosity of 19.7 fb−1 recorded in proton-proton collisions at s√ = 8 TeV with the CMS detector at the CERN LHC. Techniques aiming at identifying jet substructures are used to analyze signal events in which the hadronization products from the decay of highly boosted W or Z bosons are contained within a single reconstructed jet. Upper limits on the production of generic WW, ZZ, or WZ resonances are set as a function of the resonance mass and width. We increase the sensitivity of the analysis by statistically combining the results of this search with a complementary study of the all-hadronic final state. Upper limits at 95% confidence level are set on the bulk graviton production cross section in the range from 700 to 10 fb for resonance masses between 600 and 2500 GeV, respectively. These limits on the bulk graviton model are the most stringent to date in the diboson final state
In situ study of the initial stages of diamond deposition on 3C-SiC (100) surfaces: Towards the mechanisms of diamond nucleation

The mechanisms involved in the diamond nucleation on 3C-SiC surfaces have been investigated using a sequential in situ approach using electron spectroscopies (XPS, XAES and ELS). Moreover, diamond crystals have been studied by HRSEM. The in situ nucleation treatment allows a high diamond nucleation density close to 4 x 10(10) cm(-2). During the in situ enhanced nucleation treatment under Plasma, a negative bias was applied to the sample. The formation of an amorphous carbon phase and the roughening of the 3C-SiC surface have been observed. The part of these competing mechanisms in diamond nucleation is discussed
The Effects of Environmental Quality on Residential Choice\ud
Location

The aim of this research is to investigate the effects of environmental conditions in a given area on the residential location and\ud
the consequences on urban sprawl and accessibility. In particular, the study focuses on the effects of environmental quality and\ud
landscaping on property values. To this aim, the paper presents some hedonic Multiple Linear Regression models (MLR)\ud
estimating the housing price in metropolitan areas as a function of real-estate, environmental and accessibility variables.\ud
The hedonic models have been estimated using data collected in the province of Taranto (South-Italy) where the biggest steel\ud
factory in Europe (namely, ILVA), and one of the most important industrial port in the Mediterranean Sea are located. The set of\ud
considered variables were carried out from a location choice survey and hedonic regression estimators are presented to verify to\ud
what extent a relationship between the accessibility conditions, environmental context and the dwelling market values does exist.\ud
The results indicate that the inclusion, in the model specification, of the environmental variables between zones fit the data\ud
significantly better
Erupting Filaments with Large Enclosing Flux Tubes as Sources of High-mass Three-part CMEs, and Erupting Filaments in the Absence of Enclosing Flux Tubes as Sources of Low-mass Unstructured CMEs

The 3-part appearance of many coronal mass ejections (CMEs) arising from erupting filaments emerges from a large magnetic flux tube structure, consistent with the form of the erupting filament system. Other CMEs arising from erupting filaments lack a clear 3-part structure and reasons for this have not been researched in detail. This paper aims to further establish the link between CME structure and the structure of the erupting filament system and to investigate whether CMEs which lack a 3-part structure have different eruption characteristics. A survey is made of 221 near-limb filament eruptions observed from 2013 May 03 to 2014 June 30 by Extreme UltraViolet (EUV) imagers and coronagraphs. Ninety-two filament eruptions are associated with 3-part structured CMEs, 41 eruptions are associated with unstructured CMEs. The remaining 88 are categorized as failed eruptions. For 34% of the 3-part CMEs, processing applied to EUV images reveals the erupting front edge is a pre-existing loop structure surrounding the filament, which subsequently erupts with the filament to form the leading bright front edge of the CME. This connection is confirmed by a flux-rope density model. Furthermore, the unstructured CMEs have a narrower distribution of mass compared to structured CMEs, with total mass comparable to the mass of 3-part CME cores. This study supports the interpretation of 3-part CME leading fronts as the outer boundaries of a large pre-existing flux tube. Unstructured (non 3-part) CMEs are a different family to structured CMEs, arising from the eruption of filaments which are compact flux tubes in the absence of a large system of enclosing closed field.authorsversionPeer reviewe
External Bremsstrahlung of 147Pm in PbCl2 and CdO

External Bremsstrahlung spectra produced in thick target compounds like lead chloride (PbCl2) and cadmium oxide (CdO) by Î² particles of 147Pm (225 keV) were measured using 3.8 cm Ã 3.8 cm NaI(Tl) crystal. The spectra were unfolded using Liden-Starfelt procedure. The unfolded spectra were compared with Tseng-Pratt theory. The measured spectra show fairly good agreement at low energy end of spectrum and some deviation (less than 10) at higher energy end of spectrum with the theory. The estimation of Bremsstrahlung dose from the measured/theoretical spectrum is also discussed. Â© 2010 Elsevier B.V
Measurement of the total and differential inclusive B+ hadron cross
  sections in pp collisions at sqrt(s) = 13 TeV

The differential cross sections for inclusive production of B+ hadrons are
measured as a function of the B+ transverse momentum pT[B] and rapidity y[B] in
pp collisions at a centre-of-mass energy of 13 TeV, using data collected by the
CMS experiment that correspond to an integrated luminosity of 49.4 inverse
picobarns. The measurement uses the exclusive decay channel B+ to J/psi K+,
with J/psi mesons that decay to a pair of muons. The results show a reasonable
agreement with theoretical calculations within the uncertainties.Comment: Replaced with the published version. Added the journal reference. All
  the figures and tables can be found at
  http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-15-004/index.html
  (CMS Public Pages